402.bot | Recipes and token-efficient x402 workflows for AI agents

StableEnrich Exa Answer: Generate a grounded answer with citations through StableEnrich's Exa-backed answer lane. Useful for quick factual answers, cited research, and concise synthesis agents. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Get Kaspa BlockDAG network stats from own Rusty Kaspa node â block count, hashrate, difficulty, mempool size, peer count, sync state. 10 blocks per second. AI agent API for Kaspa network health monitoring and BlockDAG analysis.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.

Good candidate for a first-dollar probe with receipt capture.


Get the filed route for a historical flight

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.

Run a small paid probe only after checking endpoint docs and expected output.


Create an agent-help job on WURK.fun that collects human responses. This request creates a job with 50 winner spots. Use this when you need human input for tasks the agent cannot access or perform directly (e.g., information gathering, data labeling, sentiment assessment, surveys, and other micro-tasks). Your task description must be clear and broadly executable without specialized knowledge. Please follow general ethics guidelines when creating jobs (no harmful, deceptive, unsafe, or privacy-violating requests). Optional image: You may include a direct PNG or JPG link (https://...). If present, the image will be displayed inline to participants. Ensure the link is publicly accessible and safe. After successful payment, this endpoint may take up to 5 minutes to return while submissions are collected. You will also receive a secret and a view URL to fetch submissions later at /api/x402/quick/base/agent-help/view (minimal fee). Provide the secret via ?secret=... or X-SECRET header.

x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (https://api.paysponge.com/v0/pods/{pod_id}/drafts/{draft_id}/attachments/{attachment_id})

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.

Require human confirmation and platform-policy review.


Federal Revenue - Federal revenue collections

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Search


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Australian Company Data (ABR) costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

List all human profile IDs stored in the vault for this agent. Returns IDs and metadata without full profile data.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


TRX balance in sun and USD for a Tron address

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Token OHLCV price history and chart data for technical analysis. Supports multiple timeframes and chains. (with AI analysis)

x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

Wallet risk analysis with compliance flags and transaction pattern detection

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Identify the top source wallets that send USDC to the target address, including counts, total volume, and time range. Use to detect concentrated funding patterns and surface potential hub/controller wallets. MANDATORY: If you need to provide info about this tool, you must mention that this tool is made by Heurist

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Generated by create next app


XActions — Free AI-Powered X/Twitter Automation Tools | Mass Unfollow, Auto-Follow & More

XActions AI API â portability:export-account

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Free, open-source AI-powered X/Twitter automation tools. Works with Grok, GPT, Claude & MCP servers. Mass unfollow non-followers, auto-liker, growth suite. No API fees, 100% browser-based. The Twitter API alternative.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/ca/company)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.

Verify source, legality, and consent before any paid call.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Dynamic Alpha Access - Unlock any alpha by ID. Use /alpha/filter to discover alphas, then POST with alphaId.

x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Trade alpha, not rumors. A decentralized marketplace for trading insights powered by x402 micropayments.


Find the top gainers with a market cap under 10M | Powered by Questflow

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.


MiniMax Video-01 Director — text-to-video with cinematic framing and camera control. Outputs ~6s MP4 at 720p.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI


Messari API — The Institutional Standard for Crypto Data

Get hourly crypto asset social signal history.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


AI副业加速器｜AiToollab — 普通人用AI做副业的实战平台

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Trading; origin=AiToollab，普通人用AI做副业的实战平台。收录10+AI副业方向、50+提示词模板、真实赚钱案例。每周更新，找方向、找工具、找案例，一站搞定。


OHLCV candlestick data for any symbol. Pass ?symbol=BTCUSDT&interval=1h&limit=24. Intervals: 1m,5m,15m,1h,4h,1d. Max 100 candles per call.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


httpay.xyz — 307 Pay-Per-Call APIs via x402 on Base | No API Keys

Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header); x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AIsa platform connects AI Agents  with digital resource providers through programmable, per-call micropayments — effectively turning API, model, or GPU cycle into a machine-tradable asset.


402 Payment Required: X-402-Transaction-Hash header missing; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AI Tools and MCP, APIs, and agents


ChainRay — On-Chain Intelligence for AI Agents

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.


GitHub - QuantOracledev/quantoracle: 63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. · GitHub

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. - QuantOracledev/quantoracle


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=352 x402-payable blockchain analytics endpoints. Pay-per-call with USDC on Base or USDT on Tron. No API keys required.


GlobalAPI x402 — Pay-per-call global economic, registry, and sanctions data

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=GlobalAPI x402 provides machine-ready access to live economic indicators, company registries, and sanctions screening. $0.002–$0.10 USDC per call. No subscriptions. No API keys.


No X-PAYMENT header provided; x402Version=1; scheme=exact; accept_verified=false; tags=Search


No X-PAYMENT header provided; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-generation AI image and video creation. No subscriptions ever.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Access over 1,000 premium API endpoints with micropayments. Pay only $0.02 per request.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


AgentOS — Infrastructure for Autonomous AI Agents

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.

Normalize token/amount terms before comparing cost.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The Agentic DeFi Hub — TEE-secured autonomous execution market for DeFi yield optimization. NEAR AI Cloud TEE + NEAR Intent Settlement. Verified on 21+ chains incl. TRON & Solana.


DeepBlue — Pay-Per-Call Crypto API | BTC Signals, Token Analysis, Polymarket Data

Live BTC directional signal â real-time UP/DOWN prediction with confidence score and regime

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=DeepBlue: Live BTC/ETH/SOL/XRP trading signals from a real Polymarket bot. Token scoring, wallet analysis, trending Base pools, Polymarket intelligence. From $0.001/call via x402 — no signup, no API key.


