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

• tensegrity-control-mesh.onrender.com Live x402

  Deterministic structural failure inspection of a caller-declared control mesh. Structural evidence only; never authorizes execution. 0.01 USDC per request.

  x402 paid API · 1 endpoint

• tensorfeed.ai Live x402

  Agent morning brief. One paid call returns the last 24 hours of AI pricing changes, new and removed models, service-status incidents, and top news headlines. The endpoint an agent calls on boot. (9 paid endpoints on ten…

  x402 paid API · 9 endpoints

• tereno.xyz Live x402

  What is the current state of Base? Latest block number, timestamp, base fee and suggested gas fees in a single cheap call with no parameters — the fastest way to test an x402 payment loop end to end. Positive-sum by des…

  x402 paid API · 3 endpoints

• terradeed.co.uk Live x402

  Clean, LLM-ready markdown from any URL. JavaScript rendering included. Feed web content directly into agent context without parsing HTML. (2 paid endpoints on api.terradeed.co.uk.)

  x402 paid API · 2 endpoints

• text.openverbs.com Live x402

  Diff two texts. The default `unified` mode returns a unified-diff patch string; `lines`, `words`, and `chars` modes return a structured array of added/removed/unchanged parts. (4 paid endpoints on text.openverbs.com.)

  x402 paid API · 4 endpoints

• the-stall.intuitek.ai Live x402

  Earnings calendar for upcoming US stock reports — earnings date, EPS estimate, pre/post-market timing. Filter by ticker for per-company lookups, or scan a date window (1–90 days ahead) for calendar-driven research autom…

  x402 paid API · 4 endpoints

• thetrustlayer.xyz Live x402

  Agent profile lookup. Returns trust score, component breakdown, feedback counts, and metadata for any ERC-8004 agent. (2 paid endpoints on api.thetrustlayer.xyz.)

  x402 paid API · 2 endpoints

• thevaultreport.com Live x402

  CFTC Commitments of Traders — weekly disaggregated futures positioning by commodity: managed-money long/short/net, producer-merchant, swap-dealer, and open interest. 20-year history, cleaned and canonicalized from the C…

  x402 paid API · 4 endpoints

• tick.hugen.tokyo Live x402

  Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88% tighter spreads than any single source. Includes quality metadata (fresh_sources, quality_state, spread_vs_s…

  x402 paid API · 3 endpoints

• tls.openverbs.com Live x402

  Open an SSL/TLS connection to a host and report its certificate — issuer, subject, validity window, days remaining, SANs, fingerprint and trust status.

  x402 paid API · 1 endpoint

• toll402.dev Live x402

  Offline structural validator for an Indian CIN (Corporate Identity Number, 21 characters). Parses and checks: listing status letter (L/U), 5-digit NIC industry code, 2-letter state code (against the known MCA state-code…

  x402 paid API · 12 endpoints

• tollbooth-fdic-verify.sjwilliams8.workers.dev Live x402

  Before your agent trusts, cites, or transacts with a U.S. bank: verify it is actually FDIC-insured, for $0.01, against the FDIC's own BankFind Suite records, synced daily. Look up by institution name (fuzzy, word-order-…

  x402 paid API · 1 endpoint

• toolbelt402.tpoborne.workers.dev Live x402

  Check a URL before fetching it: is it alive, final URL after redirects, HTTP status, content type, HTML title, and whether robots.txt allows your user-agent. Link checker and fetch preflight for agents. (2 paid endpoint…

  x402 paid API · 2 endpoints

• toolrail.dev Live x402

  Current VAT rates for supported European countries (EU-27 + UK, CH, NO...). Standard, reduced and super-reduced rates, provided through the third-party vatnode dataset; verify applicability for your transaction. (30 pai…

  x402 paid API · 12 endpoints

• tools.halowerk.com Live x402

  Ordnet eine Warenbeschreibung der sechsstelligen Harmonisierten Nomenklatur der Weltzollorganisation zu, 6.940 Positionen. Versteht deutsche Warenbezeichnungen einschliesslich zusammengesetzter Woerter ueber einen Fachw…

