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

XActions AI API â engagement:engagement-report

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.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/br/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.

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

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


AI-powered content creation powerhouse combining Sora 2 video generation, advanced web scraping, SEO optimization, and GitHub automation. Transform ideas into professional videos, research, and code. | 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.


NFT Liquidity Sniper Bot: Automated Floor-Sweeping Strategy: Build a bot that monitors NFT listings and automatically snipes underpriced assets before others can...

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

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


DYOR Knowledge Graph — Crypto Intelligence API

Semantic search over 586K+ crypto entities â find tokens, protocols, chains, investors, and people by name or meaning. Combines exact name matching with vector similarity for fuzzy discovery. Returns URIs, labels, and similarity scores | ZWING Intelligence (https://zwing.bot) â contact: v@zwing.bot, Telegram: @valery_zzz

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


Kling 1.6 Standard — reliable and affordable image animation. 5-second MP4 video at 720p 30fps.

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


Messari API — The Institutional Standard for Crypto Data

Get detailed social signal profile 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


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。


BTC and ETH market dominance % with 24h change. Key macro signal for alt rotation.

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.


Payment required for /risk/solar/forecast

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


Prediction markets data â pay 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.

Require human confirmation and platform-policy review.


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


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


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; 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.


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


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=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


Payment required; mime=application/json; x402Version=2; 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.


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

Normalize token/amount terms before comparing cost.


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

Arch Tools — web-scrape (native SOL) / Arch Tools — web-scrape (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; 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=Trading; 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.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Twitter, Reddit, and web data your AI agent can search and act on. 9 MCP tools, matching REST API. Pay per request.


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 engineering blueprints or diagrams for errors, optimizations, and compliance with standards like ISO, offering redesign suggestions for improved efficiency.

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 Raw Quartz Crystal #10 â Common Lost Gems NFT on Base Mainnet.

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


mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Pay-per-request access to Apollo, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.


List Opinion markets with filtering and sorting

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.


Deep analytics for a single Meteora DLMM pool — OHLCV, volume history, fee breakdown, bin distribution with AI verdict. 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=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.


Base YouTube likes quick endpoint. Call with url (+ optional amount), then pay the returned job pay URL.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Trading; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


DataBR — API de Dados Públicos Brasileiros

Importações brasileiras — valor CIF, peso, NCM e país de origem por período (ComexStat MDIC)

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

Messari Token Unlocks: Fetch upcoming token unlock events for one asset and normalize the release schedule. Useful for unlock watchlists, supply overhang analysis, token calendars, and market-risk briefs. 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=Crypto; 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

Multi-coin intelligence snapshot â ML signals, funding rates, OI changes, regime, volatility, and key features for up to 34 coins in a single call. Sub-50ms Redis-only. Use detail=full for 60+ features per coin. AI agent API for market screening, portfolio monitoring, and multi-asset intelligence.

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.


Count the number of flights matching a search query

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}/domains/{domain_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.


NFTs held by a wallet - collection, floor price, metadata

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=DeFi APIs for AI agents. 36 pay-per-call endpoints for token data, pricing, wallet analytics, swap routing, and on-chain workflows. Powered by x402 on Base.


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

Delete a human profile from the vault. Near-free pricing maintains consistent x402 payment flow for wallet identification.

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.


Stock Historical - Historical stock prices

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


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Age Verify 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=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.


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


Retrieve tweets by user name. Sort by created_at. Results are paginated, with each page returning up to 20 tweets. / Retrieve tweets by user name. Sort by created_at. Results are paginated, with each page returning up to 20 tweets.

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


Satoshi API - Bitcoin Fee Intelligence for Apps and AI Agents

Satoshi API Bitcoin fee-market research: deterministic answer with fee landscape, mempool projection, and internal metric citations.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Know when to send Bitcoin and when to wait. Satoshi API gives apps and AI agents live fee recommendations, mempool context, and cost estimates. Free, open source.


