x402 paid APIs: MCP servers, A2A agents and x402 APIs

• vealth.net Live x402

  Work tCO2e Accounting (CDP-settled mirror) — ecological accounting guidance from the production settle-to-retire mapping for a work type. NOT a credit, NOT a retirement.

  x402 paid API · 1 endpoint

• vedetta.dethboy.com Live x402

  Recent analyst desk posts as a stream (?since_id=&asset=&limit=): cached, instant, half a cent. Poll it cheaply; escalate to a live read when something moves. Descriptive research, not financial advice. (3 paid endpoint…

  x402 paid API · 3 endpoints

• vending-machine-seven.vercel.app Live x402

  Public URL status, latency, and response header subset for uptime and health agents (10 paid endpoints on vending-machine-seven.vercel.app.)

  x402 paid API · 10 endpoints

• vendsdk.com Live x402

  Follow a public redirect chain with per-hop HTTP status (SSRF-safe) for security agents (14 paid endpoints on vendsdk.com.)

  x402 paid API · 12 endpoints

• vennatta-core.onrender.com Live x402

  Extract structured text, summaries, or metadata from supplied document text or a public HTTP(S) document URL. (3 paid endpoints on vennatta-core.onrender.com.)

  x402 paid API · 3 endpoints

• verifiable-random.use.x402atlas.com Live x402

  Verifiable Random pick — string selection with or without replacement bound to a future drand round the server waits for (typically 3-6s) and verifies locally, with a reproducible proof transcript. (3 paid endpoints on…

  x402 paid API · 3 endpoints

• verifier.quantumshieldlabs.dev Live x402

  Classify a caller-supplied operation claim against caller-supplied evidence under deterministic rules and return a machine-readable handoff receipt. Use this when an orchestrator needs a consistent completion state befo…

  x402 paid API · 2 endpoints

• verify.clearsigned.com Live x402

  Clearsigned — the trust layer with no stake in the outcome. Submit {claim, evidence[]}, receive an Ed25519-SIGNED, evidence-bearing receipt (verify offline against GET /pubkey; every receipt is chained in the public led…

  x402 paid API · 1 endpoint

• vibesprings.net Live x402

  Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange. (25 paid endpoints on vibesprings.net.)

  x402 paid API · 12 endpoints

• video.cyberwarex.com Live x402

  YouTube video metadata in one call: title, channel name and id, duration, upload date, view and like counts, description, thumbnail URL, the chapter list with start and end times, and the language plus kind (manual or a…

  x402 paid API · 2 endpoints

• visual.hugen.tokyo Live x402

  Screenshot any public URL — returns base64 JPEG/PNG with metadata (page title, file size, render time). Full-page scroll capture, CSS selector targeting, device emulation (iPhone 15 Pro, Pixel 7, iPad Pro 12.9), dark mo…

  x402 paid API · 4 endpoints

• visuals.use.x402atlas.com Live x402

  QR code generator — encode text, URLs, payment URIs, or arbitrary UTF-8 data as base64-encoded SVG or PNG in a JSON envelope. (2 paid endpoints on visuals.use.x402atlas.com.)

  x402 paid API · 2 endpoints

• voice.forgemesh.io Live x402

  Text-to-speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 characters, returned as inline WAV audio. Use it to: give an agent a spoken reply, read an alert aloud, n…

  x402 paid API · 10 endpoints

• vrsai.tech Live x402

  Check an exact npm or PyPI package version immediately before installation using current registry, vulnerability, malicious-package, withdrawal/deprecation, and verified provenance evidence. Returns ALLOW, REVIEW, BLOCK…

  x402 paid API · 1 endpoint

• watchevelive.com Live x402

  Eve’s RWA print: which official number is the actual (T-bill, gold, NAV). Call for official prints, not casino coins. (3 paid endpoints on www.watchevelive.com.)

  x402 paid API · 3 endpoints

• waterpulse.theaslangroupllc.com Live x402

  Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS s…

  x402 paid API · 1 endpoint

• wazir-x402.duckdns.org Live x402

  PoolTogether draw-schema — volgende draw op Base/Arb/OP/Scroll (4 paid endpoints on wazir-x402.duckdns.org.)

