x402 协议相关的官方文档、SDK、服务端框架、生产实现、示例与工具，按原清单章节归类，附来源链接。
原清单以 CC0 1.0 公有领域许可发布，可自由转载；本页保留每条记录的原链接。
| 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… |
表中最多展示 300 条；完整 781 条见 JSON 文件。