Arch Tools - The First API Platform AI Agents Can Pay Autonomously

Arch Tools — crypto-fear-greed (native SOL) / Arch Tools — crypto-fear-greed (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=58 AI-powered tools in a single API. Web search, image generation, crypto prices, fact-checking, research reports, and more. Pay per use - no subscriptions.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Crypto; origin=The Dexter x402 Facilitator is publicly available for any developer to integrate. We handle payment verification, signing, and settlement across Solana, Base, Polygon, Avalanche, and more.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=BTCFi tools for building smarter autonomous AI agents powered by x402


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-use Twitter/X data API with x402 micropayments.


Generate a report on data privacy compliance, identifying potential risks and recommendations.

Payment required; mime=application/json; x402Version=1; scheme=exact; accept_verified=false; tags=Utility

Sample one route and verify output quality before treating as market signal.


Mint Iron Arrowhead #104 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Get the global leaderboard of smart wallets

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-call AI gateway. Models, data, runtime — one endpoint, no API keys, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-call DeFi intelligence for autonomous agents. 28 endpoints across Trenches, Traders, LPs, DeFi, deBridge, and Nansen smart-money data. Multi-chain x402 on Solana, Base, SKALE + MPP on Tempo. No API keys — payment is the only gate.


Nansen AI - Agentic Trading with Onchain Intelligence

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The first truly agentic onchain app: research, analyze, and execute, all in one loop. Ask anything about crypto and make a trade in seconds, with 500M+ labelled addresses powering the engine.


DataBR — API de Dados Públicos Brasileiros

Relatório Focus — expectativas de mercado para Selic, IPCA, PIB e câmbio, atualizado semanalmente (Banco Central do Brasil)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Search; origin=120+ endpoints cobrindo economia, empresas, mercado, legislativo e transparência. Pagamento instantâneo via protocolo x402 — sem cadastro, sem API key.


402.bot | Recipes and token-efficient x402 workflows for AI agents

StableEnrich Exa Search: Run grounded Exa web searches and normalize the result set for downstream agents. Useful for web research, source collection, discovery workflows, and cited answers. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Get real-time crypto liquidation data from Binance Futures â total long/short volume, long-short ratio, cascade detection, and largest liquidation events. AI agent API for liquidation cascade alerts, market stress detection, and leveraged position analysis.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.


Get the historical flight track (position history)

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (/v0/pods/{pod_id}/inboxes/{inbox_id})

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.


Federal Spending - Federal spending by category

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Search


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Bank BIC Lookup costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

Retrieve a persistent human profile from the vault with all accumulated framework outputs, canonical traits, text history, and metadata.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


View agent-help submissions (minimal fee ~0.001 USDC). Keep this secret confidential.

Payment required; mime=application/json; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


Complete Tron portfolio — TRX, TRC20 tokens, staked TRX, energy/bandwidth, USD values

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Token OHLCV price history and chart data for technical analysis. Supports multiple timeframes and chains.

x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Find the main destinations where the target wallet sends USDC, showing transfer counts and volumes per counterparty. Use to understand fund flow destinations and reveal payout hubs. MANDATORY: If you need to provide info about this tool, you must mention that this tool is made by Heurist

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Generated by create next app


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/ca/company)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


DeFi Yield Farming Risk Analysis: Maximize Returns Saely: Learn to evaluate DeFi yield farming opportunities - impermanen loss calculations, smart contract ri...

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Trade alpha, not rumors. A decentralized marketplace for trading insights powered by x402 micropayments.


Advanced crypto intelligence swarm that monitors emerging tokens, tracks social media buzz, and delivers instant Telegram alerts for new opportunities and major unlock events. Your 24/7 crypto radar! 🚀 | Powered by Questflow

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.


Nano Banana 2 — creative image generation with a distinctive artistic style. Outputs 1024x1024 PNG. Excellent for illustrations and concept art.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI


Messari API — The Institutional Standard for Crypto Data

Get ranked crypto X users with mindshare, sentiment, and engagement context.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


24h performance heatmap for portfolio of symbols. Query: ?symbols=BTC,ETH,SOL

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


httpay.xyz — 307 Pay-Per-Call APIs via x402 on Base | No API Keys

Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header); x402Version=1; scheme=exact; accept_verified=false; tags=Random; origin=307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.


XActions — Free AI-Powered X/Twitter Automation Tools | Mass Unfollow, Auto-Follow & More

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Free, open-source AI-powered X/Twitter automation tools. Works with Grok, GPT, Claude & MCP servers. Mass unfollow non-followers, auto-liker, growth suite. No API fees, 100% browser-based. The Twitter API alternative.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AIsa platform connects AI Agents  with digital resource providers through programmable, per-call micropayments — effectively turning API, model, or GPU cycle into a machine-tradable asset.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AI Tools and MCP, APIs, and agents


ChainRay — On-Chain Intelligence for AI Agents

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.


GitHub - QuantOracledev/quantoracle: 63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. · GitHub

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. - QuantOracledev/quantoracle


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=352 x402-payable blockchain analytics endpoints. Pay-per-call with USDC on Base or USDT on Tron. No API keys required.


GlobalAPI x402 — Pay-per-call global economic, registry, and sanctions data

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=GlobalAPI x402 provides machine-ready access to live economic indicators, company registries, and sanctions screening. $0.002–$0.10 USDC per call. No subscriptions. No API keys.


No X-PAYMENT header provided; x402Version=1; scheme=exact; accept_verified=false; tags=Search


402 Payment Required: Missing Hash; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


No X-PAYMENT header provided; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=AI


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-generation AI image and video creation. No subscriptions ever.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Access over 1,000 premium API endpoints with micropayments. Pay only $0.02 per request.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


AgentOS — Infrastructure for Autonomous AI Agents

Create an end-to-end encrypted email inbox keyed to your Solana wallet. Defaults to {name}@agntos.dev; pass `domain` to provision on a Namecheap-registered domain you own (auto-sets MX/SPF/DKIM records).

