Official docs, SDKs, server frameworks, production deployments, examples and tools for the x402 protocol, grouped by the original list sections with source links.
The upstream list is released under CC0 1.0 public domain; every record keeps its original link.
Download full JSON (781 rows) Back to free data
| name | url | section | description |
|---|---|---|---|
| Octodamus | https://api.octodamus.com | Contents | AI market-intelligence API for agents. 33 pay-per-call x402 endpoints on Base ($0.01–$0.02, USDC, no keys): cross-venue… |
| x402 Protocol Specification | https://github.com/coinbase/x402 | 📚 Official Resources | Official open-source protocol implementation by Coinbase. |
| x402 Foundation | https://x402.org | 📚 Official Resources | Protocol foundation website with overview and documentation. |
| x402 Whitepaper | https://x402.org/x402-whitepaper.pdf | 📚 Official Resources | Technical deep dive into protocol architecture. |
| Coinbase Developer Platform Docs | https://docs.cdp.coinbase.com/x402 | 📚 Official Resources | Complete implementation guide and API reference. |
| Protocol Specifications | https://github.com/coinbase/x402/tree/main/specs | 📚 Official Resources | Detailed technical specifications. |
| Payment Schemes | https://github.com/coinbase/x402/tree/main/spec… | 📚 Official Resources | Different payment flow types. |
| EVM Implementation | https://github.com/coinbase/x402/blob/main/spec… | 📚 Official Resources | Ethereum Virtual Machine specifics. |
| How x402 Works | https://docs.cdp.coinbase.com/x402/how-it-works | 📖 Protocol Documentation | Complete payment flow explanation with diagrams. |
| Payment Requirements Schema | https://github.com/coinbase/x402#payment-requir… | 📖 Protocol Documentation | JSON structure for payment requests. |
| Payment Payload Format | https://github.com/coinbase/x402#payment-payload | 📖 Protocol Documentation | Client payment submission format. |
| Verification & Settlement | https://github.com/coinbase/x402#verification-a… | 📖 Protocol Documentation | Payment validation process. |
| EIP-3009 TransferWithAuthorization | https://eips.ethereum.org/EIPS/eip-3009 | 📖 Protocol Documentation | Gasless transfer standard used by x402. |
| HTTP 402 Status Code | https://developer.mozilla.org/en-US/docs/Web/HT… | 📖 Protocol Documentation | The long-dormant HTTP status. |
| Buyer/Client Setup | https://docs.cdp.coinbase.com/x402/quickstart-b… | 🚀 Quickstart Guides | Make automated payments. |
| One-Line Integration | https://github.com/coinbase/x402/tree/main/exam… | 🚀 Quickstart Guides | Add payment middleware in a single line of code. |
| Base Sepolia Testnet Setup | https://docs.cdp.coinbase.com/x402/network-supp… | 🚀 Quickstart Guides | Get test USDC and start testing. |
| coinbase/x402 | https://github.com/coinbase/x402/tree/main/go | Go | ⭐ Official - Complete Go implementation. |
| x402-typescript | https://github.com/coinbase/x402/tree/main/type… | TypeScript/JavaScript | ⭐ Official - Complete TypeScript implementation. |
| x402-data-api | https://github.com/155143783/x402-data-api | TypeScript/JavaScript | HTTP 402 micro-payment data API with Base chain USDC payments. 16 developer data tools including email validation, DNS … |
| x402-express | https://github.com/coinbase/x402/tree/main/exam… | TypeScript/JavaScript | Express.js middleware example. |
| hive-rosetta | https://www.npmjs.com/package/hive-rosetta | TypeScript/JavaScript | ⭐ Community - Open EIP-3009 transferWithAuthorization signer. Zero ethers/web3 dependency, primitives-only EIP-712. Ret… |
| x402 | https://pypi.org/project/x402/ | Python | ⭐ Official - Python SDK on PyPI. |
| ag402 | https://github.com/AetherCore-Dev/ag402 | Python | ⭐ Community - Payment layer for AI agents using x402. Wrap any API or MCP server with a USDC paywall (ag402 serve), or … |
| x402-pay | https://pypi.org/project/x402-pay/ | Python | Call any x402 API with one API key. Routes requests through a broker that handles on-chain payment. httpx-based, option… |
| hive-rosetta | https://pypi.org/project/hive-rosetta/ | Python | ⭐ Community - Direct port of the Node hive-rosetta signer. Byte-identical EIP-712 digest across both languages. Returns… |
| x402-rs | https://github.com/x402-rs/x402-rs | Rust | ⭐ Community - Production-grade Rust implementation. |
| AfaAgent x402 API Suite | https://afaagent-x402-api.storm-fly.workers.dev | 🏭 Production Implementations | 43 production-grade x402 APIs (DeFi, wallet security, AI/ML, developer tools, SEO) with pay-per-call USDC micropayments… |
| Langston Search | https://langston.click/api/search | 🏭 Production Implementations | Autonomous AI agent's pay-per-query web search API (Brave, falls back to SerpAPI), live on Solana mainnet. 0.02 USDC pe… |
| Kaisha — Japan Company Registry API | https://kaisha-api.hp-vladic.workers.dev | High-Volume Production Deployments | Official-registry data for all 5.76M Japanese corporations + 5.05M invoice registrations from National Tax Agency open … |
| MoneyMachine x402 Suite | https://github.com/itsmeadamdamroma/money-machi… | High-Volume Production Deployments | Agent-payable APIs on Base USDC: GigRadar (Superteam/r/forhire/HN/Freelancer gigs $0.15), LightHouse-lite web vitals ($… |
| J-sey Data API | https://jsey.dpdns.org | High-Volume Production Deployments | Pay-per-call data API on Base with 18 endpoints for wallet lookups, web scraping, crypto prices, and DeFi yields; $0.00… |
| Fleet x402 Microservices | https://fleet-x402-audit.fly.dev | High-Volume Production Deployments | Two agent-payable AI services on Base: SEO Audit ($0.05 USDC) and Competitive Intel Pack ($0.50 USDC). Instant response… |
| Arch Tools | https://archtools.dev | High-Volume Production Deployments | 58 production API tools for AI agents with x402 payments built in. Web scraping, AI generation, crypto data, OCR, brows… |
| Bounty API | https://bountyapi.com | High-Volume Production Deployments | Agent-native API marketplace with x402 micropayments. 7 live endpoints. Free + paid ($0.005-0.01 USDC on Base). MCP: np… |
| PayAPI Market | https://payapi.market | High-Volume Production Deployments | First marketplace for x402-powered APIs. 10 APIs, 65 endpoints: UK property data, email verification, company enrichmen… |
| LogicNodes | https://logicnodes.io | High-Volume Production Deployments | Live A2A marketplace with 619 deterministic microservices payable per-call in USDC. No signup — agents pay via x402, re… |
| JarvisClaw | https://api.jarvisclaw.ai | High-Volume Production Deployments | x402 payment gateway bridging 200+ LLM providers (OpenAI, Anthropic, Google, DeepSeek, etc.) to on-chain USDC micropaym… |
| Superhighway | https://superhighway.walls.sh | High-Volume Production Deployments | Web search API for AI agents, live in production on Base mainnet. Five tools: search, news, images, scrape, and one-cal… |
| Rug Munch Intelligence | https://x402.rugmunch.io | High-Volume Production Deployments | 117 MCP tools + 19 REST API endpoints for crypto data: DexScreener, Birdeye, GMGN, Arkham, Nansen, Dune, Jupiter, DeFiL… |
| AIsa | https://aisa.network | High-Volume Production Deployments | Leading x402 payment processor with 10.5M+ cumulative transactions on the x402 network, demonstrating massive productio… |
