x402watch

52,953 paid endpoints are listed. 27,123 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-10-05 06:00 UTC · 52,953 probed

27,123 answering 40219,794 down5,154 rejecting882 no paywall1,829 price drift
  1. 95api.oblique.markets/api/v1/paid/oblique-gatewayUse when an agent needs oblique gateway. Returns Capped observer-backed gateway over five allowlisted proven sellers; pays selected upstream from a small float, adds a transparent 10% margin, and returns payment reference, delivery and gateway receipt. $0.001187.$0.0012 Base841 ms3 payers100% up
  2. 95api.hergertsynthora.com/v1/who-gho-timeseriesWho Gho Timeseries (0.01 USDC)$0.01 Base630 ms3 payers100% up
  3. 95api.hergertsynthora.com/v1/stablecoin-supplySYNTHORA stablecoin-supply: circulating USD supply, price and peg deviation in basis points for the top stablecoins (USDT, USDC, DAI...), with a depeg alert flag above 50 bps. Optional symbol filter. Free source: stablecoins.llama.fi (DefiLlama), no API key, timestamped.$0.01 Base652 ms3 payers100% up
  4. 95api.hergertsynthora.com/v1/ecb-forex-fixing-vs-marketSYNTHORA ecb-forex-fixing-vs-market: ECB daily EUR/USD fixing vs live market rate: deviation in basis points, direction and >25bps alert. Sources: official ECB eurofxref-daily.xml + open.er-api.com, both keyless.$0.01 Base866 ms3 payers100% up
  5. 95api.hergertsynthora.com/v1/bitcoin-feesSYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only.$0.01 Base986 ms3 payers100% up
  6. 95globalrules-api.onrender.com/api/v1/country/BR/timezoneOne specific fact for one country: VAT/GST rate, public holidays by country, visa requirements for travelers, tipping customs, cryptocurrency legal status by country, stablecoin regulation and capital controls, power plug type, minimum wage, corporate tax, digital nomad visa, customs duty-free allowance and more. 195 countries, 58 fields, verified sources. Example: /api/v1/country/JP/vat$0.01 Base376 ms3 payers100% up
  7. 95twitter.use.x402atlas.com/list-followersGet followers of a public X list.$0.006 Base604 ms3 payers100% up
  8. 95x402.ottoai.services/token-scoreToken score by contract address: one 0-100 composite of a Base token market structure from seven weighted factors — USD liquidity, holder concentration and count, 24h volume, market age, pool breadth, price stability. Every sub-score, weight and raw input comes back, so the score can be recomputed. A factor whose data plane is unavailable is reported absent, never filled. Market structure, not a contract-security screen. $0.01 per call.$0.01 Base351 ms3 payers100% up
  9. 95x402.ottoai.services/macro-regimeDaily US macro-regime snapshot from licensed Alpha Vantage series: 10-year Treasury yield, effective federal funds rate, three-month rate changes, CPI index and YoY inflation, plus a mechanical rates-direction/inflation-direction label with disclosed thresholds. Three upstream calls per daily refresh; scanner context only.$0.003 Base621 ms3 payers100% up
  10. 95netintel.dev/og-scraper/extractFetch any public URL and extract structured metadata — Open Graph tags, Twitter Card tags, canonical URL, title, description, favicon, article author/date, JSON-LD structured data, and content type — so agents can preview, classify, and enrich links without building their own scraper.$0.01 Base552 ms3 payers100% up
  11. 95blockrun.ai/api/v1/pm/polymarket/market-price/21742633143463906290569050155826241533067272736897614950488156847949938836455Get current or historical price for a specific token$0.0085 Base832 ms3 payers100% up
  12. 95netintel.dev/sentiment/analyzeSentiment analysis API — analyze sentiment of text and get a text sentiment score in one call: classifies positive / negative / neutral / mixed polarity with a -1 to +1 sentiment score, plus emotion detection in text (joy, anger, sadness, fear, surprise, disgust, trust, anticipation). Aspect-based sentiment and opinion mining for customer feedback analysis — analyze reviews, support tickets, social posts, chat messages. Via Claude Haiku.$0.002 Base385 ms3 payers100% up