  x402 paid API · 12 endpoints

• tools.ipintel.ai Live x402

  DNS Lookup API. Resolve domain DNS records and receive structured JSON with A, AAAA, MX, NS, TXT, CAA, and SOA records. Useful for agents, developers, domain diagnostics, email setup checks, DNS troubleshooting, and inf…

  x402 paid API · 8 endpoints

• torii-gateway-production.ichis-lab.workers.dev Live x402

  Tell whether a given date is a Japanese business day. Japanese national holidays and business-day calculations derived from the Cabinet Office official CSV. Returns holidays for a given year, plus business-day arithmeti…

  x402 paid API · 1 endpoint

• touchstone.locomot.io Live x402

  Timelock encryption (tlock / encrypt-to-the-future): seal a payload toward a future drand round — undecryptable by anyone, including us, until that round lands; or open a landed seal. For sealed-bid auctions, commit-rev…

  x402 paid API · 12 endpoints

• trabotpro.it Live x402

  Hero SKU: Pearl Research L1 telemetry (pearld RPC, community nodes, poll history). Free trial: GET /api/a2a/pearl/status (3 paid endpoints on trabotpro.it.)

  x402 paid API · 3 endpoints

• trade.chainverdict.xyz Live x402

  Resolve a GTIN/EAN prefix to its GS1 Member Organisation (not country of origin). (8 paid endpoints on trade.chainverdict.xyz.)

  x402 paid API · 8 endpoints

• trade.lonestaroracle.xyz Live x402

  US trade-flow + tariff signal by commodity

  x402 paid API · 1 endpoint

• tradesnack.com Live x402

  Multi-indicator technical analysis (SMA/EMA crosses, Bollinger, RSI, candlestick patterns, support/resistance, trendlines, experimental Elliott Wave) for any crypto pair.

  x402 paid API · 1 endpoint

• tradesonar.io Live x402

  List markets with price and open interest (11 paid endpoints on api.tradesonar.io.)

  x402 paid API · 11 endpoints

• trading-perps.vercel.app Live x402

  Latest ENSO index bundle from El Niño Market Watch: weekly Niño 1+2/3/3.4/4 SST anomalies (NOAA CPC), RONI, Troup SOI (BOM) and weekly IOD/DMI — recent tails with exact source URLs. (4 paid endpoints on trading-perps.ve…

  x402 paid API · 4 endpoints

• transit.agentic-jp.com Live x402

  Directory of Japanese (JP) rail operators and their lines, with canonical ids and Japanese/English names. Use to discover valid line and operator identifiers for the other endpoints. (3 paid endpoints on transit.agentic…

  x402 paid API · 3 endpoints

• transitpulse.theaslangroupllc.com Live x402

  Rail/coach/ferry/cruise compensation eligibility — UK Delay Repay, EU Rail 2021/782 (25/50%), EU/UK ferry 1177/2010, EU coach 181/2011, US FMC cruise refunds (46 CFR 540, 3-day rule), Athens Convention ship baggage — pl…

  x402 paid API · 1 endpoint

• travel-agent.forgemesh.io Live x402

  Returns active emergency/disruption signals (earthquakes, weather alerts, wildfires, storms, water levels) near a lat/lon, with a status flag and calm relay guidance for travelers. (4 paid endpoints on travel-agent.forg…

  x402 paid API · 4 endpoints

• travel.forgemesh.io Live x402

  Fare Pulse — cheapest live fares from a major US hub, cached snapshot. (2 paid endpoints on travel.forgemesh.io.)

  x402 paid API · 2 endpoints

• truevaluerankings.com Live x402

  Custom-weight rerank of every cryptocurrency covered by True Value Rankings: the full TVR table recomputed with the caller's own weights for the 8 fundamental metrics, using TVR's non-public score transformation. $0.05…

  x402 paid API · 2 endpoints

• trust.nsgoods.org Live x402

  Cross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call…

  x402 paid API · 2 endpoints

• trustsource.cc Live x402

  Check whether a domain's TLS/SSL certificate is valid, trusted, and not expiring before connecting to it. Performs a live handshake and returns a 0–100 score and tier (VALID/WEAK/EXPIRING/EXPIRED/UNTRUSTED/INVALID) with…

  x402 paid API · 2 endpoints

• tryskopos.xyz Live x402

  Live Polymarket odds and volume — by topic, or today's biggest movers if no topic given. (2 paid endpoints on www.tryskopos.xyz.)