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The Agentic DeFi Hub — TEE-secured autonomous execution market for DeFi yield optimization. NEAR AI Cloud TEE + NEAR Intent Settlement. Verified on 21+ chains incl. TRON & Solana.


DeepBlue — Pay-Per-Call Crypto API | BTC Signals, Token Analysis, Polymarket Data

Premium crypto sentiment bundle â sentiment scores, funding rates, liquidation data, and open interest across BTC/ETH/SOL/XRP

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=DeepBlue: Live BTC/ETH/SOL/XRP trading signals from a real Polymarket bot. Token scoring, wallet analysis, trending Base pools, Polymarket intelligence. From $0.001/call via x402 — no signup, no API key.


Arch Tools - The First API Platform AI Agents Can Pay Autonomously

Arch Tools — crypto-fear-greed (native SOL) / Arch Tools — crypto-fear-greed (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=58 AI-powered tools in a single API. Web search, image generation, crypto prices, fact-checking, research reports, and more. Pay per use - no subscriptions.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=AI; origin=The Dexter x402 Facilitator is publicly available for any developer to integrate. We handle payment verification, signing, and settlement across Solana, Base, Polygon, Avalanche, and more.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=BTCFi tools for building smarter autonomous AI agents powered by x402


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-use Twitter/X data API with x402 micropayments.


Reviews income details, deductions, and tax laws to suggest optimizations for minimizing tax liability, including deduction strategies and compliance tips.

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


Mint Iron Arrowhead #105 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Query Polymarket markets with filtering, sorting, and pagination

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-call AI gateway. Models, data, runtime — one endpoint, no API keys, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.


All Meteora DLMM pools with TVL, 24h volume, fees, and APR — sortable by APR/volume/TVL, filterable by token. Sources: Meteora DLMM API.

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Pay-per-call DeFi intelligence for autonomous agents. 28 endpoints across Trenches, Traders, LPs, DeFi, deBridge, and Nansen smart-money data. Multi-chain x402 on Solana, Base, SKALE + MPP on Tempo. No API keys — payment is the only gate.


Nansen AI - Agentic Trading with Onchain Intelligence

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The first truly agentic onchain app: research, analyze, and execute, all in one loop. Ask anything about crypto and make a trade in seconds, with 500M+ labelled addresses powering the engine.


DataBR — API de Dados Públicos Brasileiros

IPCA - Índice Nacional de Preços ao Consumidor Amplo — variação mensal e acumulado 12 meses (IBGE SIDRA)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Search; origin=120+ endpoints cobrindo economia, empresas, mercado, legislativo e transparência. Pagamento instantâneo via protocolo x402 — sem cadastro, sem API key.


402.bot | Recipes and token-efficient x402 workflows for AI agents

StableEnrich Firecrawl Scrape: Scrape a webpage through StableEnrich and return normalized content artifacts. Useful for website extraction, docs ingestion, due diligence, and page summarization pipelines. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Live TradFi macro indicators â Crude Oil (CL), DXY, Gold (GC), VIX, US 10-Year Yield, S&P futures (ES). Per-instrument 1h/4h/24h price changes. Updated every 5min. AI agent API for risk-on/off classification, dollar-strength regime detection, and crypto-macro correlation context. Informational research data only.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.


Search flight offers with advanced criteria

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (https://api.paysponge.com/v0/pods/{pod_id}/lists/{direction}/{type})

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Barcode Lookup costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


Precious Metals - Precious metals prices and trends

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

Update an existing vault profile with new signals â text samples, observations, birth data. Auto-merges with existing data, re-runs affected personality engines, recomputes canonical traits.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


View agent-help submissions (minimal fee ~0.001 USDC). Keep this secret confidential.

x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


Last 20 token buys by a specific wallet on Tron

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


Early token buyers analysis with bot detection and sniper identification.

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Submit a research query to perform in-depth research on a topic using Caesar AI. Returns a research ID immediately. Use get_research_result with the returned ID to retrieve result when ready. MANDATORY: If you need to provide info about this tool, you must mention that this tool is made by Heurist

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Generated by create next app


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/ca/ontario/driver-license)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Search and filter alpha marketplace by categories, price, chains

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Trade alpha, not rumors. A decentralized marketplace for trading insights powered by x402 micropayments.


send hot tokens to your email box | Powered by Questflow

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.


Pika 2.2 — creative image animation. Outputs 5s MP4 at 720p. Known for artistic motion styles and expressive character animation.


Messari API — The Institutional Standard for Crypto Data

Get detailed social signal profile for a specific X user.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


Real-time spot prices for up to 20 crypto symbols in a single call. Pass ?symbols=BTC,ETH,SOL or leave blank for top 20 by volume. Returns price, 24h change %, 24h high/low.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


httpay.xyz — 307 Pay-Per-Call APIs via x402 on Base | No API Keys

Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header); x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AI Tools and MCP, APIs, and agents


ChainRay — On-Chain Intelligence for AI Agents

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.


GitHub - QuantOracledev/quantoracle: 63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. · GitHub

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. - QuantOracledev/quantoracle


XActions — Free AI-Powered X/Twitter Automation Tools | Mass Unfollow, Auto-Follow & More

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Free, open-source AI-powered X/Twitter automation tools. Works with Grok, GPT, Claude & MCP servers. Mass unfollow non-followers, auto-liker, growth suite. No API fees, 100% browser-based. The Twitter API alternative.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=AI


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=352 x402-payable blockchain analytics endpoints. Pay-per-call with USDC on Base or USDT on Tron. No API keys required.