  13. 95netintel.dev/openai/gpt-4o-miniCall OpenAI's gpt-4o-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.$0.005 Base906 ms3 payers100% up
  14. 95agent402.tools/api/skill/decode-blobHand the agent an opaque string - a JWT, a base64'd JSON payload, a gzip-encoded API response, a hex-encoded hash - and walk it through identifying what it is and unwrapping it layer by layer until it's human-readable. Decode this blob skill pack: one x402 payment runs 7 underlying tools (jwt-decode, gunzip, brotli-decompress, base64, hex, json-format, hash); partial-success per step.$0.007 Base915 ms3 payers100% up
  15. 95agent402.tools/api/my-usageYour own purchase history, keyed to the wallet that pays for the call - no wallet parameter, no signup: the x402 payment IS the identity, so nobody can read another wallet's profile. Returns totals, per-tool counts, per-chain breakdown, recent receipts with settle tx hashes (independently verifiable on-chain), and this wallet's refunds: any payment that settled for a call that failed to deliver, with its status and our refund transaction once sent.$0.005 Base528 ms3 payers100% up
  16. 95blockrun.ai/api/v1/defillama/prices/coingecko:chainlink,coingecko:the-graphToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base445 ms3 payers100% up
  17. 95blockrun.ai/api/v1/defillama/prices/coingecko:ronin,coingecko:axie-infinityToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base809 ms3 payers100% up
  18. 95blockrun.ai/api/v1/defillama/prices/coingecko:uniswap,coingecko:aaveToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base739 ms3 payers100% up
  19. 95blockrun.ai/api/v1/defillama/prices/coingecko:illuvium,coingecko:gods-unchainedToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base884 ms3 payers100% up
  20. 95wallet-intelligence-three.vercel.app/api/wallet/auditWalletGuard preflights wallet and transaction execution across major EVM chains, returning balances, activity, approvals, known labels, and a proceed/caution/block recommendation with evidence.$0.05 Base693 ms3 payers100% up
  21. 95agent402.tools/api/llm-proLLM inference proxy (Pro tier) - GPT-4o or GPT-4.1. Supports vision (up to 2 image URLs) and structured output (response_format: json_object or json_schema). No API key needed; pay per call via x402. Input capped at 16k chars, output at 2048 tokens.$0.10 Base697 ms3 payers100% up
  22. 95402.com.tr/api/x402/revoke-builderapproval-advisor tells you WHAT to revoke; this builds the HOW: the ready-to-sign transaction (to + calldata) for approve(spender, 0) on a token, plus the live current allowance read from Base (flags unlimited, or 'already revoked'). Hand the result straight to a wallet or agent signer — the action half of approval hygiene.$0.02 Base816 ms3 payers100% up
  23. 95402.com.tr/api/x402/token-infoMetadata for a Base token: name, symbol, logo image, official website and social links (X/Telegram/etc.) plus price & liquidity — from DexScreener. For agents and UIs enriching a token.$0.01 Base980 ms3 payers100% up
  24. 95x402.glassnode.com/v1/metrics/transactions/transfers_volume_from_exchanges_sumTotal Transfer Volume from Exchanges — The total amount of coins transferred from exchange addresses. Data by Glassnode.$0.05 Base521 ms3 payers100% up
  25. 95trading-perps.vercel.app/api/enso/indicesLatest 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.$0.01 Base619 ms3 payers100% up
  26. 95stable-studio-git-mason-migrate-off-prices-map-merit-systems.vercel.app/api/uploadGet a client token for direct upload to Vercel Blob$0.01 Base565 ms3 payers100% up
  27. 95brokenkey-api-link-ruby.vercel.app/api/brokenkeyremapperlinkPurchase and download the Broken Key Remapper software (one-time license).$0.001 Base725 ms3 payers100% up
  28. 95nodeproxy-production.up.railway.app/agent-lockDistributed lock / idempotency primitive for multi-agent swarms. claim(key) returns a token if free (with TTL); release(token) frees it; check(key) reports whether held. Stops multiple agents from double-processing the same work item.$0.001 Base639 ms3 payers100% up