  x402 paid API · 2 endpoints

• twitr.sh Live x402

  Read live X/Twitter data: look up a single tweet or user profile, batch-read up to 100 tweets or users at once, check whether one account follows another, fetch trending topics by region, extract a long-form article, or…

  x402 paid API · 4 endpoints

• twitter.use.x402atlas.com Live x402

  Search Twitter/X with structured filters or raw advanced-search syntax. Returns up to 20 normalized tweets with full text, author details, engagement metrics and a pagination cursor. (21 paid endpoints on twitter.use.x4…

  x402 paid API · 12 endpoints

• uk-cm-kg.ai Live x402

  One paid call on uk-cm-kg.ai 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 an…

  x402 paid API · 1 endpoint

• unicode.openverbs.com Live x402

  Reverse lookup: resolve a Unicode character name (e.g. 'SNOWMAN', 'CJK UNIFIED IDEOGRAPH-4E2D', 'HANGUL SYLLABLE GA') to its code point. Loose whitespace/case matching. An unknown name is a successful `found:false`. (4…

  x402 paid API · 4 endpoints

• unit.openverbs.com Live x402

  List the supported units and their metadata (abbreviation, measure, system, singular/plural names), optionally filtered to a single measure — a discovery endpoint for choosing valid `from`/`to` values. (2 paid endpoints…

  x402 paid API · 2 endpoints

• unwrap.use.x402atlas.com Live x402

  Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a…

  x402 paid API · 1 endpoint

• uptime.cyberwarex.com Live x402

  Fleet-wide uptime statistics for every monitored endpoint: uptime percentage, average response time, and total check count over 1, 7 and 30 day windows (plus an optional custom window). Use it to get an at-a-glance reli…

  x402 paid API · 1 endpoint

• url-uptime-checker.underscoredone.com Live x402

  Checks whether a website or web address is currently reachable and reports how fast it responded.

  x402 paid API · 1 endpoint

• url2md.io Live x402

  PDFs, JavaScript pages and ordinary HTML as clean Markdown. Pays a page's x402 toll for you. Follows robots.txt.

  x402 paid API · 1 endpoint

• url.openverbs.com Live x402

  Two directions over query strings. action='parse' decodes a query string (with or without a leading '?') into an object, collapsing repeated keys into arrays. action='build' encodes a params object into a query string,…

  x402 paid API · 4 endpoints

• us-cm-kg.ai Live x402

  One paid call on us-cm-kg.ai 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 an…

  x402 paid API · 1 endpoint

• usenami.io Live x402

  Funding rates per venue for one crypto perpetual, or the whole cross-venue set in one call. Major CEX and DEX venues — Binance, Bybit, OKX, Bitget, Gate.io, KuCoin, Hyperliquid, Paradex, Orderly, Lighter and more. Each…

  x402 paid API · 9 endpoints

• uuid-forge.saastemly.com Live x402

  Returns 1-100 random UUID v4 strings (RFC 9562): ?count=1..100 (default 1), ?format=uuid|urn|hex|int (default uuid). (2 paid endpoints on uuid-forge.saastemly.com.)

  x402 paid API · 2 endpoints

• vape-x402.vapex402.workers.dev Live x402

  VAPE dex_volumes — DEX trading volume on a chain by venue, each with its logo (default Base) — real trading activity across the chain's exchanges. (15 paid endpoints on vape-x402.vapex402.workers.dev.)

  x402 paid API · 12 endpoints

• vaults.fyi Live x402

  Retrieves a filtered list of vaults with their basic information including address, network, associated asset details, and transactional support status. (6 paid endpoints on api.vaults.fyi.)

  x402 paid API · 6 endpoints

• vaunt-dispatch-production.up.railway.app Live x402

  True cost of trading xyz:COIN on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-tr…

  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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