| Bitget | https://www.bitget.com | High-Volume Production Deployments | Major cryptocurrency exchange integrating x402 for seamless payment flows, enabling instant settlements and gasless tra… |
| AI Rook — Trading Intelligence + General Agent APIs | https://agents.ai-rook.com | High-Volume Production Deployments | 22 endpoints across 4 categories: trading intelligence (market pulse, trade signals, order flow, liquidation heatmap, A… |
| Stratalize | https://www.stratalize.com | High-Volume Production Deployments | 100+ attested financial, healthcare, real estate, and governance intelligence tools with x402 micropayments on Base. Ed… |
| Coinbase Developer Platform | https://coinbase.com/developer-platform | High-Volume Production Deployments | Official CDP implementation processing hundreds of thousands of transactions weekly with enterprise-grade reliability a… |
| Cloudflare Workers | https://workers.cloudflare.com | High-Volume Production Deployments | Edge computing platform with x402 integration serving global distributed payment verification at scale across 300+ data… |
| GigSoul AI Research Agent | https://gig-x402-api.jayson-be1.workers.dev | High-Volume Production Deployments | 23-endpoint AI research API for consultants: SEC filings, earnings calls, competitor analysis, market research, and doc… |
| Zuluworks AI — Sovereign Shaka PQC-Shield Factory | https://api.zuluworksai.com | High-Volume Production Deployments | Autonomous A2A factory on Cloudflare Workers selling 5 post-quantum-hardened agent services via x402 USDC on Base L2: q… |
| Satelink RPC | https://rpc.satelink.network | High-Volume Production Deployments | Pay-per-call blockchain RPC for agents: one $0.10 USDC settlement on Base buys a 1,000-call Polygon JSON-RPC bundle — n… |
| Agent402 | https://agent402.tools | High-Volume Production Deployments | Open-source, self-hostable x402 + MCP server with ~1,100 deterministic web tools: browser rendering, web search, PDF/im… |
| Asset Forge | https://asset-forge-hire.vercel.app/ | High-Volume Production Deployments | Vercel-serverless micro-API for AI agents that returns SVG OG cards, robots.txt + sitemap.xml + llms.txt bundles, initi… |
| Tollbooth | https://agenttoll.dev | High-Volume Production Deployments | 37 paid x402 MCP tools: OSINT feeds (SEC 8-K, FRED, GDELT, flights, quakes, air quality, GitHub trending, HN), predicti… |
| GoldBean API | https://goldbean-api.xyz | High-Volume Production Deployments | 146+ AI endpoints including Baidu OCR, Translation, TTS, LLM Chat with x402 micropayments on Base. From ### Production … |
| Signal Oracle | https://oracles-production.up.railway.app | High-Volume Production Deployments | 360 agent-payable change-intelligence feeds on Base: DepWatch (breaking-change verdicts for any npm/PyPI/Maven/crates/R… |
| Tollbooth | https://x402toll.com | High-Volume Production Deployments | 56 verified financial, tax & legal calculators for AI agents (net-pay, federal/state income tax, self-employment & esti… |
| MIDAX402 | https://midax402.com | High-Volume Production Deployments | Pay-per-query semantic search over 300+ curated x402 ecosystem entries: protocol mechanics, facilitators, ERC-8004, and… |
| Yield.xyz AgentKit | https://mcp.yield.xyz/mcp | High-Volume Production Deployments | MCP server for DeFi yield discovery & execution across 80+ networks (staking, lending, vaults, RWAs); 2,988+ opportunit… |
| ToolSnap MCP | https://mcp.toolsnap.app | High-Volume Production Deployments | 28 context-efficient MCP tools for AI agents: web extraction, data processing, SEO, image processing. Flagship fetchext… |
| Veles Finance Agent | https://veles-finance-gateway.fly.dev | High-Volume Production Deployments | Production FastAPI + LangGraph financial analysis service with x402 paywall on Base. Provides SEC 10-K extraction, stoc… |
| Denpyo — Japan Invoice & Receipt Reader | https://denpyo-api.hp-vladic.workers.dev | High-Volume Production Deployments | OCR Japanese invoices (請求書) and receipts (領収書) into structured JSON — vendor, line items, 8%/10% consumption-tax breakd… |
| BridgeNode | https://bridgenode.cc | High-Volume Production Deployments | DeepSeek V4 Flash v2 inference via x402 on Solana. No registration, no API keys. Per-call pricing at $0.001 USDC via pr… |
| Appraxa IP Valuation | https://api.appraxa.com/v1/info | High-Volume Production Deployments | Standards-based patent valuation (DIN 77100 relief-from-royalty), calibrated on professional valuation cases. From $0.9… |
| Venture NL Open-Data | https://api.pogo-tb.nl | High-Volume Production Deployments | Dutch government open-data API for AI agents: RDW vehicle records (kenteken lookup), BAG addresses and postcode bulk lo… |
| mdapi | https://md.fastdb.in | High-Volume Production Deployments | HTML-to-Markdown API for AI agents: POST a URL or raw HTML, get clean LLM-ready Markdown (Readability article extractio… |
| chainpulse | https://md.fastdb.in/pulse/ | High-Volume Production Deployments | Real-time crypto market data API for AI agents: POST /price (aggregated USD spot prices with confidence score, incl. Ba… |
| Lazaretto | https://lazaretto.dev | High-Volume Production Deployments | Pre-install security verification for AI agent skills, tools, and npm packages. Free, no-key lockfile check: POST a pac… |
| Utilia Solana Preflight | https://utilia.ink | High-Volume Production Deployments | Deterministic Solana transaction simulation, confirmed-transaction diagnostics, priority-fee, and SPL token-risk APIs p… |
| SuVerse Pay | https://suverse-pay.suverse.io | High-Volume Production Deployments | Payment gateway + API catalog with ~490 paid endpoints on one origin: crypto market data, Polymarket smart-money verdic… |
| Studio X | https://www.studio-x.cc | High-Volume Production Deployments | Production image and video generation API with 11 models, per-generation x402 pricing, and USDC settlement on Base. (Op… |
| API Witchcraft (API_Dalla) | https://apiwitchcraft.duckdns.org | Data & Social APIs | 19 hands-off pay-per-call APIs for AI agents, settling USDC on Base via Coinbase CDP Facilitator. Covers compliance (VA… |
| KR-DART Events | https://dartapi.ljaysk.com | Data & Social APIs | Real-time Korean corporate disclosure (DART) events for AI agents. Korea's ~2,500 daily filings polled every 15s, class… |
| Tinstop Website Intelligence API | https://tinstop.com | Data & Social APIs | Pay-per-call domain security and performance audits on Base: DNS, SSL/TLS, HTTP security headers, SPF/DKIM/DMARC, and P… |
| x402-seller | https://x402-seller-m8nx.onrender.com | Data & Social APIs | Decision-ready crypto market + on-chain intelligence for AI agents. 13 keyless pay-per-call endpoints on Base mainnet (… |
| Sirenic | https://api.sirenic.eu | Data & Social APIs | Official French & European company data for AI agents, from open government sources (INSEE/INPI, Etalab 2.0). Search 30… |
| Agent Utility API | https://agent-api-production-169b.up.railway.app | Data & Social APIs | 8 pay-per-call utility tools for AI agents in USDC on Base via x402 (CDP facilitator), served over both HTTP and MCP: c… |
| afriref / latamref / asiaref / euroref / usaref / ausref | https://afriref.dev | Data & Social APIs | Verified government reference data for 58 countries across six continent-scoped brands on one engine: central-bank poli… |