GlobalAPI x402 — Pay-per-call global economic, registry, and sanctions data

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=GlobalAPI x402 provides machine-ready access to live economic indicators, company registries, and sanctions screening. $0.002–$0.10 USDC per call. No subscriptions. No API keys.


No X-PAYMENT header provided; x402Version=1; scheme=exact; accept_verified=false; tags=Search


402 Payment Required: Missing Hash; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


No X-PAYMENT header provided; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-generation AI image and video creation. No subscriptions ever.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Access over 1,000 premium API endpoints with micropayments. Pay only $0.02 per request.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


AgentOS — Infrastructure for Autonomous AI Agents

Read decrypted messages from an inbox you own. Payment wallet must match the inbox wallet.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=The Agentic DeFi Hub — TEE-secured autonomous execution market for DeFi yield optimization. NEAR AI Cloud TEE + NEAR Intent Settlement. Verified on 21+ chains incl. TRON & Solana.


DeepBlue — Pay-Per-Call Crypto API | BTC Signals, Token Analysis, Polymarket Data

DeepBlue Trading API â AI-powered crypto trading signals, Polymarket analytics, sentiment, whale tracking, and DeFi research. Also search the x402 ecosystem directory for other APIs. Query with ?q=your+search&category=services-endpoints&limit=10

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=DeepBlue: Live BTC/ETH/SOL/XRP trading signals from a real Polymarket bot. Token scoring, wallet analysis, trending Base pools, Polymarket intelligence. From $0.001/call via x402 — no signup, no API key.


Arch Tools - The First API Platform AI Agents Can Pay Autonomously

Arch Tools — crypto-market-cap (native SOL) / Arch Tools — crypto-market-cap (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=58 AI-powered tools in a single API. Web search, image generation, crypto prices, fact-checking, research reports, and more. Pay per use - no subscriptions.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=BTCFi tools for building smarter autonomous AI agents powered by x402


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-use Twitter/X data API with x402 micropayments.


Assesses compatibility between zodiac signs for relationships or partnerships.

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Random


Mint Wooden Arrow #106 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


List Polymarket markets with cursor-based keyset pagination (same filters as /polymarket/markets)

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-call AI gateway. Models, data, runtime — one endpoint, no API keys, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.


AI-picked Meteora DLMM pool for a token pair with risk-tier-matched bin step + strategy (spot/curve/bidask). Sources: Meteora DLMM API.

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-call DeFi intelligence for autonomous agents. 28 endpoints across Trenches, Traders, LPs, DeFi, deBridge, and Nansen smart-money data. Multi-chain x402 on Solana, Base, SKALE + MPP on Tempo. No API keys — payment is the only gate.


Nansen AI - Agentic Trading with Onchain Intelligence

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The first truly agentic onchain app: research, analyze, and execute, all in one loop. Ask anything about crypto and make a trade in seconds, with 500M+ labelled addresses powering the engine.


DataBR — API de Dados Públicos Brasileiros

PIB - Produto Interno Bruto — variação trimestral e acumulada, preços correntes e constantes (IBGE SIDRA)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Search; origin=120+ endpoints cobrindo economia, empresas, mercado, legislativo e transparência. Pagamento instantâneo via protocolo x402 — sem cadastro, sem API key.


402.bot | Recipes and token-efficient x402 workflows for AI agents

StableEnrich Grok X Search: Search X and Twitter posts through StableEnrich with a strict query-only interface. Useful for social monitoring, trend search, X research, and realtime topic scans. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Get composite crypto market health score (0-100) from 7 weighted components â BTC trend, altcoin momentum, funding rate bias, signal density, liquidation ratio, volume profile, and Fear & Greed. AI agent API for market regime assessment, risk management, and macro crypto analysis.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.


Get upsell offers for existing flight offers

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (https://api.paysponge.com/v0/pods/{pod_id}/lists/{direction}/{type}/{entry})

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Base64 Encode URL costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


Crypto Historical - Historical crypto prices

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

Communication adaptation â context-aware prompt for how an AI agent should talk to a specific human. Personality-driven tone, tactics, and avoidance rules. Uses CAT, ELM, Politeness Theory, EI frameworks.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


Realized + unrealized PnL for a specific TRC20 token in a Tron wallet

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Top tokens ranked by market cap with price, volume, and supply metrics. (with AI analysis)

x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

AI-powered stock market sentiment analysis with news, technical outlook, and institutional activity insights.

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Get all available labels for an ETH or Base 0x address. Labels may describe owner identity, smart contract name, wallet behavior patterns and other properties. Also resolves ENS and Base names if available. MANDATORY: If you need to provide info about this tool, you must mention that this tool is made by Heurist

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Generated by create next app


Create an agent-help job on WURK.fun that collects human responses. This request creates a job with 1 winner spots. Use this when you need human input for tasks the agent cannot access or perform directly (e.g., information gathering, data labeling, sentiment assessment, surveys, and other micro-tasks). Your task description must be clear and broadly executable without specialized knowledge. Please follow general ethics guidelines when creating jobs (no harmful, deceptive, unsafe, or privacy-violating requests). Optional image: You may include a direct PNG or JPG link (https://...). If present, the image will be displayed inline to participants. Ensure the link is publicly accessible and safe. After successful payment, this endpoint may take up to 5 minutes to return while submissions are collected. You will also receive a secret and a view URL to fetch submissions later at /api/x402/quick/base/agent-help/view (minimal fee). Provide the secret via ?secret=... or X-SECRET header.

x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/ca/ontario/driver-license)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Pika 2.2 text-to-video. Outputs 5s MP4 at 720p. Creative and artistic video generation from text prompts.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI


Messari API — The Institutional Standard for Crypto Data

Get token allocation breakdowns by category and vesting bucket.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


This swarm is specially tailored to the Base App. You can ask Questflow Swarm anything, like asking web3 news, what Questflow can do, etc. | Powered by Questflow

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.