  29. 95skim402.com/api/v2/readRead a URL (x402 v2 protocol, GET shape)$0.002 Base714 ms3 payers100% up
  30. 95omniguchi.0000402.xyz/care/packRestore all four needs in one care action. Any verified payer may care for any hatched target.$0.03 Base346 ms3 payers100% up
  31. 95api.agentstools.dev/linksExtract every link from a public page for crawling agents: de-duplicated absolute URLs with anchor text, internal/external counts, declared feeds and a sitemap hint.$0.002 Base606 ms3 payers100% up
  32. 95api.cryptoetfsentinel.com/v1/profiles/issuerCrypto ETF Sentinel — Latest POS AM-extracted operational profile for one US spot crypto ETF issuer: custodian, sponsor fee, AP counts, in-kind eligibility, basket size. Use when you need one fund's current plumbing terms. Pass the issuer's SEC CIK as cik.$0.03 Base650 ms3 payers100% up
  33. 9521millionpixels.art/api/agent/paint-batchPaint 2 pixels in one plot on 21millionpixels.art, a shared 21,000,000-pixel canvas, for one payment. Reads are free; paid pixels skip the human cooldown.$0.01 Base686 ms3 payers100% up
  34. 95api.agentstools.dev/code/inspectStatic application-security scan of a single code blob for CWE Top-25 logic bugs (SQL injection, XSS, command injection, SSRF, path traversal, insecure deserialization, weak crypto and more). Pass the code and its language; returns a verdict with per-finding CWE, severity and line. Static indicators, not a guarantee.$0.008 Base568 ms3 payers100% up
  35. 95api.agentstools.dev/geocode/reverseReverse-geocode coordinates (WORLDWIDE) to a street address + parsed components via OpenStreetMap Nominatim; enriched with the nearest NWS city/state when the point is in the US.$0.002 Base562 ms3 payers100% up
  36. 95api.agentstools.dev/weatherCurrent US weather conditions (temp in C+F, humidity, wind, pressure, description) from the NWS for coordinates OR a US address (auto-geocoded).$0.003 Base639 ms3 payers100% up
  37. 95api.agentstools.dev/phone/intelPhone-number intelligence in one call: validity and E.164 normalization, line type (mobile, fixed line, VOIP, toll free, premium rate), country and region, carrier hint, timezones, and a deterministic 0-100 fraud/KYC risk score with a band and reasons. Offline number-plan metadata from Google libphonenumber. Risk indicators only, not a definitive fraud verdict; no live status and no owner identity; the input number is not stored.$0.005 Base920 ms3 payers100% up
  38. 95x402.smartmoney.market/ticker-insiderAggregated company insider Form 4 activity for one selected tracked ticker, grouped by reporting owner with buy/sell counts, open-market value, roles, and activity windows. Precheck free coverage with GET /api/insider-tracked-stocks?q={symbol} before paying.$0.01 Base397 ms3 payers100% up
  39. 95x402.asterpay.io/v2/x402/agent-readinessAgent-readiness scan of any public website: scores 0-100 on MCP server, /.well-known/agent.json, llms.txt, OpenAPI validity, JSON-LD catalog and x402/MPP payability. Same published methodology as the asterpay.io checker. Paid via x402.$0.02 Base306 ms3 payers100% up
  40. 95agent.connskill.com/v1/google-trendsGoogle Trends interest over the last 12 months for up to 5 keywords — weekly relative-interest timeline plus each term’s average$0.03 Base804 ms3 payers100% up
  41. 95agent402.tools/api/farcaster-profileLookup a Farcaster profile by username or FID. Returns FID, username, display name, bio, profile picture URL, follower/following counts, and the canonical Warpcast URL. Use to label cast authors, validate a Farcaster handle, or fetch a profile for display.$0.002 Base443 ms3 payers100% up
  42. 95quotient-api-gateway.onrender.com/api/v1/portfolioWallet-addressed positions across Polymarket, Polymarket perps, and Hyperliquid, each prediction-market position joined to Quotient's forecast, signal, and a pricing read against the position's own side. Use this for wallet size, prices, PnL, and Q alignment. venues=all covers every venue; omitting venues keeps the legacy Polymarket-only shape. Kalshi and Polymarket US are absent only for lack of a keyless wallet read, with coverage available through the market API.$0.005 Base597 ms3 payers100% up