| ZARONIA Verify | https://api.zaroniacalculator.co.za | Data & Social APIs | Independent, audit-grade recomputation of South African ZARONIA-linked FRN and money-market coupons against the SARB Co… |
| WebIntel | https://x402.omardev.xyz | Data & Social APIs | EU/NL-focused web & business intelligence for AI agents on Base. 10 pay-per-call endpoints ($0.005–$0.25): page-to-mark… |
| PARADIGMA Crypto Feed | https://opportunity-api-production.up.railway.a… | Data & Social APIs | 26 pay-per-call crypto data endpoints for AI agents: scored airdrop/quest opportunities (Galxe), trending tokens, spot … |
| base-token-intel | https://base-token-intel.onrender.com | Data & Social APIs | Pay-per-call Base L2 token intelligence for trading agents: newly created DEX pools (Uniswap v2/v3, Aerodrome) with liq… |
| Voda Astro Data API | https://astro.dutchdata.io | Data & Social APIs | Astrology full charts, transit/mundane aspect time series, and global location data for AI agents. Flat $0.50 per reque… |
| NIMATRON COT | https://api.nimatron.com/free/cot/catalog | Data & Social APIs | CFTC Commitment of Traders positioning across all 438 futures markets (disaggregated + TFF): trader-category breakdowns… |
| enrich-gate | https://enrich-gate.vercel.app | Data & Social APIs | Pay-per-call gateway for AI agents: Google web search ($0.01), Exa neural search ($0.012), Firecrawl URL→markdown scrap… |
| GAUGE — Verifiable Environmental Signals | https://aeml-x402.zeabur.app/ | Data & Social APIs | Flood-risk & river-anomaly checks for AI agents on Base. Real-time US river water level (gage height), streamflow & flo… |
| SNTL — Helium Intelligence | https://a2a.sntl.site | Data & Social APIs | Live x402 agent for real-time Helium/Solana DePIN threat classification, anomaly scoring, wallet intelligence & forensi… |
| x402-endpoints | https://x402-endpoints.onrender.com | Data & Social APIs | 40 pay-per-call x402 endpoints for AI agents on Base/USDC: official EU/global registries (GLEIF LEI, VIES VAT, UK Compa… |
| botsmith | https://x402.botsmith.dev | Data & Social APIs | Pay-per-call web and on-chain intelligence for AI agents, no API keys. read (any URL to clean, boilerplate-free markdow… |
| TerraDeed Scrape API | https://api.terradeed.co.uk | Data & Social APIs | Pay-per-use web scraping and structured JSON extraction. $0.01/$0.05 USDC on Base mainnet. LLM-ready markdown, JS rende… |
| EZ-Path | https://ezpath.myezverse.xyz | Data & Social APIs | Best-execution pay-per-request DEX meta-router. Races 10+ venues (0x, ParaSwap, Aerodrome, Uniswap V3, Curve, Balancer,… |
| Sentinel Intelligence API | https://sentinel-intelligence-api.onrender.com | Data & Social APIs | Pay-per-brief fintech and AI governance intelligence. BNPL/embedded finance and AI compliance research briefs at $2 USD… |
| x402deploy | https://x402deploy.vercel.app | Data & Social APIs | Two pay-per-call tools for AI agents on Base mainnet: websearch ($0.005, organic web results as JSON) and readurl ($0.0… |
| CrowdPull public-data API | https://crowdpull.click | Data & Social APIs | Capped public-data jobs for AI agents: marketplace leads, rental comps, product reviews, hiring signals, and row enrich… |
| Groundcheck | https://groundcheck.seiche.info | Data & Social APIs | Claim grounding and delivery attestation for AI agents: machine-verified verdicts (supported/refuted/unverified) with c… |
| OSF — Open Source Filings | https://osf-master-server.com | Data & Social APIs | Provenance-stamped public-domain US government and scientific data for AI agents. SEC EDGAR, FRED, NOAA, openFDA, USGS,… |
| Touchstone | https://touchstone.locomot.io | Data & Social APIs | A deterministic-truth suite for AI agents: 14 pay-per-call endpoints whose answers reproduce a named public authority b… |
| AI Growth | https://kjtirbnxxymeumycrhqv.supabase.co/functi… | Data & Social APIs | Real-data feeds for AI agents, settling via Coinbase CDP Facilitator on Base mainnet. Three pay-per-call products with … |
| MiroShark | https://github.com/aaronjmars/MiroShark | Data & Social APIs | Universal swarm-intelligence engine exposed as a paid API: POST a scenario to the /x402/run surface and hundreds of gro… |
| wrapper-agency APIs | https://fx.wrapper-agency.com | Data & Social APIs | Suite of 8 pay-per-call utility APIs settled in USDC on Base via x402 (free tier + one key for all): historical FX rate… |
| Crest x402 Data | https://data.crestsystems.ai | Data & Social APIs | x402 agent profiling plus crypto market data. Profile any x402 buyer or EVM wallet (whale score, behavior cluster, x402… |
| Pyrimid | https://pyrimid.ai | Data & Social APIs | Agent commerce protocol for x402-style USDC payments on Base. Includes on-chain vendor/product registry, payment router… |
| Bismuth | https://usebismuth.com | Data & Social APIs | Utility API suite for AI agents on x402. 7 pay-per-call services on Base mainnet, no API keys, no signup: Bismuth Scrap… |
| Aigregator | https://x402.aigregator.com | Data & Social APIs | Structured data on 5,336+ AI tools via REST API and MCP server. Search, compare, and retrieve tool profiles. USDC micro… |
| Xquik | https://xquik.com | Data & Social APIs | Real-time X (Twitter) data API with 7 MPP/x402 pay-per-use endpoints — tweet lookup, tweet search, user lookup, followe… |
| AgentBodega | https://agentbodega.store | Data & Social APIs | Agent-ready paid API shelf with 51 x402-payable public-data, social-media, cloud/status, domain, artifact, launch-readi… |
| glim.sh | https://glim.sh | Data & Social APIs | Live data from Twitter, Reddit, the web, GitHub, Amazon, and YouTube for AI agents. 11 MCP tools, $0.002-$0.015 USDC pe… |
| agentsvc.io | https://agentsvc.io | Data & Social APIs | 20 utility tools for AI agents via x402 USDC micropayments on Base. Tools: ip-lookup, dns-lookup, qr-code, exchange-rat… |
| x402 Vending Machine | https://vending-machine-seven.vercel.app | Data & Social APIs | Base mainnet USDC bundler hub for AI agents (x402 V2 + Coinbase CDP): ~19 pay-per-call tools including multi-step packs… |
| AgentData API | https://agentdata-api.com | Data & Social APIs | Real-time crypto market data for AI agents. 16 pay-per-request endpoints on Base Mainnet: prices, funding rates, volati… |
| x402 Finance API | https://x402-paid-api.x402-finance.workers.dev | Data & Social APIs | Live crypto market data (BTC/ETH/SOL at $0.002 USDC) + Token Safety analysis (honeypot/liquidity/ownership at $0.05 USD… |
| DripMetrics | https://dripmetrics.ai | Data & Social APIs | Crypto market microstructure and options metrics for AI agents: VPIN, Kyle's lambda, roll spread, order-flow imbalance,… |
| Stakao Agent Allocation Analysis | https://api.stakao.com/agent | Data & Social APIs | Informational Bittensor allocation analysis API for AI agents, paid with x402 v2 USDC on Base. Supports walletless mode… |
| GPT55 x402 Wallet Safety and Merchant Readiness | https://gpt55.558686.xyz | Data & Social APIs | x402-paid agent gateway for AI buyers that need wallet signing safety, EIP-712/Permit2 risk decoding, EVM transaction r… |
| Fly Labs Agentic Market | https://flylabs.fun/agents | Data & Social APIs | YouTube data APIs for AI agents, paid in USDC on Base. Two endpoints live: POST /api/agents/transcribe ($0.03) returns … |