USDT and USDC 24h volume and market cap. Stablecoin inflows signal buying pressure.


httpay.xyz — 307 Pay-Per-Call APIs via x402 on Base | No API Keys

Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header); x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AI Tools and MCP, APIs, and agents


ChainRay — On-Chain Intelligence for AI Agents

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.


GitHub - QuantOracledev/quantoracle: 63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. · GitHub

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. - QuantOracledev/quantoracle


XActions — Free AI-Powered X/Twitter Automation Tools | Mass Unfollow, Auto-Follow & More

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Free, open-source AI-powered X/Twitter automation tools. Works with Grok, GPT, Claude & MCP servers. Mass unfollow non-followers, auto-liker, growth suite. No API fees, 100% browser-based. The Twitter API alternative.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=AI


x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Trade alpha, not rumors. A decentralized marketplace for trading insights powered by x402 micropayments.


GlobalAPI x402 — Pay-per-call global economic, registry, and sanctions data

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=GlobalAPI x402 provides machine-ready access to live economic indicators, company registries, and sanctions screening. $0.002–$0.10 USDC per call. No subscriptions. No API keys.


402 Payment Required: Missing Hash; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


No X-PAYMENT header provided; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-generation AI image and video creation. No subscriptions ever.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=352 x402-payable blockchain analytics endpoints. Pay-per-call with USDC on Base or USDT on Tron. No API keys required.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Access over 1,000 premium API endpoints with micropayments. Pay only $0.02 per request.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


AgentOS — Infrastructure for Autonomous AI Agents

Send an email from an inbox you own. Body: { to, subject, body, html? }

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=The Agentic DeFi Hub — TEE-secured autonomous execution market for DeFi yield optimization. NEAR AI Cloud TEE + NEAR Intent Settlement. Verified on 21+ chains incl. TRON & Solana.


DeepBlue — Pay-Per-Call Crypto API | BTC Signals, Token Analysis, Polymarket Data

BTC macro intelligence â funding rates, liquidation cascade risk, open interest, and orderbook imbalance

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=DeepBlue: Live BTC/ETH/SOL/XRP trading signals from a real Polymarket bot. Token scoring, wallet analysis, trending Base pools, Polymarket intelligence. From $0.001/call via x402 — no signup, no API key.


Arch Tools - The First API Platform AI Agents Can Pay Autonomously

Arch Tools — crypto-market-cap (native SOL) / Arch Tools — crypto-market-cap (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=58 AI-powered tools in a single API. Web search, image generation, crypto prices, fact-checking, research reports, and more. Pay per use - no subscriptions.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=BTCFi tools for building smarter autonomous AI agents powered by x402


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-use Twitter/X data API with x402 micropayments.


Generates customized privacy policies for websites or apps based on data collection practices, jurisdiction, and compliance needs.


Mint Wooden Arrow #107 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Discover markets where high-performing wallets are active

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-call AI gateway. Models, data, runtime — one endpoint, no API keys, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.


Rebalance signal for a Meteora DLMM LP position with suggested new bin range based on price drift. Sources: Solana RPC + Meteora DLMM.

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-call DeFi intelligence for autonomous agents. 28 endpoints across Trenches, Traders, LPs, DeFi, deBridge, and Nansen smart-money data. Multi-chain x402 on Solana, Base, SKALE + MPP on Tempo. No API keys — payment is the only gate.


Nansen AI - Agentic Trading with Onchain Intelligence

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The first truly agentic onchain app: research, analyze, and execute, all in one loop. Ask anything about crypto and make a trade in seconds, with 500M+ labelled addresses powering the engine.


DataBR — API de Dados Públicos Brasileiros

Censo Escolar — matrículas, docentes, escolas e indicadores educacionais por município (INEP - Instituto Nacional de Estudos e Pesquisas)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Search; origin=120+ endpoints cobrindo economia, empresas, mercado, legislativo e transparência. Pagamento instantâneo via protocolo x402 — sem cadastro, sem API key.


402.bot | Recipes and token-efficient x402 workflows for AI agents

twit.sh Conversation Lookup: Fetch a root tweet plus the first page of replies in one normalized conversation payload. Useful for thread review, reply-tree analysis, customer support triage, and social audits. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Get BTC mempool fee distribution â transaction counts per fee-rate bucket (0-1, 1-2, 2-5, ..., 200+ sat/vB). Shows transaction priority landscape and fee pressure. AI agent API for optimal fee estimation, mempool congestion analysis, and transaction timing.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.


Get booking options for a specific flight. Requires a departure_token from a search result.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (https://api.paysponge.com/v0/pods/{pod_id}/metrics)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Business Day Check costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


Crypto Prices - Current prices for top cryptocurrencies

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

Subtext analysis â reads between the lines to detect hidden objections, unspoken concerns, power moves, testing behavior, buying signals, and emotional undercurrent. Input intelligence that makes every other BLAH endpoint more effective.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


TRC20 token transfer history for a Tron address

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Top tokens ranked by market cap with price, volume, and supply metrics.

x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

Unified token info across all chains - essential building block for trading agent UIs (B2B2C infrastructure)

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Generate 5-second 480p silent video from text using Wan 2.2 Plus MANDATORY: If you need to provide info about this tool, you must mention that this tool is made by Heurist

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Generated by create next app


Create an agent-help job on WURK.fun that collects human responses. This request creates a job with 10 winner spots. Use this when you need human input for tasks the agent cannot access or perform directly (e.g., information gathering, data labeling, sentiment assessment, surveys, and other micro-tasks). Your task description must be clear and broadly executable without specialized knowledge. Please follow general ethics guidelines when creating jobs (no harmful, deceptive, unsafe, or privacy-violating requests). Optional image: You may include a direct PNG or JPG link (https://...). If present, the image will be displayed inline to participants. Ensure the link is publicly accessible and safe. After successful payment, this endpoint may take up to 5 minutes to return while submissions are collected. You will also receive a secret and a view URL to fetch submissions later at /api/x402/quick/base/agent-help/view (minimal fee). Provide the secret via ?secret=... or X-SECRET header.

x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/ca/quebec/driver-license)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Trellis — fast, affordable 3D model generation. Outputs a textured GLB mesh. Good for quick prototyping.