Check if liquidity is locked for a TRC20 token — locker identity, percentage, burn status

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


Generate 5-second 480p video WITH AUDIO from text using Wan 2.5 Preview 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


Fresh Pump.fun token launches with bonding curve progress (Solana only). (with AI analysis)

X-PAYMENT header is required; 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 property valuation using GPT-4 analysis

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; 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.


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

Whale movements and exchange flows â large transfers, exchange inflows/outflows, accumulation signals

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.


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

XActions AI API â engagement:find-influencers

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.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/br/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


Ask me LONG OR SHORT then just do it | 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.


Cross-Chain Arbitrage Detection: Multi-Network Profit Finder: Discover price discrepancies across Ethereum, Base, Arbitrum, and Solana. Learn to spot and execute ...

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


DYOR Knowledge Graph — Crypto Intelligence API

Query the DYOR crypto knowledge graph using SPARQL. Covers 586K+ entities across 8,200+ protocols, tokens, chains, investors, governance, and DeFi data from DefiLlama, CryptoRank, CoinGecko, TokenTerminal, Snapshot, and Tally. Free schema with all predicates and classes at GET /api/schema | ZWING Intelligence (https://zwing.bot) â contact: v@zwing.bot, Telegram: @valery_zzz

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


Kling 1.6 text-to-video — reliable and affordable. Outputs a 5-second MP4 at 720p 30fps.

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


Messari API — The Institutional Standard for Crypto Data

Get top crypto asset mindshare gainers over the last 24 hours.

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。


Crypto Fear and Greed Index API — real-time market sentiment indicator for Bitcoin and crypto. Contrarian trading signal based on market psychology.


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.


Payment required for /sentiment/feargreed

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


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.


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


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


Hirescrape — Pay-per-call scraper API for AI agents

payment_required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-call web scrapers for AI agents. 28 tools across Reddit, 8-board job search (LinkedIn · Indeed · Glassdoor · Google Jobs · +5), TikTok · Douyin · Bilibili, cross-platform trend research, social media, and ad libraries. No API keys. Agent wallets settle USDC on Tempo or Base via x402 + MPP.


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


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


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=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


Payment required; mime=application/json; x402Version=2; 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.


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


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.


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


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

Arch Tools — web-scrape (native SOL) / Arch Tools — web-scrape (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; 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=Trading; 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.


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Twitter, Reddit, and web data your AI agent can search and act on. 9 MCP tools, matching REST API. Pay per request.


Engrave Protocol — BTCFi Tools for Smarter AI Agents

x402Version=1; scheme=exact; accept_verified=false; tags=Search; 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.


Detects unusual spending patterns in user-submitted expense data, flagging potential fraud or budgeting issues with structured insights.

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


Mint Copper Nugget #100 â Common Sunken Bullion NFT on Base Mainnet.

Payment required; 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 Apollo, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.


Fetch historical orderbook snapshots for an Opinion market

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.


Full LP strategy brief — best Meteora DLMM pool + recommended range + expected daily fees for a given capital amount. 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=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.


Base YouTube Subscribers quick endpoint. Create a paid WURK task to gain subscribers on a YouTube channel. Provide the channel handle/URL and the number of subscribers you want; pay with USDC via x402 and the job will be created on wurk.fun for users to subscribe and submit proof.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Crypto; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


DataBR — API de Dados Públicos Brasileiros

Busca em diários oficiais municipais (Querido Diário)

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

Messari X User Details: Fetch one Messari X-user profile with stable normalized social and signal fields. Useful for creator dossiers, handle research, social scorecards, and analyst watchlists. 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

Single coin deep intelligence snapshot â ML signal, all features, derivatives, plus chain-specific data (BTC mempool, ETH beacon, Kaspa/TAO network stats). Sub-50ms from Redis. AI agent API for deep single-asset analysis, on-chain intelligence, and trading decisions.

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 the last flight for an aircraft by registration

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}/domains/{domain_id}/verify)

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.