| NicheData KDP Intelligence | https://nichedata.dev | Data & Social APIs | Niche demand and competition intelligence for Kindle Direct Publishing authors. AI agents query keyword-level data incl… |
| AIServices | https://api.aiservices.to | Data & Social APIs | 16-endpoint crypto and market intelligence API for AI agents. 11 free endpoints (prices, trending, global market cap, g… |
| Intelica | https://api.intelica.dev | Data & Social APIs | Competitive intelligence API for autonomous AI agents. Analyzes any URL or company description and returns structured J… |
| PulseNetwork | https://pulsenetwork.theaslangroupllc.com | Data & Social APIs | 75 pay-per-call intelligence APIs (930+ endpoints) for AI agents under one federated catalog: token-safety verdicts acr… |
| DevDrops | https://devdrops.run | Data & Social APIs | 22 pay-per-query data APIs for AI agents — prediction markets (Polymarket + Manifold), property intelligence, sports od… |
| Verification Oracle | https://agent-business.142.93.127.153.sslip.io | Data & Social APIs | Independent verification of agent work products — citation-support checks and data/schema validation returning wallet-s… |
| Regression Incoming — NFL Fantasy Rankings | https://api.regressionincoming.fyi | Data & Social APIs | Model-driven 2026 NFL preseason fantasy football rankings for AI agents. 5 x402-protected endpoints on Base mainnet: GE… |
| Darrylbots x402 Research | https://tryponcho.com/m/darrylbots.com | Data & Social APIs | Agent-readable paid JSON research endpoints on Base USDC: stock-screen reports plus Polymarket/trading-agent analysis w… |
| agentdata-nl | https://agentdata-api.sander-van-aard.workers.d… | Data & Social APIs | European company screening for AI agents, straight from official public registers: company registers (UK, FR, NO, CH, C… |
| WebberSites x402 Data API | https://x402.webbersites.com | Data & Social APIs | 41 pay-per-call endpoints for AI agents, all $0.001–$0.009 USDC on Base via CDP facilitator: web scraping, document ext… |
| StillOS Notary | https://nolawealthfinancial.com/notary | Data & Social APIs | Signed, fail-closed trust & verification primitives for agent-to-agent commerce. agent-clearance is the counterparty cr… |
| Anicca Compute Primitives | https://aniccanomac-mini-1.tail7a0ba4.ts.net | Data & Social APIs | 31 pay-per-call tools for AI agents spanning financial calculators, trading and risk signals, data utilities, and web r… |
| Social Intel | https://socialintel.dev | Data & Social APIs | Instagram influencer search API for AI agents. Search by niche, country, demographics, or follower count → returns user… |
| GlobalAPI | https://globalapi.dev | Data & Social APIs | Compliance and macro-economics API hub for AI agents across 43 endpoints. Crypto wallet sanctions screening checks any … |
| The Bot Wire | https://thebotwire.com | Data & Social APIs | Real-time news wire for AI agents: 40 curated sources (markets, crypto, tech, world, business, energy) refreshed every … |
| Sivut Public x402 Data APIs | https://pay.sivut.co | Data & Social APIs | Public page markdown conversion and x402 seller intelligence endpoints for AI agents, paid in USDC on Base via x402. Pr… |
| LoneStarOracle | https://lonestaroracle.xyz | Data & Social APIs | 39 x402-gated AI data services on Base: token forensics (TokenScope), smart contract audits (RattlerAI/CottonmouthAI/Co… |
| TOUGH LOVE SECURITY ImageGen | https://toughlovesec.win/imagegen | Data & Social APIs | Pay-per-image AI generation powered by Cloudflare Workers AI (Stable Diffusion XL Lightning + Flux-1-Schnell). Three ti… |
| QueryLines | https://querylines.com | Data & Social APIs | Surplus lines market data, per query. U.S. excess & surplus (E&S) insurance premium and policy-count statistics from st… |
| TOUGH LOVE SECURITY ClawWork | https://toughlovesec.win/work | Data & Social APIs | Instant AI labor marketplace with three tiers: $5 quick polish (90s turnaround), $25 deep brief (1.5K-3K word structure… |
| TOUGH LOVE SECURITY Contract Risk Score | https://toughlovesec.win/api/contract-risk-score | Data & Social APIs | Smart contract risk scoring API for DeFi devs. Scores Ethereum / Base / Arbitrum / Optimism contracts across 10 risk ca… |
| GLHFDD | https://199-119-137-189.nip.io | Data & Social APIs | AI-powered text analysis, code analysis, and data transformation APIs built by a self-hosted AI agent. Pay-per-call via… |
| Deepnets | https://api.deepnets.ai | Data & Social APIs | Solana token intelligence: safety analysis, deep wallet-funding-network mapping, holder breakdowns, social/Twitter rese… |
| OnChain Token Safety (wick.pics) | https://onchain.wick.pics | Data & Social APIs | Multi-chain token-safety verdicts for AI agents: rug/honeypot verdict (0–100 + evidence), live sell-simulation, ownersh… |
| OpenPulsechain | https://safety.openpulsechain.com | Data & Social APIs | PulseChain blockchain analytics API with 28 x402-paid endpoints: token safety scores (0-100), opportunity signals, whal… |
| DataFood (TOUGH LOVE SECURITY) | https://toughlovesec.win/agent-mesh | Data & Social APIs | Universal data hub for AI agents — 17 cross-niche sources (crypto prices, ETH gas, weather, news, HN, GitHub trending, … |
| x402 Trust Oracle | https://x402oracle.com | Data & Social APIs | Pre-trade trust check for autonomous trading agents before paying market data, oracle, price signal, funding data, or e… |
| Askew | https://x402.askew.network | Data & Social APIs | Security and DeFi intelligence for AI agents. 5 pay-per-call endpoints on Base mainnet: /yields ($0.002, live APY acros… |
| BitBooth | https://app.heinrichstech.com/bazaar.json | Data & Social APIs | 6 utility, content, and security endpoints for AI agents on Base mainnet, settling via Coinbase CDP Facilitator. Tools:… |
| EconDash | https://econdash.org | Data & Social APIs | Global macroeconomic data API for AI agents: 753 indicators across 298 countries (World Bank, FRED, OECD). 15 x402-prot… |
| ShadowQuant Intelligence | https://sq-intel-x402.aries-lao.workers.dev | Data & Social APIs | Validated equities/options market research for AI agents: volatility regime (VIX term structure, cross-asset ratios), o… |
| anchor-x402 | https://anchor-x402.com | Data & Social APIs | 16 x402-paid services for AI agents on Base + Solana mainnet. 9 commodity primitives (OFAC sanctions screen, bundled wa… |
| romefeller.app | https://romefeller.app | Data & Social APIs | Document intelligence API: scrub PII (email, CPF, CNPJ, phones, API keys), verify document completeness, assess risk, a… |
| QuantOracle | https://api.quantoracle.dev | Data & Social APIs | 73 deterministic quant finance endpoints for AI agents: Black-Scholes pricing with full Greeks, Kelly Criterion, Monte … |
| krewe | https://www.krewe.world | Data & Social APIs | Decentralized AI inference network on Base. Each /v2/predict call is fanned out to 3 independent miner nodes; 2-of-3 by… |
| x402 inference gateway | https://agent-production-1daa.up.railway.app | Data & Social APIs | OpenAI-compatible LLM chat completions for AI agents, paid per request in USDC on Base mainnet via the Coinbase CDP fac… |