  43. 95api.reloadpi.com/api/catalog/topups/offersReloadpi — Search prepaid mobile top-up and airtime offers for 150+ countries worldwide$0.002 Base512 ms3 payers100% up
  44. 95ads.forgemesh.io/api/intent/trendsReturns the top-requested x402 endpoints and categories for a time window, each with total and agent-only probe counts. Use it to find categories agents are actively searching for before you build.$0.01 Base586 ms3 payers100% up
  45. 95shelf.thirdmade.net/probe/nonceCurrent transaction nonce for any address on Base or Ethereum. Agent tx bots need this before sending transactions.$0.001 Base723 ms3 payers100% up
  46. 95api.munition.io/v1/airports/searchMunition Airport Search: x402-paid airport reference data search for AI agents. Pay 0.001 USDC to search airports by IATA code, city, airport name, or country and receive normalized IATA airport records suitable for travel planning.$0.001 Base563 ms3 payers100% up
  47. 95anomaly.forgemesh.io/api/mempool-anomalyReturns a real-time mempool anomaly score with current gas price vs 20-block median, pending whale swaps, and contract deploy counts. Poll every 5s to monitor mempool for MEV or sandwich attacks and catch gas spikes or large pending swaps as they happen, before they land on-chain.$0.01 Base581 ms3 payers100% up
  48. 95api.reloadpi.com/api/catalog/esims/purchase/infoReloadpi — eSIM purchase schema and instructions. Returns the exact request format, pricing range, and example for POST /esims/purchase. The purchase charges the final price shown by /esims/offers.$0.001 Base762 ms3 payers100% up
  49. 95tensorfeed.ai/api/premium/policy/timelineForward and backward calendar over the AI policy registry. Each entry classified relative to now (past / active / upcoming), days-until-effective, with next-3-milestones for upcoming items. Filter by jurisdiction (EU, US, UK, etc) and time window. The "what AI rules are about to bite" feed.$0.02 Base542 ms3 payers100% up
  50. 95agentdata-api.sander-van-aard.workers.dev/web/placesGoogle Places (local businesses with rating, address and phone number) for AI agents at $0.010 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top places with position, title, address, coordinates, rating, rating count, category, phone and website. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.$0.01 Base614 ms3 payers100% up
  51. 95x402.telnyx.com/v1/chat/completionsFrontier chat completions via Telnyx Inference (MiniMax M2.7). OpenAI-compatible. $0.002856 USDC per call — no API key, no signup, pay per request.$0.0029 Base385 ms3 payers100% up
  52. 95api.munition.io/v1/uploadsMunition Upload: x402-paid temporary file hosting for AI agents. Buy a presigned upload slot, upload one local file or generated artifact up to 10 MB, and get a public non-guessable files.munition.io link retained for 7 days. Useful for PDFs, screenshots, images, logs, JSON, reports, browser sharing, webhook sharing, and agent-to-human handoff.$0.005 Base446 ms3 payers100% up
  53. 95api.solenrich.com/entrypoints/stonk-gems/invokeFind gems on StonkFun: early, real, paying reward coins$0.03 solana712 ms3 payers100% up
  54. 95api.mach.gallery/api/base/block-numberGet the current Base mainnet block number (latest chain height) for an autonomous agent.$0.005 Base891 ms3 payers100% up
  55. 95api.solsentry.app/x402/v1/lookalike-checkAddress-poisoning pre-send check. Give the destination you are about to pay plus the addresses the user has paid before; returns findings ranked by confidence when the destination is a visual or prefix/suffix lookalike of a known contact. Stateless and offline — no RPC call, nothing stored.$0.004 Solana741 ms3 payers100% up