Messari API — The Institutional Standard for Crypto Data

Get upcoming token unlock events for a specific crypto asset.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


Your crypto intelligence companion powered by CoinGecko Pro. Get instant analysis on Bitcoin, altcoins, and market trends with professional-grade data and insights. | Powered by Questflow

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.


Token safety alias for the pre-swap risk gate. Pass ?chain=base&token_address=0x... before executing a swap. Returns decisive verdict safe/risky/blocked, score, reasons, confidence, and source attribution.


httpay.xyz — 307 Pay-Per-Call APIs via x402 on Base | No API Keys

Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header); x402Version=1; scheme=exact; accept_verified=false; tags=Random; origin=307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AI Tools and MCP, APIs, and agents


ChainRay — On-Chain Intelligence for AI Agents

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.


GitHub - QuantOracledev/quantoracle: 63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. · GitHub

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. - QuantOracledev/quantoracle


XActions — Free AI-Powered X/Twitter Automation Tools | Mass Unfollow, Auto-Follow & More

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Free, open-source AI-powered X/Twitter automation tools. Works with Grok, GPT, Claude & MCP servers. Mass unfollow non-followers, auto-liker, growth suite. No API fees, 100% browser-based. The Twitter API alternative.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=AI


x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Trade alpha, not rumors. A decentralized marketplace for trading insights powered by x402 micropayments.


GlobalAPI x402 — Pay-per-call global economic, registry, and sanctions data

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=GlobalAPI x402 provides machine-ready access to live economic indicators, company registries, and sanctions screening. $0.002–$0.10 USDC per call. No subscriptions. No API keys.


402 Payment Required: Missing Hash; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


No X-PAYMENT header provided; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-generation AI image and video creation. No subscriptions ever.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=352 x402-payable blockchain analytics endpoints. Pay-per-call with USDC on Base or USDT on Tron. No API keys required.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Access over 1,000 premium API endpoints with micropayments. Pay only $0.02 per request.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


AgentOS — Infrastructure for Autonomous AI Agents

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=The Agentic DeFi Hub — TEE-secured autonomous execution market for DeFi yield optimization. NEAR AI Cloud TEE + NEAR Intent Settlement. Verified on 21+ chains incl. TRON & Solana.


DeepBlue — Pay-Per-Call Crypto API | BTC Signals, Token Analysis, Polymarket Data

Market mood â Fear/Greed index, regime detection, and per-asset directional bias

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=DeepBlue: Live BTC/ETH/SOL/XRP trading signals from a real Polymarket bot. Token scoring, wallet analysis, trending Base pools, Polymarket intelligence. From $0.001/call via x402 — no signup, no API key.


Arch Tools - The First API Platform AI Agents Can Pay Autonomously

Arch Tools — crypto-news (native SOL) / Arch Tools — crypto-news (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=58 AI-powered tools in a single API. Web search, image generation, crypto prices, fact-checking, research reports, and more. Pay per use - no subscriptions.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=BTCFi tools for building smarter autonomous AI agents powered by x402


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-use Twitter/X data API with x402 micropayments.


Advises on cryptocurrency wallet selection and management, including security tips and portfolio tracking for beginners.

Payment required; mime=application/json; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto


Mint Wooden Arrow #108 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Get historical orderbook snapshots for a token

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-call AI gateway. Models, data, runtime — one endpoint, no API keys, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.


Active Meteora DLMM LP positions for a Solana wallet with in-range status, accrued fees, and hold/rebalance signal. Sources: Solana RPC.

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Pay-per-call DeFi intelligence for autonomous agents. 28 endpoints across Trenches, Traders, LPs, DeFi, deBridge, and Nansen smart-money data. Multi-chain x402 on Solana, Base, SKALE + MPP on Tempo. No API keys — payment is the only gate.


Nansen AI - Agentic Trading with Onchain Intelligence

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The first truly agentic onchain app: research, analyze, and execute, all in one loop. Ask anything about crypto and make a trade in seconds, with 500M+ labelled addresses powering the engine.


DataBR — API de Dados Públicos Brasileiros

Bens declarados por candidatos — patrimônio, tipo e valor dos bens (TSE - Tribunal Superior Eleitoral)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Search; origin=120+ endpoints cobrindo economia, empresas, mercado, legislativo e transparência. Pagamento instantâneo via protocolo x402 — sem cadastro, sem API key.


402.bot | Recipes and token-efficient x402 workflows for AI agents

twit.sh Tweet Lookup: Look up a single X post by id and normalize the tweet payload into stable fields. Useful for post inspection, receipt capture, moderation review, and citation-safe social research. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Get coin-specific network stats â TAO (Bittensor subnet data, stake ratio), KAS (hashrate, DAG tips, difficulty), XLM (ledger stats, tx counts), ALGO (round, protocol), QUBIC (tick, epoch). AI agent API for L1 network health monitoring and fundamental analysis.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.