  x402 paid API · 4 endpoints

• weather.agentic-jp.com Live x402

  List every JMA forecast office (府県予報区) in Japan with its code, Japanese/English name, and class10 sub-regions. Use this to discover valid `:area` values.

  x402 paid API · 1 endpoint

• weather.cyberwarex.com Live x402

  Weather forecast for a location (global, keyless): current conditions, an hourly series (up to 48h) and a daily summary (up to 10 days: min/max temp + condition), from met.no. Pass lat+lon, or a place name. For travel,…

  x402 paid API · 1 endpoint

• weather.hugen.tokyo Live x402

  Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one call. Global cover…

  x402 paid API · 2 endpoints

• web-production-18a32.up.railway.app Live x402

  Current weather conditions by city or place name. (5 paid endpoints on web-production-18a32.up.railway.app.)

  x402 paid API · 5 endpoints

• web-scraper-api-production-bf20.up.railway.app Live x402

  Extract page metadata: title, description, keywords, author, published/modified dates, canonical, language, favicon, and OpenGraph/Twitter card tags. (3 paid endpoints on web-scraper-api-production-bf20.up.railway.app.)

  x402 paid API · 3 endpoints

• webbersites.com Live x402

  ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic API dialect: same request/response shape, no Anthropic account, the x402 payment IS the auth. Point an Anthropic SDK's base_url at https:/…

  x402 paid API · 12 endpoints

• web.cyberwarex.com Live x402

  Read any live web page as clean, LLM-ready text. Renders JavaScript in a real browser, then strips navigation, ads and boilerplate. Use it when a plain HTTP GET returns empty or garbled HTML: single-page apps, dynamic f…

  x402 paid API · 5 endpoints

• web.openverbs.com Live x402

  Fetch a site's robots.txt and evaluate crawl permissions: given a URL (plus optional extra paths) and a user-agent, return whether each path is allowed or disallowed, the rule that matched, the user-agent group, the cra…

  x402 paid API · 9 endpoints

• web.tollkit.dev Live x402

  PDF to text: give a PDF URL, get the text of every page with the title, author and page count. For RAG, research and summarizing reports, filings and papers. (6 paid endpoints on web.tollkit.dev.)

  x402 paid API · 6 endpoints

• weight402endpoint.vercel.app Live x402

  Convert a weight/mass value between units (kg, g, lb, oz, stone, tonne, and more).

  x402 paid API · 1 endpoint

• wetter.halowerk.com Live x402

  Single models are everywhere. This is the disagreement between them: per hour a median with a p15/p85 band, the full min/max spread, how many models still carry that hour, an agreement score, rain probability derived fr…

  x402 paid API · 2 endpoints

• whitemagic.dev Live x402

  WhiteMagic continuity-receipt verification: POST a signed receipt bundle and receive a verdict (TRUSTED / PROVISIONAL / INSUFFICIENT_EVIDENCE / UNTRUSTED) with coded errors and an optional signed verification receipt. V…

  x402 paid API · 1 endpoint

• wikidata.openverbs.com Live x402

  Fetch a Wikidata entity by Q-id: label, description, aliases and its claims (property → values). (2 paid endpoints on wikidata.openverbs.com.)

  x402 paid API · 2 endpoints

• wiki.use.x402atlas.com Live x402

  Wikipedia article summary — plain-text and HTML extract, short description, thumbnail and Wikidata id for any title, in a clean normalized envelope with CC-BY-SA attribution.

  x402 paid API · 1 endpoint

• wintel.canopy.finance Live x402

  Live scored geopolitical threat feed: name, category, severity, coordinates, and source URL for every active tracked threat. (2 paid endpoints on wintel.canopy.finance.)

