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

• cm-record.org Live x402

  One paid call on cm-record.org for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with a…

  x402 paid API · 1 endpoint

• cn402.com Live x402

  Chinese temple fortune slip divination (求签, 签文, 抽签). Draws a numbered qianzi slip from traditional Chinese temple oracles (Guanyin 观音, Guan Di 关帝, Mazu 妈祖), returns slip number, level (上签, 中签, 下签), classical poem, and i…

  x402 paid API · 12 endpoints

• codepulse-api.hahavoid0.workers.dev Live x402

  Fetches TXT, MX, A, CNAME, and CAA records for a domain via Cloudflare DNS-over-HTTPS. (5 paid endpoints on codepulse-api.hahavoid0.workers.dev.)

  x402 paid API · 5 endpoints

• coinflip402.vercel.app Live x402

  Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.

  x402 paid API · 1 endpoint

• coingecko.use.x402atlas.com Live x402

  Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana). (6 paid endpoints on coingecko.use.x402atlas.com.)

  x402 paid API · 6 endpoints

• coinopai.com Live x402

  Returns the 4 top-level product categories (market intelligence, workflows, media generation, infrastructure) with endpoint lists and service counts — use it to route discovery before browsing individual services. (16 p…

  x402 paid API · 12 endpoints

• combinatorics.openverbs.com Live x402

  The n-th Catalan number Cₙ = C(2n, n)/(n+1), counting balanced bracketings, binary trees, and many other structures. Requires n ≤ 10000. (5 paid endpoints on combinatorics.openverbs.com.)

  x402 paid API · 5 endpoints

• companylens.ve1iko.chatgpt.site Live x402

  Resolve a UK legal company name or registration number to a sourced Companies House profile. Returns company status, incorporation, SIC codes, registered office, filing due dates and overdue flags. Use for company resea…

  x402 paid API · 1 endpoint

• compliancepulse.theaslangroupllc.com Live x402

  Is this EU VAT number valid? Live VIES check against the European Commission's official VAT Information Exchange System — validate a European VAT id, verify a business tax id before invoicing, confirm B2B reverse-charge…

  x402 paid API · 2 endpoints

• compliapi.com Live x402

  Screen a website URL or domain against OFAC SDN and other global sanctions lists. Call before paying, advertising on, or integrating with a website to check for sanctions associations. Returns per-list matches with sour…

  x402 paid API · 4 endpoints

• computeindex.lonestaroracle.xyz Live x402

  Energy cost per GPU-hour by US power region + regional basis (no params)

  x402 paid API · 1 endpoint

• compute.lonestaroracle.xyz Live x402

  GPU compute spot prices — best deals across Vast.ai, RunPod, AWS, Lambda + market signal + AI brief

  x402 paid API · 1 endpoint

• conch402.dylan-caponi.workers.dev Live x402

  Perform the chant: 'All hail the Magic Conch!' The club responds: 'Hooray for the magic conches!' That is all this does, and it is enough.

  x402 paid API · 1 endpoint

• concordancehq.duckdns.org Live x402

  Full-text search across every aggregated data source in one call: news, SEC filings, court opinions, academic papers, government records, and developer discussions. One query surfaces everything concordant across indepe…

  x402 paid API · 4 endpoints

• consumer.lonestaroracle.xyz Live x402

  US consumer-demand signal (retail sales)

  x402 paid API · 1 endpoint

• content.hugen.tokyo Live x402

  Extract and classify all hyperlinks from a web page — internal vs external using eTLD+1 domain matching. Returns up to 200 internal and 200 external links with counts. No web crawler setup needed. Accepts USDC payments…

  x402 paid API · 5 endpoints

• context-relay.contextrelay.workers.dev Live x402

  URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens…

  x402 paid API · 1 endpoint

• contextiq.trango-compute.com Live x402

  Token Inspector model pricing (per call) (8 paid endpoints on contextiq.trango-compute.com.)

  x402 paid API · 8 endpoints

• contextslim.friczero.com Live x402

  [MCP: fetch_result] Targeted JSONPath extraction (query param mode) from cached context reference. (2 paid endpoints on contextslim.friczero.com.)

  x402 paid API · 2 endpoints

• convert.guru Live x402

  Detects the likely real file format from filename, file creation time, file size, and the first 200 bytes of the file. Identifies common formats such as PDF, DOCX, XLSX, CSV, JPG/JPEG, PNG, WEBP, HEIC, TXT, HTML, MP3, W…

  x402 paid API · 2 endpoints

• convrgent.ai Live x402

  Create a new persistent human profile in the vault. Agent-namespaced by wallet address. Accepts initial identity, text samples, observations, and birth data. (2 paid endpoints on convrgent.ai.)

  x402 paid API · 2 endpoints

• coord.taifoon.dev Live x402

  OHLCV bars of BTC, ETH, SOL or the CME micro futures NQ, ES, YM (15s, 1m, 5m, 1h) from the Taifoon venue tape, past windows only (up to 1,000 bars a call), with a sha256 digest of the bars. The tape seals a past window,…

  x402 paid API · 7 endpoints

• cors-header-checker.underscoredone.com Live x402

  Sends a real request to any URL you provide, attaches an Origin header, and reads back all six standard cross-origin permission headers the server returns. Tells you whether cross-origin requests are enabled at all, whe…

  x402 paid API · 1 endpoint

• cot.lonestaroracle.xyz Live x402

  CFTC Commitments of Traders positioning for a market (?market=<name>)

  x402 paid API · 1 endpoint

• council.cyberwarex.com Live x402

  Put one question to a panel of 3 different AI models and get a single verdict back. Each model answers independently, then a chair synthesizes: verdict, confidence, the points they all agreed on, the dissent, and what w…

  x402 paid API · 3 endpoints

• cpi-report-us.underscoredone.com Live x402

  Gives you official United States inflation numbers from the government's BLS Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for…

  x402 paid API · 1 endpoint

• craigmbrown.com Live x402

  Fast real-time news scan across 44+ curated domains (configs/search_domain_profiles.json), every item source-attributed. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). The quick…

  x402 paid API · 12 endpoints

• crawlspur.halowerk.com Live x402

  Prüft am Objekt parameter-url den Befund Wert des X-Robots-Tags. (100 paid endpoints on crawlspur.halowerk.com.)