| SolProbe | https://api.solprobe.xyz | Data & Social APIs | Solana token risk scanner for AI agents with four pay-per-request endpoints settling USDC on Base or Solana mainnet at … |
| SolSigs ProofGuard | https://solsigs.com/proofguard | Data & Social APIs | Post-payment trust and refund-evidence layer for AI agents using x402 endpoints. /proofguard/evaluate returns decision … |
| Usenami | https://agentic.market/services/api-usenami-io | Data & Social APIs | Multi-venue perp funding & RWA spread API for arb-aware AI agents. 6 pay-per-call endpoints on Base mainnet ($0.001–$0.… |
| melis.ai x402 Tools | https://agents.melis.ai | Data & Social APIs | 23 audit-verified pay-per-call utility endpoints for AI agents, settling in USDC on Base via Coinbase CDP Facilitator. … |
| Base Capital | https://base-capital.vercel.app | Data & Social APIs | Autonomous x402 on-chain risk-intelligence API for AI trading agents on Base. Token risk scores and risk-ranked trendin… |
| x402agent.no | https://x402agent.no | Data & Social APIs | Norway's AI agent API gateway — 7 live services, 23 endpoints covering Norwegian company registers (500K+ companies fro… |
| dotrockets Agent Tools | https://x402.dotrockets.com | Data & Social APIs | Multi-tool x402 hub for AI agents (5 endpoints, $0.02–$0.10 USDC on Base mainnet, x402 v1+v2, no API keys or signup, ga… |
| GoCreative AI | https://api.gocreativeai.com | Data & Social APIs | 145+ pay-per-call APIs for AI agents across social enrichment, OSINT lookups, web scraping, image generation, and docum… |
| fry.farm x402 Agentic Actions | https://fry.farm/x402/ | Data & Social APIs | 15 pay-per-call USDC endpoints on Algorand mainnet: DeFi/DePIN data + non-custodial transaction builders (staking, LP f… |
| 2s.io | https://2s.io | Data & Social APIs | Pay-per-call JSON API for AI agents. 35 endpoints: geo/IP, web extract + summarize + translate + screenshot, image comp… |
| Seneschal | https://seneschal.space | Data & Social APIs | Monero & Zcash payment watching for AI agents: hand over a view key (read-only) and a webhook URL, get an HMAC-signed P… |
| x402 Entity-ID Resolver | https://entityresolver.xyz | Data & Social APIs | Canonical cross-registry entity-ID resolver for AI agents. One ambiguous company or crypto name/ticker ("Apple", "ETH",… |
| HSH Data-on-Demand | https://dod.hshintelligence.com | Data & Social APIs | Made-to-order B2B data for AI agents on Base mainnet. Describe any data need in plain language, receive a custom quote,… |
| img402 | https://img402.dev | Data & Social APIs | Image hosting for AI agents. Upload an image, pay via x402, get a public CDN-backed URL. Three tiers: free (1MB, 7-day … |
| Melvea | https://api.melvea.com | Data & Social APIs | Citation-backed honey intelligence: structured varietal data and verifiable research provenance for 150+ honey varietie… |
| n0brains | https://n0brains.com | Data & Social APIs | Crypto intelligence with a live, auditable per-signal-type win-rate at /proof (forward returns vs BTC, 95% CI; underper… |
| Qonoro Intelligence API | https://api.qonoro.ai/docs | Data & Social APIs | x402-native intelligence APIs for AI agents and business workflows on Base mainnet. Endpoints include /v1/company/resea… |
| Stelar Digital x402 API (Algorand) | https://api-algo.stelardigital.com | Data & Social APIs | Pay-per-call market data and grid-trading params for AI agents, on Algorand mainnet via the GoPlausible facilitator. 3 … |
| TrustBoost PII Sanitizer | https://api.trustboost.dev | Data & Social APIs | Context-aware PII sanitization for autonomous AI agent pipelines. Redacts emails, phone numbers, national IDs (RFC/CPF/… |
| OpenClaw Research API | https://github.com/BumStill/x402-research-api | Data & Social APIs | Pay-per-call research API for AI agents. Web search, content extraction, code analysis, and PDF processing endpoints. $… |
| Crypto Data Agent | https://x402-crypto-data.vercel.app | Data & Social APIs | Live crypto prices (up to 25 coins per call) and DeFi yield pools (APY/TVL with chain/stablecoin filters) for AI agents… |
| Kairos Lab x402 Workers | https://x402-workers.kairos-lab.io | Data & Social APIs | 8 pay-per-call endpoints for AI agents on Solana mainnet, accepting both USDC and USDT (multi-token paywall). Includes … |
| Kraken Crypto Signals | https://signals.nsgoods.org | Data & Social APIs | Pay-per-call crypto market-state signals (BUY/SELL/HOLD + confidence) for AI agents, from a live multi-timeframe Kraken… |
| Agent Signals | https://cryptojp.com | Data & Social APIs | Crypto market-intelligence for AI trading agents. 3 pay-per-call endpoints on Base mainnet: cross-exchange funding rate… |
| SYNTHORA md-extract | https://pay.hergertsynthora.com/service | Data & Social APIs | Western EN/EU web → clean markdown + token budget for AI agents. Every response ships an Ed25519 attestation receipt: t… |
| SwapTitan | https://swaptitan.net | Data & Social APIs | No-KYC cross-chain crypto swap API for AI agents — 1288+ assets aggregated across 3 providers (ChangeNOW, SimpleSwap, H… |
| BORT Inference | https://api.bortagent.xyz/api/inference/v1/mode… | Data & Social APIs | OpenAI-compatible LLM chat completions for AI agents on BNB Chain. deepseek-v4-flash at 0.02 $U per call via POST /v1/c… |
| BrazilMCP | https://api.brazilmcp.dev | Data & Social APIs | Official-source Brazilian company data (KYB) for AI agents. Receita Federal registry lookup by CNPJ or company name ($0… |
| ProxyLLM LLM Cost Scout | https://api.proxyllm.ai/x402/llm-cost-scout | Data & Social APIs | Send a monthly OpenAI API bill, get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM … |
| eurc402 | https://eurc402.com | Data & Social APIs | EURC-priced, EU-sovereign compliance data for autonomous agents. EU VAT validation (VIES, all 27 member states) and pan… |
| Telemost | https://api.telemost.io | Data & Social APIs | Telegram channel analytics and statistics for AI agents: subscriber growth, average views and reach, engagement (ER/ERR… |
| scrape402 | https://x402.shizu.me | Data & Social APIs | 16 pay-per-call utility APIs for AI agents: web scraping (clean text, markdown, PDF-to-text, LLM structured extract), c… |
| Solana AI Agent API | https://solana-agent-api-production.up.railway.… | Data & Social APIs | OFAC-sanctions AML screening, program safety heuristics, rug-pull risk scan (free), plus wallet credit score and AI-pow… |
| Lazarus Long Healthspan ROI Advisor | https://roi-advisor-pi.vercel.app | Data & Social APIs | Evidence-based longevity interventions ranked by ROI for older adults. POST a user profile (age cohort, health concerns… |
| OmniNexu | https://www.omninexu.com | Data & Social APIs | Structured, traceable S&P 500 financial intelligence for AI agents. 8 x402-paywalled endpoints ($0.01–$0.05 USDC on Bas… |
| SEC Reg CF Raise Tracker | https://sec-regcf-tracker.xplowdiaka.workers.dev | Data & Social APIs | Track US Regulation Crowdfunding (Form C) startup raises for AI agents: query live and historical offerings by issuer C… |
| Sanctions Screening | https://sanctions-screening.xplowdiaka.workers.… | Data & Social APIs | Screen a person, company, or crypto wallet address against the OFAC SDN list (US Treasury) and the UN Security Council … |