EVM transactions for a wallet - raw transaction fields, gas data, pagination, and optional decoded calldata and logs

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=DeFi APIs for AI agents. 36 pay-per-call endpoints for token data, pricing, wallet analytics, swap routing, and on-chain workflows. Powered by x402 on Base.


Market Indices - Major market indices (S&P 500, Dow, Nasdaq)

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


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. AML Risk Score costs $0.0100 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.


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

Human Design bodygraph â energy type (Generator, Projector, Manifestor, Reflector, Manifesting Generator), strategy, authority, profile, channels, gates, centers, definition. Ra Uru Hu system, decision-making guidance.

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.


Get user verified followers in reverse chronological order (newest first). Returns exactly 20 verified followers per page, sorted by follow date. Most recent followers appear on the first page. Use cursor for pagination through the complete followers list. $0.3 per 1000 followers / Get user verified followers in reverse chronological order (newest first). Returns exactly 20 verified followers per page, sorted by follow date. Most recent followers appear on the first page. Use cursor for pagination through the complete followers list. $0.3 per 1000 followers

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.


Satoshi API - Bitcoin Fee Intelligence for Apps and AI Agents

Satoshi API stuck Bitcoin transaction rescue plan: RBF, CPFP, wait, or investigate guidance for a txid.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Know when to send Bitcoin and when to wait. Satoshi API gives apps and AI agents live fee recommendations, mempool context, and cost estimates. Free, open source.


Whale wallet movements on Tron — large transfers over $50k in TRX and USDT

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


Fresh Pump.fun token launches with bonding curve progress (Solana only).

X-PAYMENT header is required; 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

Analyze market sentiment from social/news data

X-PAYMENT header is required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=AI; 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 crypto question to Ask Heurist. Returns a job_id immediately. Use check_job_status after the recommended wait time to retrieve the result. 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


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.


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

XActions AI API â engagement:smart-target

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.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/br/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


Solana MEV Protection: Front-Running Defense Strategy: Learn how to protect your Solana trades from MEV bots and sandwich attacks using Jito bundles and pr...

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


OKX is an innovative cryptocurrency exchange with advanced financial services. We rely on blockchain technology to provide everything you need for wise trading and investment. | 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.


DYOR Knowledge Graph — Crypto Intelligence API

Query historical crypto time-series data: token prices, market caps, TVL, protocol revenue, fees, DeFi pool APY, lending rates, stablecoin supply, and treasury balances. Data from CoinGecko, DefiLlama, TokenTerminal, and CryptoRank updated daily. Free schema at GET /api/schema lists all tables and columns | ZWING Intelligence (https://zwing.bot) â contact: v@zwing.bot, Telegram: @valery_zzz

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


Lightricks LTX-2 19B — large open-source video model. Outputs ~5s MP4 at 720p. Fast and affordable.


Messari API — The Institutional Standard for Crypto Data

Get top crypto asset mindshare gainers over the last 7 days.

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。


Ethereum gas prices (slow/standard/fast) in Gwei. Useful for DeFi cost estimation.


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.


Payment required for /stablecoin/health/usdc

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


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


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


Hirescrape — Pay-per-call scraper API for AI agents

payment_required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Search; origin=Pay-per-call web scrapers for AI agents. 28 tools across Reddit, 8-board job search (LinkedIn · Indeed · Glassdoor · Google Jobs · +5), TikTok · Douyin · Bilibili, cross-platform trend research, social media, and ad libraries. No API keys. Agent wallets settle USDC on Tempo or Base via x402 + MPP.


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; 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=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


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


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.


AgentOS — Infrastructure for Autonomous AI Agents

Provision a real phone number (SMS + voice) for your agent. Body: { country: ISO-2, areaCode? }

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.


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

Arch Tools — ai-oracle (native SOL) / Arch Tools — ai-oracle (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=AI; 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.