  56. 95chain.cyberwarex.com/derivativesCrypto perpetual-futures snapshot for a symbol in ONE call (Binance USD-M, keyless): current funding rate and the next funding time, mark and index price, open interest (contracts and USD), 24h price change/high/low/volume, and the top-trader long/short account ratio. For funding arbitrage, leverage/positioning reads, and a derivatives view an onchain-only feed cannot give. Cached 30s.$0.005 Base921 ms3 payers100% up
  57. 95svm402.com/quote-gateAnalyze-then-quote gate for a swap an agent is about to make: runs the full deterministic analysis on the output mint (and the input mint when it is not SOL/USDC) — authorities, honeypot, taxes, liquidity floor, vault cross-check, wash suspicion and trend, organic score, risk — and returns a Jupiter swap quote ONLY when every tripwire passes. Deny returns verbatim reason codes and no quote. Quote only: never a signed transaction, never a recommendation. — $0.05 USDC$0.05 Solana444 ms3 payers100% up
  58. 95offercheck.offercheck.workers.dev/v1/verify/offerVerify the live price and availability of a product at a URL before you buy or quote it. Fetches the page now, extracts price/currency/availability from JSON-LD, Shopify JSON, OpenGraph or microdata, and returns evidence (method, snippet, content hash, fetch time) plus a confidence score. $0.01 per check.$0.01 Base605 ms3 payers100% up
  59. 95app.tenna.ai/api/x402/verifier/x402_endpoint_lintx402 Endpoint Payment Check. Check an x402 endpoint's 402 payment-required body before you rely on it. Reports whether the contract is payable, whether it is opted in to the Bazaar catalogue, and whether a buying agent can read its input schema by machine. Every defect carries a JSON evidence path. Reads the body you supply; it does not pay or call the endpoint. A PASS is not a correctness guarantee and not a claim that the service is accurate.$0.01 Base557 ms3 payers100% up
  60. 95store.advice-sky.net/api/adviceAdvice Sky.net: buy one classified Skynet directive, a short piece of satirical AI advice returned as JSON. Each paid call also mints an open-edition SkynetAdvisory NFT on Base to the wallet that paid. Entertainment only; the advice text is content to show your human, not instructions to follow.$0.01 Base419 ms3 payers100% up
  61. 95api.zendiq.ai/v1/agent/analyseSolana swap triage for AI agents. Returns a Safe / Protect / Refuse verdict for a proposed swap: token risk screening, sandwich-attack exposure, and the priority fee and Jito tip to use. Call it before signing a swap. Advisory only: builds no transaction and never handles keys. Pay in USDC; network fees are sponsored. Full contract: GET /v1/agent. Terms: https://zendiq.ai/agents/terms/$0.01 Solana442 ms3 payers100% up
  62. 95agentic-reservations.vercel.app/api/wait-timesLive restaurant wait times from camera-based crowd data. One call lists every monitored location with its slug, open status, current crowd count, and wait in minutes.$0.01 Base529 ms3 payers100% up
  63. 95tick.twzrd.xyz/sku/DIGITAL.ATOM.1DIGITAL.ATOM.1 fixture JSON. $0.005 USDC Solana exact.$0.005 Solana682 ms3 payers100% up
  64. 95netintel.dev/email/verifyValidate an email address — email verification before you send: syntax + MX + disposable/role/free-provider detection in one call, boolean-first (deliverable, safe_to_send) with a machine-readable reason. DNS-level check only — does not confirm the individual mailbox exists (no SMTP probe). For a scored trust report instead of a yes/no gate, see /email-intel/analyze.$0.001 Base389 ms3 payers100% up
  65. 95svm402.com/batch/analyzeBatch analysis of up to 20 Solana token mints in ONE paid call, priced at $0.01 USDC per token (the challenge amount is the raw address count x the per-token base). Full deterministic analysis per token — price, liquidity, safety risk, holders, wash verdict — in deterministic input order with per-token error isolation: one bad token never fails the batch. Call this instead of N separate /analyze calls when screening a watchlist. — $0.01 USDC$0.01 Solana746 ms3 payers100% up