| x402 Counterparty Score | https://x402score.org | Data & Social APIs | Trust verdict (trusted/caution/avoid) with wash-trading ratio, real-buyer count, and repeat-buyer rate for any x402 end… |
| GLEIF Entity Resolution | https://gleif-entity.xplowdiaka.workers.dev | Data & Social APIs | Resolve a company name to its canonical Legal Entity Identifier (LEI) for AI agents: legal name, status, jurisdiction, … |
| openFDA Drug Safety | https://openfda-drug-safety.xplowdiaka.workers.… | Data & Social APIs | Pay-per-call FDA drug safety profiles for AI agents: label highlights (boxed warning, contraindications, interactions),… |
| Negbit | https://negbit.com | Data & Social APIs | Knowledge bookstore for AI agents: structured OKF knowledge bundles bought over x402. USDC on Base via CDP facilitator,… |
| x402-solana | https://x402-solana-cva8.onrender.com | Data & Social APIs | 10 pay-per-call API tools for AI agents, settled in USDC on Solana mainnet via the Coinbase CDP facilitator (gasless fo… |
| Token Intel | https://token-intel-x402.echolonius.deno.net | Data & Social APIs | Solana token due-diligence for AI agents: one call fuses on-chain safety signals (mint/freeze authorities, holder conce… |
| MGO — Multi-chain Gas Optimizer | https://api.mgo.chain-ops.xyz | Data & Social APIs | Compares real-time gas prices across EVM chains and returns a cheapest-chain recommendation (e.g. "Use Base — saves 99.… |
| Kronos x402 API | https://kronossignals.com | Data & Social APIs | Pay-per-call crypto derivatives, forecasting, and market-signal API for AI agents. 20 tools priced $0.001–$0.04 USDC pe… |
| SibFly | https://sibfly.com | Data & Social APIs | Measured ground-motion (subsidence & uplift) data for any US address, in mm/year from NASA OPERA Sentinel-1 InSAR — for… |
| Tantra Authority / The Naked Press | https://api.tantra-authority.com | Data & Social APIs | 49 AOP offers (courses, eBooks, meditations, readings), each x402-buyable in USDC on Base. (Offer discovery) |
| x402-signature-service | https://signx402.com | Data & Social APIs | E-signatures for AI agents: send one PDF to one email recipient for simple electronic signature (powered by Documenso),… |
| token-intel | https://nexus-zero.xyz | Data & Social APIs | Solana token rug-risk intelligence for AI agents. One $0.01 USDC call (x402 v2, Solana mainnet) returns a composite CLE… |
| Azimuth | https://azimuth.day | Data & Social APIs | Radio-frequency positioning DePIN for AI agents. Pay-per-call location APIs — estimate a position from cellular observa… |
| Oromi Agent Services | https://agents.oromi.co.uk | Data & Social APIs | 25 pay-per-call endpoints for AI agents: Companies House lookups & business-name availability checks, HM Land Registry … |
| Kerne Protocol | https://kerne.fi/x402/reserves | Data & Social APIs | Proof-of-reserves and signed ERC-20 reads for AI agents. GET /reserves ($0.25) returns Kerne's hourly EOA-signed proof-… |
| SFtunes | https://sftunes.com | Data & Social APIs | Hand-made human mixtapes with per-track liner notes, curated by real friends, served as a paid catalog for AI agents. $… |
| Grey Ridge Signals — x402 Data & Security APIs | https://x402-data-api.sigrunner.workers.dev | Data & Social APIs | 17 agent-native pay-per-call endpoints: blockchain queries (balance, gas, chain-id, code, receipts, token balances, tok… |
| snapbrief | https://89.106.83.95.sslip.io:8445 | Data & Social APIs | Full-page PNG screenshots of any public URL rendered in headless Chromium, with SSRF protection blocking private and lo… |
| weatherbrief | https://89.106.83.95.sslip.io:8446 | Data & Social APIs | Hourly weather forecasts for any latitude/longitude, backed by MET Norway locationforecast data. $0.01 USDC on Base per… |
| Aura NFT Market Audit | https://aura-revenue.helionixlabs.com/x402/cata… | Data & Social APIs | Production x402 API on Base that validates exact-token OpenSea listing and offer structure using token-specific market … |
| Watchtower | https://watchtower-api.com | Data & Social APIs | Deterministic sanctions & export-control name screening for AI agents. Screens people, companies, vessels, and crypto a… |
| IssueFoundry Agent Market | https://issuefoundry-index.jadennuckels.chatgpt… | Data & Social APIs | Non-custodial agent utility market on Base with six API-key-free x402 services priced from $0.001 USDC, including endpo… |
| Bincrease Operations APIs | https://bincrease.vercel.app/developers | Data & Social APIs | Seven x402 v2 endpoints for agent operations: public GitHub repository activity and release intelligence ($0.03 USDC), … |
| Melchior Video Context | https://transcript.melchiorlabs.com | Data & Social APIs | Pay-per-request YouTube caption extraction and transcript normalization with timestamped segments, model-sized chunks, … |
| jurat | https://jurat.dev | Data & Social APIs | Evidence infrastructure for AI agents. Notarized snapshots of any public URL (ed25519-signed attestations, archived byt… |
| zaref | https://zaref.dev | Data & Social APIs | South African reference data for AI agents: fuel prices, interest rates, tax tables, FX rates, bond yields, deeds fees,… |
| Agent Data API | https://agent-data-api-ui1c.onrender.com/catalog | Data & Social APIs | 19 pay-per-call data tools for AI agents: crypto & DeFi market data (cross-exchange funding rates, market-regime signal… |
| AEGIS | https://api.mcx-ventures.com | Data & Social APIs | Network forensics and adversarial verification for AI agents on Base mainnet. /v2/forensics ($0.25) runs six checks for… |
| paypi | https://pay.ansht.tech | Data & Social APIs | Solana intelligence for AI agents, settling in USDC on Solana + Base via Coinbase CDP facilitator (x402 v2 with Bazaar … |
| Recompete Radar | https://recompete.melchiorlabs.com | Data & Social APIs | Source-linked U.S. federal contract award expiration evidence from USAspending.gov for research agents. Returns recorde… |
| Mart402 | https://mart402.com | Data & Social APIs | Web and PDF extraction APIs for AI agents with hallucination-guarded OCR: dual-engine consensus (VLM + traditional OCR)… |
| Conway Address Intel | https://conway-address-intel-production.up.rail… | Data & Social APIs | Instant Base address intelligence for pre-transaction due diligence: contract vs wallet, ETH/USDC balances, activity le… |
| Hermes Plant | https://hermesplant.com/agent-services | Data & Social APIs | Deterministic per-record validation and finance math for AI agents: email/contact validation and normalization (loop a … |
| modelprices.xyz | https://modelprices.xyz | Data & Social APIs | Normalized LLM market data: per-token prices, context windows and capability limits, and a price-change feed for 2,000+… |
| frenex | https://frenex.ai | Games & On-Chain Apps | Autonomous AI agent prediction arena on Base. Agents register free via MCP, publish opinions, stake parimutuel predicti… |
| Contract Risk Checker | https://contract-checker-572078894996.us-centra… | Games & On-Chain Apps | AI-powered legal contract analysis for autonomous agents. Detects killer clauses, calculates risk score 0–100 (RED/YELL… |
| Invoice Parser | https://invoice-parser-572078894996.us-central1… | Games & On-Chain Apps | Structured invoice data extraction for finance automation agents. Extracts vendor, total, line items, dates, tax, and p… |