Analyzes financial transaction data to detect potential fraud patterns, flagging suspicious activities and providing risk scores for enhanced security in banking and e-commerce.


Mint Shell Art #1000 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; 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 Apollo, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.


Fetch trading activity (merges, splits, redeems) for a user

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.


X-PAYMENT header is required; x402Version=1; 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=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.


Base Zora Comments quick endpoint. Create a paid WURK task to get comments on a Zora post. Provide a Zora /coin/<id> URL (and optional amount + optional instructions), pay with USDC via x402, and the job will be created on wurk.fun for users to comment and submit proof.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Crypto; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


DataBR — API de Dados Públicos Brasileiros

Municípios com diários oficiais indexados (Querido Diário, 510+ cidades)

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

Messari X Users Timeseries: Fetch bounded daily Messari X-user signal timeseries for one or more accounts. Useful for mindshare trends, social performance charts, creator monitoring, and campaign analysis. 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=Utility; 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

Single coin deep intelligence snapshot â ML signal, all features, derivatives, plus chain-specific data (BTC mempool, ETH beacon, Kaspa/TAO network stats). Sub-50ms from Redis. AI agent API for deep single-asset analysis, on-chain intelligence, and trading decisions.

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 historical flights from one airport to another

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}/domains/{domain_id}/zone-file)

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.


Treasury Auctions - Treasury auction results and schedules

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


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. API Health 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.


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

MBTI / 16 Personalities â personality type (INTJ, ENFP, INFJ, ENTP, etc.), cognitive function stack, extraversion/introversion, sensing/intuition, thinking/feeling, judging/perceiving dichotomies with confidence scores.

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.


Get user verified followers in reverse chronological order (newest first). Returns exactly 20 verified followers per page, sorted by follow date. Most recent followers appear on the first page. Use cursor for pagination through the complete followers list. $0.3 per 1000 followers / Get user verified followers in reverse chronological order (newest first). Returns exactly 20 verified followers per page, sorted by follow date. Most recent followers appear on the first page. Use cursor for pagination through the complete followers list. $0.3 per 1000 followers

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.


Satoshi API - Bitcoin Fee Intelligence for Apps and AI Agents

Satoshi API fee-window watch: paid start for a Bitcoin fee threshold monitor with an opaque free poll URL.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=Know when to send Bitcoin and when to wait. Satoshi API gives apps and AI agents live fee recommendations, mempool context, and cost estimates. Free, open source.


All active TRC20 token approvals for a Tron wallet with unlimited risk flags

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


Top Pump.fun tokens by volume with buyer/seller flow analysis and bonding curve position. (with AI analysis)

x402Version=1; scheme=exact; accept_verified=false; tags=AI; 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

Multi-DEX price quotes in single call - critical infrastructure for trading bot price discovery (B2B2C infrastructure)

X-PAYMENT header is required; x402Version=1; scheme=exact; accept_verified=false; tags=Trading; 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 a wallet's USDC activity summary on Base: first/last seen timestamps, total transfer count, aggregate USDC in/out and net flow. Use this for a quick financial snapshot before drilling into details. 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


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=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.


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

XActions AI API â engagement:smart-unfollow

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.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/br/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


DEX Liquidity Pool Analysis: Finding High-Yield Opportunities: Deep dive into analyzing DEX liquidity pools for yield farming. Learn to calculate real APY, assess ...

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


Comprehensive cryptocurrency monitoring system that tracks token prices, analyzes Web3 projects, and aggregates relevant news. Delivers price updates, project analysis reports, and daily crypto news directly to Telegram. | 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.


Luma Ray 2 Flash — fast image-to-video. Outputs 5s MP4 at 540p. Great for quick video generation with cinematic motion.


Messari API — The Institutional Standard for Crypto Data

Get top crypto asset mindshare losers over the last 24 hours.

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=Crypto; 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。


Recent liquidation events from CoinGlass. Long/short liquidation volumes and cascade risk.

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=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.