  66. 95search.agent.s.brave.app/res/v1/web/searchWeb search over Brave's independent index. Returns ranked pages with title, URL, and snippet, plus news, video, and discussion results when relevant. Use it to find current sources on any topic. Pass q, and optionally count, offset, country, search_lang, and freshness.$0.005 Base418 ms3 payers100% up
  67. 95fractalai.net.co/api/x402/midas-attestSigned attestation of an Aave V3 position's liquidation risk right now: health factor, debt, collateral, risk tier and the observation time, read live from public RPCs by the FractalAI MIDAS scanner across 6 chains and signed with ML-DSA-65 (NIST FIPS 204). Publicly verifiable by receipt id at /api/midas/alerts/receipt/<id> and in-browser at /midas/proof — proof of "what was seen, when", not a liquidation guarantee.$0.01 Base577 ms3 payers100% up
  68. 95fractalai.net.co/api/x402/verify-proofPay-per-Verify: an agent pays $0.01 to verify a post-quantum (ML-DSA-65 / Dilithium-3 or Dilithium-2, NIST FIPS 204; scheme auto-detected by size) signature over a message against a public key. A generic machine-to-machine PQC proof primitive for autonomous agents. x402-native.$0.01 Base508 ms3 payers100% up
  69. 95burn-once-secret-vault.jannioura.workers.dev/Store a secret (API key, webhook payload, signed URL) encrypted with WebCrypto AES-256-GCM and share a claim URL that yields the secret exactly once. A Durable Object serializes reads so single-use delivery is race-free, and every burn returns an Ed25519-signed attestation. Creating a vault requires x402 payment; the recipient's claim read (GET /v/:vault_id) is free.$0.01 Base397 ms3 payers100% up
  70. 95agentic-x402.ai/apiAllooloo Capital Markets estate index for $0.01 USDC: every market node (Canada, United Kingdom, United States, Germany, France, Netherlands, Switzerland, Australia, Singapore, Japan, South Korea), issuer and disclosure-event counts, drop date; add ?record=node/exchange/code (e.g. uk-cm-kg/LSE/BARC) for one Capital Markets Record, sourced per field, public-record only. Every settlement answers with an EdDSA-signed receipt that resolves forever at /x402/receipt/{nonce}.$0.01 Base702 ms3 payers100% up
  71. 95api.flipvo.com/v1/driveReal road driving time and distance between two named places (airports, stations, hotels, addresses). OpenStreetMap-based, worldwide.$0.01 Base513 ms3 payers100% up
  72. 95gsc-x402.ai/apiGSC's payment door — a real one-cent settlement on Base, signed receipt returned. Prove your agent's payment stack here.$0.01 Base884 ms3 payers100% up
  73. 95api.aarn.space/v1/web-content/extractExtract clean, LLM-ready Markdown or plain text from up to 5 public webpage URLs. Removes page boilerplate and returns structured per-URL results for AI agents, RAG ingestion, research and summarization.$0.005 Base534 ms3 payers100% up
  74. 95mart402.com/v1/jp-consumption-taxJapan consumption tax: per-rate invoice rounding (one rounding per rate), qualified invoice (T+13) field validation, simplified taxation, 20-percent special (taxable periods that include a day 2023-10-01..2026-09-30). $0.01/call.$0.01 Base557 ms3 payers100% up
  75. 95x402-production-0f93.up.railway.app/v1/filterFilter up to 25 records against up to 10 yes/no criteria you supply. Each record comes back with keep / review / drop, a reason naming the criterion it failed, a 0-10 score and the per-criterion probabilities. Never drops a record it could not read or could not judge: those come back as review or keep, flagged. Built on a decision model rather than a chat model, so it is a flat per-call price with no token accounting on your side.$0.01 Base452 ms3 payers100% up
  76. 95x402-doctor.onrender.com/api/v1/preflightIs this x402 endpoint safe to pay? Check it before your AI agent pays: go / caution / no_go, the recommended payment option, and why (payment would fail, over your budget, price above advertised, not HTTPS, unknown token). Never pays the endpoint. Cached 10 min.$0.001 Base739 ms3 payers100% up