| WingmanProtocol Agent Gateway | https://agent.wingmanprotocol.com | Games & On-Chain Apps | Resources a stateless agent can't host itself: async errands, artifact hosting, watches (a durable clock), memory + coo… |
| MineThisThing | https://minethisthing.com | Games & On-Chain Apps | API-only idle-mining game for AI agents played over ed25519-signed HTTP: mine 10 metals on a 5s cooldown, upgrade tools… |
| Beef402 | https://beef402.dvd90.workers.dev | Games & On-Chain Apps | Pay-per-battle AI roast arena: create a fighter, pay $0.05 USDC, and it battles another fighter via LLM-generated roast… |
| SEODesignLab SEO Intelligence | https://seodesignlab-paywall.seodesignlab.worke… | Games & On-Chain Apps | Full-stack SEO intelligence API for AI agents: POP content briefs ($2.00), keyword research ($1.50), SERP analysis ($2.… |
| The Agent Carnival | https://midway.lol | Games & On-Chain Apps | Whimsy booths for AI agents on Base mainnet, $0.01 per booth: a surreal bedtime story written for the calling agent, an… |
| b0x402 | https://x402-cf-worker.mulberry-boar.workers.dev | Enterprise Adoption | AI-powered crypto intelligence API: meme coin signals, DeFi sentiment, market equilibrium analysis, and wallet profilin… |
| b0xM4 | https://b0xm4-solana-pulse.mulberry-boar.worker… | Enterprise Adoption | Meridian-powered Solana DLMM screener. Real-time TVL, volume, organic score, smart wallet tracking, token safety, fee/T… |
| agentfeeds.jp | https://api.agentfeeds.jp | Enterprise Adoption | Japan regulatory, sanctions & DEX market data for AI agents. 27 paid endpoints ($0.001-$0.05) covering FSA/e-Gov regula… |
| assay-x402-guard | https://www.npmjs.com/package/assay-x402-guard | JavaScript/TypeScript | Buyer-side spend guard: wrap your paying fetch with wrapFetchWithAssay and payments to services the Assay oracle rates … |
| cipher-x402-client | https://github.com/cryptomotifs/cipher-x402-cli… | JavaScript/TypeScript | Lightweight TS/JS x402 v2 client. Zero runtime deps, native fetch, ESM + CJS dual build. 34 tests, 89% coverage. Node 1… |
| x402-got | https://www.npmjs.com/package/x402-got | JavaScript/TypeScript | Got HTTP client integration. |
| PayBot SDK | https://github.com/RBKunnela/paybot-sdk | JavaScript/TypeScript | TypeScript SDK for integrating x402 payments into AI agents and bots. Supports automatic 402 detection, wallet manageme… |
| ClawPay MCP | https://www.npmjs.com/package/clawpay-mcp | JavaScript/TypeScript | Non-custodial x402 payment layer for AI agents. Agents sign locally with their own keys — no custodial infrastructure n… |
| Askew OpenClaw Plugin | https://github.com/rubix1138/askew-openclaw-plu… | JavaScript/TypeScript | OpenClaw plugin exposing 5 paid + 3 free Askew x402 endpoints (DeFi yields across 5 chains, native-vs-liquid staking ro… |
| Azeth SDK | https://github.com/azeth-protocol/sdk | JavaScript/TypeScript | TypeScript SDK with x402 client (fetch402), ERC-4337 smart accounts, on-chain reputation feedback after every x402 call… |
| MoltsPay | https://github.com/Yaqing2023/moltspay | JavaScript/TypeScript | Payment infrastructure for AI agents with x402 support. CLI, TypeScript SDK, and LangChain/CrewAI integrations. Gasless… |
| PipRail | https://github.com/piprail/piprail | JavaScript/TypeScript | Backendless, no-fee x402 SDK for AI agents across 28 chains in 10 families (every major EVM chain plus Solana, TON, Tro… |
| agent402-client | https://www.npmjs.com/package/agent402-client | JavaScript/TypeScript | Non-custodial buyer SDK for x402 + MCP. Two methods: find() resolves a natural-language task to a paid tool, call() inv… |
| @countersign/x402 | https://github.com/countersign-network/packages | JavaScript/TypeScript | Spend governance for agents that pay over x402: parse the 402 challenge, check it against a spend policy pre-flight (pe… |
| payfetch | https://github.com/forum-labs/payfetch | JavaScript/TypeScript | Non-custodial paying-fetch client for agents (TypeScript library, CLI, and MCP server) where the operator owns the spen… |
| @chain-ops/agent-sdk | https://www.npmjs.com/package/@chain-ops/agent-… | JavaScript/TypeScript | One-line SDK combining x402 payments (V1 + V2) with ERC-8004 agent identity. agent.pay(url) attaches the ERC-8004 ident… |
| agent-payment-guard | https://github.com/kaditang/agent-payment-guard | JavaScript/TypeScript | Pre-pay risk gate for autonomous payment agents — a Claude Agent SDK PreToolUse hook (or framework-agnostic paymentGuar… |
| aegis-buy | https://github.com/Donk338/aegis-buy | JavaScript/TypeScript | Trust-gated x402 buyer client with a local spend policy. Checks a service's delivery-verified trust score before paying… |
| Agent Wallet SDK | https://www.npmjs.com/package/agentwallet-sdk | JavaScript/TypeScript | Non-custodial smart contract wallets for AI agents with on-chain spend limits and operator model. Base L2. (npm) |
| viem | https://viem.sh/ | JavaScript/TypeScript | TypeScript library used for signing payments. |
| ethers.js | https://docs.ethers.org/ | JavaScript/TypeScript | Alternative Ethereum library. |
| AgentLayer | https://github.com/lopushok9/Agent-Layer | JavaScript/TypeScript | Open-source, local-first wallet for AI agents, with x402 payments and DeFi tools for Base, Solana, and Ethereum, includ… |
| alloy | https://github.com/alloy-rs/alloy | Rust | High-performance Ethereum library. |
| swerver | https://x402.swerver.net | Gateway / Proxy | High-performance x402 gateway proxy. Point it at any upstream API, set per-route USDC pricing, and swerver handles 402 … |
| Gate402 | https://gate402.app | Gateway / Proxy | x402 M2M payment gateway with a unified /v1/ storefront of 12 pay-per-call endpoints, all indexed in the CDP x402 Bazaa… |
| GATEWAY | https://gateway-x402.vercel.app | Gateway / Proxy | Canonical Algorand x402 discovery router (Exact AVM, dual-accept testnet+mainnet). Free cleaned /registry + paid /disco… |
| monapi | https://monapi.dev | Node.js/TypeScript | One-line API monetization SDK. Wraps x402 setup into a single function call. Express, Next.js, and MCP support. Per-rou… |
| autonomagic-marketplace | https://www.npmjs.com/package/autonomagic-marke… | Node.js/TypeScript | Plugin marketplace primitive for x402. Drop a JS file in endpoints/, the loader registers it as a paid HTTP endpoint in… |
| payments-gateway | https://github.com/Rotwang9000/payments-gateway | Node.js/TypeScript | Brand-neutral Fastify payments engine: x402 USDC paywalls (auto-selects the Coinbase CDP facilitator when keys are pres… |
| x402-receipts | https://github.com/StelarDigital/x402-receipts | Node.js/TypeScript | Signed proof-of-delivery receipts for x402 sellers: verify settlement on-chain, merkle-batch and anchor receipt roots v… |
| @moltrust/x402 | https://www.npmjs.com/package/@moltrust/x402 | Node.js/TypeScript | Trust score middleware for x402 endpoints. One line: app.use(requireScore({ minScore: 60 })). Extracts paying wallet fr… |
| @larkinsh/x402 | https://www.npmjs.com/package/@larkinsh/x402 | Node.js/TypeScript | Authorization middleware for x402 endpoints. One line: preflight(handler, { minScore: 40 }). Gates by a 5-dimension tru… |
| agent402-tollbooth | https://www.npmjs.com/package/agent402-tollbooth | Node.js/TypeScript | Pay-per-crawl gate for site owners. Two-line Express/Next/Cloudflare integration: bot-only / all-traffic / strict charg… |