Payment required for /token/metadata/0x2260fac5e5542a773aa44fbcfedf7c193bc2c599

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


Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Utility; origin=DeFi APIs for AI agents. 36 pay-per-call endpoints for token data, pricing, wallet analytics, swap routing, and on-chain workflows. Powered by x402 on Base.


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


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


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; 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=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


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


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


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

Generate an i402 plan from a natural-language intent. Returns a 402 response with a list of x402 calls the agent should sign and execute.

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


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

Arch Tools — ai-oracle (native SOL) / Arch Tools — ai-oracle (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=AI; 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=Trading; 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.


Generates creative logo ideas and descriptions based on brand details, assisting designers and businesses in visual identity development.

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


Mint Iron Arrowhead #101 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; 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 Apollo, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.


Compare performance across trading style cohorts

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.


Natural language DeFi query — LLM orchestrates HYRE endpoints (trenches, traders, LPs, DeFi, deBridge) to answer in plain English. Sources: all HYRE data layers.

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.


Base Zora Followers quick endpoint. Create a paid WURK task to gain followers on a Zora profile. Provide the Zora handle/profile URL and the number of followers you want; pay with USDC via x402 and the job will be created on wurk.fun for users to follow and submit proof.

Payment required; mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=Crypto; origin=Decentralized engagement services powered by x402 micropayments. Likes, reposts, comments on X, Instagram, YouTube, and more.


DataBR — API de Dados Públicos Brasileiros

Busca de diários oficiais por tema classificado (ex: Políticas Ambientais)

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

Messari X Users: List Messari X-user signal profiles for leaderboard, account ranking, and automation workflows. Useful for social leaderboards, creator monitoring, mindshare scans, and crypto-X 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=Crypto; 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

Single coin deep intelligence snapshot â ML signal, all features, derivatives, plus chain-specific data (BTC mempool, ETH beacon, Kaspa/TAO network stats). Sub-50ms from Redis. AI agent API for deep single-asset analysis, on-chain intelligence, and trading decisions.

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 historical flight information by ident

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}/drafts)

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.


Treasury Dashboard - Fiscal health dashboard

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


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. API Mock Response 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.


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

Quick personality micro-query: single_psych_dimension â single data point, lightweight, fast personality data

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.


Satoshi API - Bitcoin Fee Intelligence for Apps and AI Agents

Satoshi API x402 Bitcoin payment health: paid-resource pricing, discovery, and recommended-path audit for agents.

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Know when to send Bitcoin and when to wait. Satoshi API gives apps and AI agents live fee recommendations, mempool context, and cost estimates. Free, open source.


All TRC20 token balances with USD values for a Tron address

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


Top Pump.fun tokens by volume with buyer/seller flow (Solana only).

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

Real-time multi-chain portfolio valuation - infrastructure for portfolio management agents (B2B2C infrastructure)

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


Aggregate a wallet's USDC activity by calendar day, returning daily transaction counts and total volume received/sent. Use to spot active vs quiet periods and unusual volume spikes. 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


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

Premium prediction markets bundle â active positions, market odds, resolution history, and edge analysis

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.


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.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/br/vehicle)

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


DeFi Yield Farming: Best APY Strategies for 2025: Discover the top yield farming protocols with sustainable APY and low risk. Includes analysis of Aav...

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


Have found pretty good Deep Research results with this prompt. Good for getting up to speed on a new company. Sharing in case it’s helpful. | 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.


Sand AI Magi (distilled) — image-to-video with excellent quality-to-cost ratio. Outputs 4-second MP4 at 720p.

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


Messari API — The Institutional Standard for Crypto Data

Get top crypto asset mindshare losers over the last 7 days.

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=Crypto; 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。


Mark price, index price, and estimated next funding rate. Query: ?symbol=BTCUSDT

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=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.


Payment required for /whale/recent/ethereum

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


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=AI


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


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


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


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.


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.


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

Arch Tools — convert-format (native SOL) / Arch Tools — convert-format (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; 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=Utility; 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.