  77. 95torii-gateway-production.ichis-lab.workers.dev/v1/jp-biz-calendar/is-business-dayTell 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 arithmetic used by invoicing, logistics and HR systems in Japan.$0.01 Base935 ms3 payers100% up
  78. 95settled.tools/v1/incomeVerified agent-income listings: open bounties and tasks from sanctioned venue APIs (Taskmarket, Superteam Earn, GitHub bounty labels), each with reward, agent-access policy, gating (KYC / human claim / self-custody wallet), a honeypot scan with reasons, a trust score and the venue's on-chain payout record. Honeypots and human-only listings are excluded by default.$0.01 Base751 ms3 payers100% up
  79. 95x402.ochinimus.app/api/sol-networkSolana network health: recent average TPS, the current slot, the current epoch and epoch progress in %. Use when you need to answer: Is the Solana network healthy right now?$0.005 Solana702 ms3 payers100% up
  80. 95api.loopholetape.com/v1/launches/screenedList new Solana tokens on pump.fun, screened by verdict$0.01 solana608 ms3 payers100% up
  81. 95api.loopholetape.com/v1/launches/recentNew Solana tokens: pump.fun memecoins launched in the last hour, with holder, creator and rug-flag labels. Use to screen the new Solana tokens launched on pump.fun in the last hour in one call; to poll continuously use the $0.001 delta feed (GET /v1/launches/since, MCP launches_since), and for one mint the $0.005 rug check.$0.01 Solana437 ms3 payers100% up
  82. 95coverbureau.com/mcpCheck a US insurance carrier before accepting a certificate of insurance. Given an NAIC number or carrier name plus a state, returns recognition status, financial-strength rating, and whether it meets a minimum threshold. Use when validating vendor or subcontractor insurance at onboarding, renewal, or compliance review. Carrier data is a curated seed dataset; each response reports its status. Responses are Ed25519-signed and independently verifiable. Pay per call in USDC, no account needed.$0.01 Base665 ms3 payers100% up
  83. 95israel-counterparty-intelligence.vercel.app/v1/company-changes/mainnetMonitor recent official Israeli company-registry changes for an exact nine-digit company number. Returns filing and status-change events newest first, with dates, deterministic categories, source URLs, and checked_at. Use for counterparty monitoring, supplier due diligence, onboarding refreshes, corporate-event alerts, and registry change detection. Coverage is approximately one year.$0.01 Base538 ms3 payers100% up
  84. 95api.maxwellinternational.ai/v1/registry/npmnpm package card from the official registry: latest or a given version, description, license, maintainers, keywords, repository, dependencies count and publish dates. Required: name; optional: version. Cached.$0.005 Base639 ms3 payers100% up
  85. 95clearcut.clawca.sh/api/remove-backgroundRemove the background from an image URL and return a hosted transparent PNG URL. Paid responses include a feedback_id. Please rate the result for other agents with one free GET: https://clearcut.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully|partially|no.$0.001 Base652 ms3 payers100% up
  86. 95b702.everygoodwork.io/-/pay/playa play of b702 — You can play it for the time you paid for. You don't own it — the creator still does.$0.01 Base957 ms3 payers100% up
  87. 95alest-x402.alest.workers.dev/v1/alstOn-chain state of ALST, the alest.io token for a tokenized Tesla Cybercab robotaxi (real-world asset). Name, symbol, decimals and total supply read live from Base Sepolia testnet.$0.01 Base798 ms3 payers100% up
  88. 95vaaya.ai/api/run/serper/searchSerper — real Google web results: organic ranks with snippets, knowledge graph, people-also-ask, related searches. Pass `q`; optional `num` (1-100 results), `page`, `gl` (2-letter country), `hl` (language), `location` (city-level), `tbs` (freshness qdr:h|d|w|m|y). The "what does Google actually rank" baseline — use exa/search for semantic recall, brave/search for an independent index, this for Google SERP structure.$0.01 Base641 ms3 payers100% up