| meter402 | https://github.com/Risingtell/meter402 | Node.js/TypeScript | Per-second streaming/metered settlement for x402 — turns one-shot 402 calls into pay-as-you-consume billing (pay a tick… |
| x402-next | https://www.npmjs.com/package/x402-next | Node.js/TypeScript | App Router middleware. |
| Next.js route protection | https://github.com/coinbase/x402/tree/main/exam… | Node.js/TypeScript | Complete app example. |
| Azeth Provider | https://github.com/azeth-protocol/provider | Node.js/TypeScript | Hono middleware for gating endpoints behind x402 payments with payment-agreement support for recurring agent-to-agent b… |
| FastAPI example | https://github.com/coinbase/x402/tree/main/exam… | Python | Complete implementation. |
| x402-agent-monetizer | https://github.com/minhthai1995/x402-agent-mone… | Python | ⭐ Community - Drop-in @paywall decorator for FastAPI. One decorator gates any endpoint behind USDC on Base. Includes a … |
| x402 Payment Harness | https://github.com/rplryan/x402-payment-harness | Python | Python library + CLI for x402 payments without requiring Coinbase CDP wallet. Works with any Ethereum EOA. Full HTTP 40… |
| MoltsPay Python | https://github.com/Yaqing2023/moltspay-python | Python | Python SDK for x402 agent payments. LangChain compatible. Auto-creates wallets, discovers services, pays via x402. Mult… |
| switchboard | https://github.com/kcolbchain/switchboard | Python | Python middleware + on-chain escrow for agent payments. FastAPI/Flask X402Middleware server-side, gas budget tracker, r… |
| Routeweiler | https://github.com/nikoSchoinas/routeweiler-pyt… | Python | Python micropayment client for autonomous agents that auto-handles HTTP 402 across x402, L402, MPP-Tempo, and Stripe SP… |
| Cloudflare x402 | https://blog.cloudflare.com/x402/ | 🏗️ Facilitators | Edge computing facilitator on Base/Ethereum with deferred settlement. |
| BNB Chain Pieverse | https://twitter.com/BNBChainDevs/status/1983198… | 🏗️ Facilitators | BNB Chain facilitator with instant settlement. |
| AsterPay | https://asterpay.io | 🏗️ Facilitators | European x402 Facilitator with EUR off-ramp via SEPA Instant. MiCA compliant, ERC-8004 ready, ElizaOS plugin. First Eur… |
| FluxA | https://fluxapay.xyz | 🏗️ Facilitators | Hosted x402 facilitator for AI agent payments. Extends x402 with AEP2 protocol for deferred settlement, agent co-wallet… |
| MERX x402 for TRON | https://x402.merx.exchange | 🏗️ Facilitators | First TRON facilitator. Supports USDT, USDC, USDD on TRON mainnet. Sub-3-second confirmation for micropayments. Express… |
| Primev FastRPC | https://facilitator.primev.xyz | 🏗️ Facilitators | Fee-free facilitator on Ethereum mainnet with sub-200ms settlement via mev-commit preconfirmations. ERC-8004 registered… |
| Voidly Pay | https://api.voidly.ai/v1/pay | 🏗️ Facilitators | USDC-backed agent-to-agent payment rail on Base mainnet. Source-verified vault (0xb592…1c12), public proof of reserves … |
| Satoshi Facilitator | https://bitcoinsapi.com/docs | 🏗️ Facilitators | Independent x402 facilitator for Bitcoin-focused pay-per-call services with Base, Base Sepolia, Solana Mainnet, and Sol… |
| Floe | https://floelabs.xyz | 🏗️ Facilitators | Credit and payments for AI agent developers. x402 credit lines, fiat funding (card/bank/Apple Pay in 100+ countries), p… |
| AlgoVoi | https://api1.ilovechicken.co.uk/.well-known/age… | 🏗️ Facilitators | Multi-chain x402 facilitator spanning EVM (Base, Tempo), SVM (Solana), AVM (Algorand, VOI), Stellar, and Hedera on a si… |
| x402-saas | https://x402-saas.surge.sh | 🏗️ Facilitators | Hosted facilitator + zero-SDK onboarding proxy on Base. SIWE auth, slug-routed multi-tenant data plane, 1% of routed US… |
| Primer | https://x402.primer.systems | 🏗️ Facilitators | Free x402 facilitator supporting Base and SKALE Base networks, with full ERC-20 support. v1 and v2 x402 both accepted. … |
| Solvador | https://solvador.com | 🏗️ Facilitators | Multi-network, multi-scheme x402 facilitator: 10 EVM chains (Base, Arbitrum, Optimism, Polygon, Avalanche, Celo, Linea,… |
| NEAR x402 Facilitator | https://x402.mikedotexe.com/ | 🏗️ Facilitators | Open-source, API-key-gated facilitator for exact Circle USDC payments on NEAR and Base, with sponsored gas and durable … |
| Running Your Own Facilitator | https://github.com/x402-rs/x402-rs#facilitator | Self-Hosted Facilitators | Setup guide. |
| @facilitator/eip7702 | https://github.com/melonask/facilitator | Self-Hosted Facilitators | Support for all EVM blockchains (BNB, Polygon, etc.), all tokens (USDT, DAI, WBTC, etc.), and all native coins (POL, AV… |
| agenticpay facilitator | https://github.com/krystiangw/agenticpay/tree/m… | Self-Hosted Facilitators | (npm) - Open-source TypeScript facilitator for Solana (devnet + mainnet). Verify + settle via @x402/svm/exact/facilitat… |
| Ontario Protocol | https://ontarioprotocol.com | Self-Hosted Facilitators | Trust scans, readiness verification, and pre-payment checks for x402 endpoints; live paid API on Base (USDC) with MCP s… |
| DeadDrop | https://deaddrop.jerrywrongalot.workers.dev | 💡 Example Applications | One-time secret relay for humans and AI agents: POST a secret ($0.01 USDC on Base via x402), get a link that self-destr… |
| LION | https://lionx402.com | 💡 Example Applications | 20 keyless data & compliance tools for AI agents via x402 USDC micropayments on Base. OFAC sanctions screening, on-chai… |
| twentyone-million | https://twentyonemillion.art | Full-Stack Applications | A collectible wall for AI agents: $1 USDC on Base via x402 for one permanent numbered square, one per wallet. Live on m… |
| Weather API Service | https://github.com/coinbase/x402/tree/main/exam… | Full-Stack Applications | Simple paid API endpoint. |
| Video Paywall | https://www.quicknode.com/guides/infrastructure… | Full-Stack Applications | Premium content access tutorial. |
| x402 Boilerplate — Conflux eSpace | https://github.com/confluxarena/x402-boilerplate | Full-Stack Applications | Production-ready paid AI API with PHP backend, Node.js facilitator, CLI agent, Docker, 87 tests, and multi-wallet demo.… |
| x402 Dynamic Pricing | https://github.com/trionlabs/x402-dynamic-prici… | Full-Stack Applications | Demand-based surge pricing engine using x402 V2's dynamic getAmount callback. Sliding window with 5-tier interpolation … |
| Agent Arena | https://agentarena.site | Full-Stack Applications | On-chain ERC-8004 agent registry with x402-gated search ($0.001 USDC/query) and registration ($0.05 USDC). Agents disco… |
| CIPHER Premium | https://cipher-x402.vercel.app | Full-Stack Applications | Next.js 16 paywall with 4 gated Solana-quant chapters (MEV deep-dive, 3-tier wallet, Canadian compliance, Oracle Cloud … |
| Remote Signal API | https://allan-great-skirt-average.trycloudflare… | API Examples | Curated JSON feed: 50 RemoteOK dev/SaaS jobs + 20 HN Show HN posts for recruiting teams and indie builders. Free tier (… |
| tokenguard | https://eltociear-tokenguard.hf.space/scan | API Examples | ERC-20 rug/safety scanner: detects mint, blacklist, pausable, transfer-tax, upgradeable-proxy & ownership traps and ret… |
Table shows up to 300 rows; all 781 rows are in the JSON file.