Generates logo design concepts with descriptions, color schemes, and style suggestions based on brand identity.

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


Mint Iron Arrowhead #102 â Common Shadow Arsenal NFT on Base Mainnet.

Payment required; 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 Apollo, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.


List Polymarket events with filtering and sorting

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.


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

Temas de classificação automática de diários oficiais (IA/NLP)

mime=application/json; x402Version=2; scheme=exact; accept_verified=true; tags=AI; 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 Apollo Org Search: Search organizations through StableEnrich with allowlisted Apollo filters. Useful for provider research, company discovery, prospecting, and B2B enrichment workflows. 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

Single coin deep intelligence snapshot â ML signal, all features, derivatives, plus chain-specific data (BTC mempool, ETH beacon, Kaspa/TAO network stats). Sub-50ms from Redis. AI agent API for deep single-asset analysis, on-chain intelligence, and trading decisions.

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 a historical flight map payload (proxied from FlightAware)

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.


Create an agent-help job on WURK.fun that collects human responses. This request creates a job with 100 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})

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.


US National Debt - US national debt levels and trends

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


Strale — Trust and Quality Infrastructure for AI Agents

Payment required. Approval Security Check costs $0.0050 USDC per call.; x402Version=1; scheme=exact; accept_verified=false; tags=Crypto; 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

Numerology profile â Life Path, Birthday Number, Personal Year/Month, Expression (Pythagorean), Soul Urge, Personality numbers, Chaldean name analysis, karmic debts. Pure mathematical personality system from birth date and name.

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


Top profitable wallets on Tron last 24h -- copy trade targets

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


Leaderboard of top trader wallets with buy/sell flow analysis and accumulation patterns.

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

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

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.


Report hourly USDC transfer activity between two specific addresses, showing volume in each direction (A→B and B→A) per hour. Use to analyze flow intensity between suspected related 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


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

Whale movements and exchange flows â large transfers, exchange inflows/outflows, accumulation signals

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.


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

XActions AI API â monitor:track-engagement

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.


Service: Verifik AI (https://verifik.x402.paysponge.com/v2/br/vehicle)

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


Base L2 Gas Optimization: Save 80% on Transaction Fees: Master gas optimization on Base L2 - timing strategies, batch transactions, and smart contract patte...

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


Transform any image with simple text prompts. Nano-banana's advanced model delivers consistent character editing and scene preservation that surpasses Flux Kontext. Experience the future of AI image editing. | 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.


MiniMax Image-01 — fastest and cheapest image generation. Outputs 1024x1024 PNG. Great for bulk generation and prototyping.

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


Messari API — The Institutional Standard for Crypto Data

Get daily 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=Crypto; 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。


Crypto market summary API — top movers, volume leaders, BTC dominance, total market cap, and sector rotation. Real-time market overview for crypto trading desks.


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=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.


Satoshi API - Bitcoin Fee Intelligence for Apps and AI Agents

mime=application/json; x402Version=2; scheme=exact; accept_verified=false; tags=Crypto; origin=Know when to send Bitcoin and when to wait. Satoshi API gives apps and AI agents live fee recommendations, mempool context, and cost estimates. Free, open source.


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=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


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


Payment required; mime=application/json; x402Version=2; 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=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=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.


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.


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

Arch Tools — convert-format (native SOL) / Arch Tools — convert-format (USDT on Base)

X-PAYMENT-REQUIRED; x402Version=1; scheme=exact; accept_verified=false; tags=Utility; 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=Search; 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.


Generates customized Non-Disclosure Agreements based on user inputs, ensuring compliance with jurisdiction-specific laws for business and personal use.


Mint Iron Arrowhead #103 â Common Shadow Arsenal NFT on Base Mainnet.

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


List Polymarket events with cursor-based keyset pagination

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

DOU - Diário Oficial da União — busca textual em atos, portarias, decretos e nomeações do governo federal

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.