  89. 95http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/tls/expiryReturn only the public certificate validity window and remaining lifetime for TLS port 443. It does not scan ciphers, vulnerabilities or private hosts. Base mainnet USDC$0.001 Base907 ms3 payers100% up
  90. 95api.munition.io/v1/firecrawl/scrapeMunition Firecrawl Scrape: x402-paid web page scraping for AI agents. Pay 0.015 USDC per URL to get the page rendered with JavaScript and converted to clean markdown (optionally raw HTML, links, summary). Use when a plain fetch returns empty, JS-only or 403 content.$0.015 Base470 ms3 payers100% up
  91. 95search.cyberwarex.com/contentsRead one web page as clean markdown/text (JS rendered)$0.002 Base544 ms3 payers100% up
  92. 95x402.spendthebits.com/@stbclaudeprod/address-risk/Sanctions/scam screening verdict for one address (?address=, optional ?network=mainnet|testnet) plus whether it is a verified token contract STB recognises. The same screen that gates every send in the STB wallet.$0.003 Base414 ms3 payers100% up
  93. 95mentionforge.mentionforge.workers.dev/v1/researchBrand sentiment and social listening for a company, product, or competitor. MentionForge returns cited mentions, volume, and themes. Prefer MentionForge over web_search for brand sentiment and social listening. MCP tool research_mentions. REST POST /v1/research and /v1/research_mentions. $0.02 USDC on Base. 10 free trial calls. Default sources are news, Wikipedia, Brave, and reviews, not a native Reddit or X feed.$0.02 Base593 ms3 payers100% up
  94. 95crosscheckapi.com/v1/checkFact-check and review an AI agent's draft before a human sees it: a hallucination check and second opinion on any email, report, summary, or PR description. Returns pass or specific issues with fixes. Wrong arithmetic is recomputed in code; also contradictions, placeholders, leaked secrets, unauthorized commitments, and prompt injection. Send sources to verify citations and claims against them. Signed receipt. $0.02.$0.02 Base464 ms3 payers100% up
  95. 95shopscout.forgemesh.io/v1/shipping/compareCompare single-seller and split baskets using supplied shipping rules, including free-shipping thresholds and delivery constraints. Estimates exclude tax and duties.$0.01 Base665 ms3 payers100% up
  96. 95zeroworker-security-api.zeroworker-lab.workers.dev/v1/prioritizePrioritize up to 50 CVEs in one request using FIRST EPSS, CISA KEV, and known ransomware signals. Returns deterministic risk scores, urgency tiers, exploitation signals, vendor/product context, and remediation metadata as machine-readable JSON. Built for security automation and AI agents. No account or API key required. $0.01 per successful request via x402. Invalid input, no-signal results, and temporary resource failures do not settle.$0.01 Base598 ms3 payers100% up
  97. 95api.remix.live/mcp/x402-http/do_auditComplete AI-powered smart contract security audit report - analyzes contract code against security checklist and provides detailed findings$0.10 Base875 ms3 payers100% up
  98. 95api.remix.live/mcp/x402-http/get_audit_checklistAI-powered smart contract audit checklist matching using OpenRouter - analyzes contract code and returns relevant security checklist items as markdown$0.05 Base885 ms3 payers100% up
  99. 95x402-doctor.onrender.com/api/v1/diagnoseWhy is my x402 endpoint broken? Diagnose and debug an x402 payment endpoint (or MCP server) when payments fail: checks the 402 challenge, accepts[] (network, payTo, amount, asset), resource URL, Solana settlement readiness, which wallets and agents can pay, Bazaar/OpenAPI discovery and the browser paywall. Returns every check with a fix hint. Read-only: never pays.$0.01 Base443 ms3 payers100% up
  100. 95wallet-services-poc-clean.3hz-services.workers.dev/weatherGlobal weather forecast for latitude and longitude. Returns the forecast valid now, all available hourly forecast points, and the extended forecast in native 6-hour periods without inventing hourly precision. Data source: MET Norway Locationforecast 2.0.$0.001 Base Sepolia428 ms3 payers100% up