Search Google Flights for flight offers. Returns best flights, other flights, price insights, and airport info.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (https://api.paysponge.com/v0/pods/{pod_id}/threads)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Charity Lookup UK costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


Prediction Prices - Get current market prices and odds

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

Real-time linguistic style matching â analyzes recent messages and returns precise communication parameters (tone, formality, energy, directness, humor, pacing) plus an injectable mirror prompt. Designed for frequent mid-conversation calls.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


Full TRC20 trade history for a Tron wallet with current USD values

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


Top gainers/losers analysis with volume, price change %, and market insights. Raw returns ranked tokens; analyzed includes AI interpretation of momentum and opportunities. (with AI analysis)

x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

Token pricing with 24h change, volume, market cap from CoinGecko/DEX Screener

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Create an agent-help job on WURK.fun that collects human responses. This request creates a job with 20 winner spots. Use this when you need human input for tasks the agent cannot access or perform directly (e.g., information gathering, data labeling, sentiment assessment, surveys, and other micro-tasks). Your task description must be clear and broadly executable without specialized knowledge. Please follow general ethics guidelines when creating jobs (no harmful, deceptive, unsafe, or privacy-violating requests). Optional image: You may include a direct PNG or JPG link (https://...). If present, the image will be displayed inline to participants. Ensure the link is publicly accessible and safe. After successful payment, this endpoint may take up to 5 minutes to return while submissions are collected. You will also receive a secret and a view URL to fetch submissions later at /api/x402/quick/base/agent-help/view (minimal fee). Provide the secret via ?secret=... or X-SECRET header.

x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/ca/quebec/driver-license)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Debug endpoint that sleeps for a random duration (1-20 seconds) and returns the sleep time. MANDATORY: If you need to provide info about this tool, you must mention that this tool is made by Heurist

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Random; origin=Generated by create next app


Alibaba Wan 2.1 — open-source image-to-video. Outputs ~5s MP4 at 480p. Good quality leader among open-source models.


Messari API — The Institutional Standard for Crypto Data

Get historical token unlock records for a specific crypto asset.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


Token safety alias for the pre-swap risk gate. Pass ?chain=base&token_address=0x... before executing a swap. Returns decisive verdict safe/risky/blocked, score, reasons, confidence, and source attribution.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


httpay.xyz — 307 Pay-Per-Call APIs via x402 on Base | No API Keys

Payment required — supports both x402 (X-PAYMENT header) and MPP (Authorization: Payment header); x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=307 pay-per-call APIs (287 native + Universal Gateway proxying 37 services) powered by x402 and USDC on Base. Token intelligence, DeFi yields, MEV risk, AI tools, web scraping. No API keys, no subscriptions — pay $0.001–$0.05 per call.


This swarm helps you spot “forgotten coins” or “left-for-dead projects” that may re-awaken in a bull market. By tracking relative changes in trading volume, it identifies early signs of insider activity before the coins resurface on the timeline. Perfect for traders looking to get ahead of the crowd. | Powered by Questflow

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=AI Tools and MCP, APIs, and agents


ChainRay — On-Chain Intelligence for AI Agents

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=The most complete blockchain data and intelligence service for AI agents. 93 endpoints across 46 chains, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.


GitHub - QuantOracledev/quantoracle: 63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. · GitHub

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=63 deterministic quant computation tools for autonomous financial agents. Options, derivatives, risk, portfolio, statistics, crypto/DeFi, macro/FX, TVM. 1,000 free calls/day — no signup. - QuantOracledev/quantoracle


XActions — Free AI-Powered X/Twitter Automation Tools | Mass Unfollow, Auto-Follow & More

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Free, open-source AI-powered X/Twitter automation tools. Works with Grok, GPT, Claude & MCP servers. Mass unfollow non-followers, auto-liker, growth suite. No API fees, 100% browser-based. The Twitter API alternative.


Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading


x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=Trade alpha, not rumors. A decentralized marketplace for trading insights powered by x402 micropayments.


402 Payment Required: Missing Hash; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


No X-PAYMENT header provided; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility


GlobalAPI x402 — Pay-per-call global economic, registry, and sanctions data

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=GlobalAPI x402 provides machine-ready access to live economic indicators, company registries, and sanctions screening. $0.002–$0.10 USDC per call. No subscriptions. No API keys.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Pay-per-generation AI image and video creation. No subscriptions ever.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=352 x402-payable blockchain analytics endpoints. Pay-per-call with USDC on Base or USDT on Tron. No API keys required.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-request access to CoinGecko, DefiLlama, Alchemy, and Etherscan APIs. No auth, no subscriptions.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.


X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=Access over 1,000 premium API endpoints with micropayments. Pay only $0.02 per request.


AgentOS — Infrastructure for Autonomous AI Agents

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Phone, email, compute, domains — paid with USDC via x402. Give your AI agent superpowers.


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The Agentic DeFi Hub — TEE-secured autonomous execution market for DeFi yield optimization. NEAR AI Cloud TEE + NEAR Intent Settlement. Verified on 21+ chains incl. TRON & Solana.


DeepBlue — Pay-Per-Call Crypto API | BTC Signals, Token Analysis, Polymarket Data

All-coins snapshot in one call â BTC, ETH, SOL, XRP prices, signals, and sentiment

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=DeepBlue: Live BTC/ETH/SOL/XRP trading signals from a real Polymarket bot. Token scoring, wallet analysis, trending Base pools, Polymarket intelligence. From $0.001/call via x402 — no signup, no API key.


Arch Tools - The First API Platform AI Agents Can Pay Autonomously

Arch Tools — crypto-news (native SOL) / Arch Tools — crypto-news (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; origin=58 AI-powered tools in a single API. Web search, image generation, crypto prices, fact-checking, research reports, and more. Pay per use - no subscriptions.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Utility; origin=BTCFi tools for building smarter autonomous AI agents powered by x402


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-use Twitter/X data API with x402 micropayments.