  x402 paid API · 2 endpoints

• workbot1.oddsys.org Live x402

  Live foreign-exchange reference rates (European Central Bank daily fixes, ~30 major currencies): any cross-rate from any base, optional amount conversion. Refreshed daily; response carries the rate date. (13 paid endpoi…

  x402 paid API · 12 endpoints

• x-402.online Live x402

  Get price per square metre and recent sales around a French address. Lite property analysis for a French address: median price per square metre in the area, estimated value and an investment score. Enough to screen a sh…

  x402 paid API · 12 endpoints

• x402-adsb.x402-adsb-worker.workers.dev Live x402

  Live aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timet…

  x402 paid API · 1 endpoint

• x402-api.aubr.ai Live x402

  Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist. (5 paid endpoints on x402-api.aubr.ai.)

  x402 paid API · 5 endpoints

• x402-data-api.onrender.com Live x402

  IP geolocation: country, region, city, coordinates, and timezone for any IPv4 or IPv6 address. Fast in-memory lookup for analytics, fraud, and personalization agents. (2 paid endpoints on x402-data-api.onrender.com.)

  x402 paid API · 2 endpoints

• x402-datashop-production.up.railway.app Live x402

  Latest European Central Bank reference exchange rates, normalized JSON. Query: ?base=EUR&symbols=USD,GBP,JPY (symbols optional -> all). Rates update once per working day; served with a 1h cache. (7 paid endpoints on x40…

  x402 paid API · 7 endpoints

• x402-dataviz-poc.theliminalguy.workers.dev Live x402

  Render a bar/line/area chart to SVG (v2 discovery probe)

  x402 paid API · 1 endpoint

• x402-doctor.fizzl.eu Live x402

  Is this x402 endpoint safe to pay? Call it before your AI agent pays an endpoint it has not used before. Returns a go / caution / no_go verdict, the recommended payment option (network and amount) and the reasons (payme…

  x402 paid API · 5 endpoints

• x402-factory.com Live x402

  Cheapest endpoint: liveness plus x402 payment pipeline check — Returns ok with the server time and whether this call was paid. Use it to verify your x402 client end to end before spending on data endpoints. (189 paid en…

  x402 paid API · 12 endpoints

• x402-filings.datalayer.workers.dev Live x402

  Job postings read straight from a company's own applicant tracking system — Greenhouse, Lever, Ashby, SmartRecruiters, BambooHR or Recruitee. This is the source that job boards scrape, so there are no duplicates, no exp…

  x402 paid API · 6 endpoints

• x402-fuelprice-poc.theliminalguy.workers.dev Live x402

  Current UK weekly average road fuel price (petrol + diesel, pence/litre), sourced live from DESNZ (UK gov)

  x402 paid API · 1 endpoint

• x402-gateway-production.up.railway.app Live x402

  x402engine — Run code in isolated sandbox — Python, JavaScript, Bash, R (up to 5 min) (4 paid endpoints on x402-gateway-production.up.railway.app.)

  x402 paid API · 4 endpoints

• x402-pulse-seller-production.up.railway.app Live x402

  Live BTC/ETH/SOL prices + the Crypto Fear & Greed Index in one call. Sourced from CoinGecko and alternative.me public data, combined for convenience.

  x402 paid API · 1 endpoint

• x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app Live x402

  Live snapshot of the most liquid carbon credits retirable on Base: the top 3 Klima Protocol carbon classes and the top 3 Carbonmark marketplace listings, with USDC-per-tonne prices and tonnes available. Additionally, th…

  x402 paid API · 1 endpoint

• x402-seller-a5et.onrender.com Live x402

  Call when you want the current Musebook money-challenge leaderboard, trending lobby posts, and newest Playbook skills in one payload. $0.01 USDC (2 paid endpoints on x402-seller-a5et.onrender.com.)

  x402 paid API · 2 endpoints

• x402-seller.onrender.com Live x402

  Latest Henry Hub natural gas spot price (USD/MMBtu), sourced from the U.S. Energy Information Administration. Data lags several business days behind the market; not live trading data. (16 paid endpoints on x402-seller.o…

  x402 paid API · 12 endpoints

Related capabilities

On-chain dataTrading & marketsAI models & inferenceMaps & travelResearchAgent infrastructureSecurity & trustCrypto market data

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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