  x402 paid API · 12 endpoints

• creative-tim.com Live x402

  View component code after payment (2 paid endpoints on x402.creative-tim.com.)

  x402 paid API · 2 endpoints

• creativeforesight.io Live x402

  Foresight API request (9 paid endpoints on api.creativeforesight.io.)

  x402 paid API · 9 endpoints

• creator.halowerk.com Live x402

  Sorts caller-supplied placement opportunities by end time and solves the weighted non-overlapping interval problem exactly with dynamic programming. It does not buy inventory, predict conversion, enforce platform policy…

  x402 paid API · 10 endpoints

• crypto-sentiment-x402.onrender.com Live x402

  Real-time crypto sentiment for a ticker symbol (e.g. BTC, ETH, SOL) from 9 crypto news RSS outlets (CoinDesk, Cointelegraph, Decrypt, Bitcoin Magazine, The Block, CryptoSlate, NewsBTC, CryptoPotato, The Defiant) and the…

  x402 paid API · 2 endpoints

• cryptodataapi.com Live x402

  Issuer-aggregated daily spot ETF net flows for btc, eth or sol. (7 paid endpoints on cryptodataapi.com.)

  x402 paid API · 7 endpoints

• cryptoetfsentinel.com Live x402

  Crypto ETF Sentinel — Side-by-side comparison of ALL trading US spot crypto ETFs: POS AM profile, XBRL financials, market data and Fund Health metrics (premium/discount, tracking, implied NAV) per fund. Use when choosin…

  x402 paid API · 12 endpoints

• crypto.forgemesh.io Live x402

  Returns current market risk state, per-symbol signal streaks, and active cooldown timers — use it as a pre-trade risk gate before acting on any signal. Typical agent tasks: check if BTC or ETH is in cooldown before a tr…

  x402 paid API · 12 endpoints

• crypto.openverbs.com Live x402

  Total value locked (USD) for one DeFi protocol by DefiLlama slug or name (e.g. "aave-v3", "lido", "uniswap-v3"): current TVL, per-chain TVL breakdown, 1h/1d/7d TVL change, category, chains, token symbol and market cap.…

  x402 paid API · 12 endpoints

• cryptoshark.duckdns.org Live x402

  Current USD market snapshot for a supported cryptocurrency symbol or CoinGecko asset name

  x402 paid API · 1 endpoint

• cryptyx.ai Live x402

  The entry point for agents landing on CRYPTYX. Returns the full signal registry (every atomic and composite signal, all versions) with class, horizon, geometry, parameters, 30-day trigger stats, three-axis health grades…

  x402 paid API · 12 endpoints

• cueframe.ai Live x402

  Validate a composition body without saving it (dry-run) (3 paid endpoints on api.cueframe.ai.)

  x402 paid API · 3 endpoints

• curl-http-request.underscoredone.com Live x402

  Send an HTTP request to any URL from our servers and receive the full response — including the status code, all response headers, and the body content. Supports GET, POST, PUT, PATCH, DELETE, and HEAD. Automatically fol…

  x402 paid API · 1 endpoint

• currency-api-production-4a8d.up.railway.app Live x402

  Current price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko). (3 paid endpoints on currency-api-production-4a8d.up.railway.app.)

  x402 paid API · 3 endpoints

• cycle.lonestaroracle.xyz Live x402

  US inventory & production cycle signal (bullwhip gauge)

  x402 paid API · 1 endpoint

• dailyelo.com Live x402

  Live reliability feed of x402 endpoints on Base: which services are up, return a valid 402 envelope, and how fast — free-probed across the CDP Bazaar catalog. A real share of listed endpoints are broken/misconfigured; p…

  x402 paid API · 9 endpoints

• darrylbots.com Live x402

  Darrylbots paid research: Standard Stock Screen: Quality, Momentum, and Durable Execution (3 paid endpoints on darrylbots.com.)

  x402 paid API · 3 endpoints

• data.finery.cc Live x402

  Search Singapore MOE schools by name or postal code (optional level filter). Results include the school directory joined with subjects offered, CCAs, MOE programmes and distinctive programmes. (2 paid endpoints on data.…

  x402 paid API · 2 endpoints

• dataforagents.net Live x402

  DataForAgents — Steam catalog search for agents (name, genre, price filters) (2 paid endpoints on dataforagents.net.)

  x402 paid API · 2 endpoints

• data.greeneris.io Live x402

  Hourly weather forecast for any point on Earth from Open-Meteo (blend of ECMWF/GFS/ICON models, refreshed hourly; data CC-BY 4.0). Query: ?latitude=48.8566&longitude=2.3522&hourly=temperature_2m,precipitation,wind_speed…

  x402 paid API · 12 endpoints

• data.japanagent.dev Live x402

  Company name search across jurisdictions. jurisdiction=lei searches the global GLEIF LEI database (all countries); jurisdiction=jp searches the official Japan National Tax Agency corporate registry. Returns registered l…

  x402 paid API · 3 endpoints

Related capabilities

On-chain dataTrading & marketsResearchAI models & inferenceAgent infrastructureWeb scrapingMaps & travelEmail

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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