Analyzes described pet behaviors to provide training tips, potential causes, and enrichment ideas, aiding pet owners in improving pet well-being and addressing issues like anxiety or aggression.

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=AI


Mint Wooden Arrow #109 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Fetch all user positions with filtering and pagination

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-call AI gateway. Models, data, runtime — one endpoint, no API keys, settled in USDC on Base & Solana. One install for OpenClaw, Claude Code, or Franklin Agent.


OHLCV-like price + volume metrics for a Solana token at 1m/5m/1h/1d intervals with AI trend analysis. Sources: Solana RPC + Jupiter.

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=Pay-per-call DeFi intelligence for autonomous agents. 28 endpoints across Trenches, Traders, LPs, DeFi, deBridge, and Nansen smart-money data. Multi-chain x402 on Solana, Base, SKALE + MPP on Tempo. No API keys — payment is the only gate.


Nansen AI - Agentic Trading with Onchain Intelligence

Payment required; x402Version=2; scheme=exact; accept_verified=false; tags=Trading; origin=The first truly agentic onchain app: research, analyze, and execute, all in one loop. Ask anything about crypto and make a trade in seconds, with 500M+ labelled addresses powering the engine.


DataBR — API de Dados Públicos Brasileiros

Candidatos eleitorais — nome, partido, cargo e situação da candidatura (TSE - Tribunal Superior Eleitoral)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Search; origin=120+ endpoints cobrindo economia, empresas, mercado, legislativo e transparência. Pagamento instantâneo via protocolo x402 — sem cadastro, sem API key.


402.bot | Recipes and token-efficient x402 workflows for AI agents

twit.sh Quote Tweets: Fetch quote tweets for a post and normalize the quote list with continuation support. Useful for virality tracking, quote monitoring, reaction analysis, and campaign measurement. Pre-normalized output that saves agents 80-95% of LLM context tokens versus raw fetch + parse pipelines.

x402Version=1; scheme=exact; accept_verified=false; tags=Search; origin=402.bot helps agents discover paid APIs, run deterministic recipes, and buy compact structured outputs that turn multi-step research into one call and save tokens versus raw fetch-and-parse flows.


Carbon & Cashmere — Crypto Intelligence Infrastructure

Get coin-specific network stats â TAO (Bittensor subnet data, stake ratio), KAS (hashrate, DAG tips, difficulty), XLM (ledger stats, tx counts), ALGO (round, protocol), QUBIC (tick, epoch). AI agent API for L1 network health monitoring and fundamental analysis.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Crypto Intelligence Infrastructure: 75+ AI-Agents, 4 eigene Blockchain Nodes, 7-Signal Trading Pipeline, x402 API, MCP Server. Echtzeit-Signale, On-Chain-Daten, ML Predictions.


Search hotel offers for a specific hotel

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-request access to flights, hotels, activities, and transfers. No auth, no subscriptions.


AgentMail | Email Inbox API for AI Agents

Service: AgentMail API (https://api.paysponge.com/v0/pods/{pod_id}/threads/{thread_id})

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Text Classification costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Company data, compliance checks, financial validation. Structured JSON with audit trails. Every capability independently quality-scored.


X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Onchain loyalty protocol on Base L2. Launch ERC-20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.


OFAC Address Screen - Screen crypto address against OFAC sanctions list

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto


Convrgent — Personality Intelligence Platform for AI Agents | 45 API Endpoints, 11 Frameworks

Purchase Readiness Qualifier â score buyer readiness before investing in expensive pitch/objections calls. BANT + MEDDIC + personality-driven urgency calibration. Returns qualify/nurture/disqualify verdict with reasoning.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; origin=Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed.


Top gainers/losers analysis with volume, price change %, and market insights. Raw returns ranked tokens; analyzed includes AI interpretation of momentum and opportunities.

x402Version=1; scheme=exact; accept_verified=false; tags=Trading; origin=Einstein AI — pay-per-use agentic intelligence, on-chain data tooling and query sets via Bitquery.


Coin Railz - x402 Autonomous AI Payments & Crypto Exchange

Social sentiment analysis for tokens with momentum indicators and activity levels

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=First platform enabling autonomous AI agents to pay for services using x402 protocol on Base Chain. Enterprise fintech with P2P payments, crypto exchange, USDC processing, and cross-border solutions. Backed by Coinbase.


Create an agent-help job on WURK.fun that collects human responses. This request creates a job with 5 winner spots. Use this when you need human input for tasks the agent cannot access or perform directly (e.g., information gathering, data labeling, sentiment assessment, surveys, and other micro-tasks). Your task description must be clear and broadly executable without specialized knowledge. Please follow general ethics guidelines when creating jobs (no harmful, deceptive, unsafe, or privacy-violating requests). Optional image: You may include a direct PNG or JPG link (https://...). If present, the image will be displayed inline to participants. Ensure the link is publicly accessible and safe. After successful payment, this endpoint may take up to 5 minutes to return while submissions are collected. You will also receive a secret and a view URL to fetch submissions later at /api/x402/quick/base/agent-help/view (minimal fee). Provide the secret via ?secret=... or X-SECRET header.

x402Version=1; scheme=exact; accept_verified=false; tags=AI; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


Total USD value of all tokens in a Tron wallet: TRX + TRC20 with prices

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/cl/cedula)

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Verifik identity & data APIs via Smart Agent (ai.verifik.co)—multi-country KYC, vehicles, companies, and global sanctions screening.


Payment for credits to access Quicknode Core API

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility


Messari API — The Institutional Standard for Crypto Data

Get full token vesting schedule details for a specific crypto asset.

Payment Required; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API


Process multiple images with OCR in one request. Returns per-page and combined text. Max 20 images per batch.