x402watch

37,707 paid endpoints are listed. 23,020 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 2026-09-30 05:46 UTC · 37,707 probed

23,020 answering 4029,132 down4,532 rejecting1,023 no paywall2,818 price drift
  1. 42apibase.pro/api/v1/tools/irena.share_renewables/callIRENA — Renewable Energy Share of Electricity$0.001 Baserejecting–13% up
  2. 42apibase.pro/api/v1/tools/nrc.annual_data/callNRC — Nuclear Reactor Annual Historical Status$0.003 Baserejecting–13% up
  3. 42apibase.pro/api/v1/tools/tfl.line_status/callTfL — Real-Time London Line Status$0.001 Baserejecting–13% up
  4. 42apibase.pro/api/v1/tools/openmeteoaq.current/callOpen-Meteo — Current Air Quality$0.001 Baserejecting–13% up
  5. 42apibase.pro/api/v1/tools/nsf-awards.search/callSearch NSF Research Awards$0.001 Baserejecting–13% up
  6. 42apibase.pro/api/v1/tools/ebi-metagenomics.study_detail/callGet MGnify Study Detail$0.001 Baserejecting–13% up
  7. 42apibase.pro/api/v1/tools/africa.countries.signals/callAfrica API — Country Economic Signals$0.002 Baserejecting–13% up
  8. 42apibase.pro/api/v1/tools/cdc_chronic.trend/callCDC — Chronic Disease Trend Over Years$0.002 Baserejecting–13% up
  9. 42apibase.pro/api/v1/tools/hf_inference.summarize/callHuggingFace — Text Summarization$0.003 Baserejecting–13% up
  10. 42apibase.pro/api/v1/tools/obis.checklist/callOBIS — Marine Species Checklist$0.002 Baserejecting–13% up
  11. 42apibase.pro/api/v1/tools/echo.air_facilities/callEPA ECHO — Air Program Facilities$0.003 Baserejecting–13% up
  12. 42apibase.pro/api/v1/tools/nasa-cmr.list_providers/callNASA CMR — List Data Providers$0.001 Baserejecting–13% up
  13. 42apibase.pro/api/v1/tools/postcode-japan.lookup/callJapan Postcode Lookup$0.001 Baserejecting–13% up
  14. 42apibase.pro/api/v1/tools/openmeteoaq.pollen/callOpen-Meteo — Pollen Forecast$0.001 Baserejecting–13% up
  15. 42apibase.pro/api/v1/tools/delphi.covid_hosp/callCMU Delphi — COVID-19 Hospitalization State Timeseries$0.001 Baserejecting–13% up
  16. 42apibase.pro/api/v1/tools/cbs.table_info/callCBS Netherlands Table Info$0.001 Baserejecting–13% up
  17. 42apibase.pro/api/v1/tools/delphi.flusurv/callCMU Delphi — FluSurv-NET Hospitalization Rates$0.001 Baserejecting–13% up
  18. 42apibase.pro/api/v1/tools/cpsc.by_manufacturer/callCPSC — Recalls by Manufacturer$0.001 Baserejecting–13% up
  19. 42apibase.pro/api/v1/tools/opensky.aircraft_track/callOpenSky — Flight Track / Trajectory for Aircraft$0.002 Baserejecting–13% up
  20. 42apibase.pro/api/v1/tools/statfin.population/callStatistics Finland — Population of Finland$0.001 Baserejecting–13% up
  21. 42apibase.pro/api/v1/tools/smhi.warnings/callSMHI — Active Weather Warnings for Sweden$0.001 Baserejecting–13% up
  22. 42apibase.pro/api/v1/tools/obis.dataset_search/callOBIS — Marine Dataset Search$0.001 Baserejecting–13% up
  23. 42apibase.pro/api/v1/tools/cbs.table_properties/callCBS Netherlands Table Properties$0.001 Baserejecting–13% up
  24. 42apibase.pro/api/v1/tools/opentdb.category_count/callOpen Trivia DB — Category Question Count$0.001 Baserejecting–13% up
  25. 42apibase.pro/api/v1/tools/delphi.fluview/callCMU Delphi — CDC ILINet Flu Surveillance$0.001 Baserejecting–13% up
  26. 42apibase.pro/api/v1/tools/nrc.current_status/callNRC — US Nuclear Reactor Current Status$0.002 Baserejecting–13% up
  27. 42apibase.pro/api/v1/tools/ine.series_metadata/callINE Series Metadata$0.001 Baserejecting–22% up
  28. 41api.strale.io/x402/v2/address-validateValidate and standardize a postal address. Returns structured components, validity confidence, and suggested corrections. Works for 200+ countries via OpenStreetMap Nominatim.$0.0324 Baserejecting2 payers7% up
  29. 41xhagents.xyz/api/x402-directorySearches Coinbase Bazaar and the x402-list directory at once and returns de-duplicated endpoints with price, network, payTo and description, so an agent can find a service to pay without knowing it in advance.$0.10 Baserejecting1 payers18% up
  30. 41stableflare.dev/api/browser/contentFetch the fully rendered HTML of any URL after JavaScript execution.$0.02 Baserejecting1 payers23% up
  31. 41api.strale.io/x402/eth-address-validateValidate an Ethereum address. Checks 0x-prefixed 40-hex format and EIP-55 mixed-case checksum to catch single-character typos. Returns checksummed (canonical) form. Pure algorithmic — fast and cheap.$0.054 Baserejecting1 payers7% up
  32. 40agents.allium.so/api/v1/explorer/queries/run-asyncAPI request: /api/v1/explorer/queries/run-async$0.01 solanarejecting5 payers17% up
  33. 40xhagents.xyz/api/chatAsk the XH Agents AI Trading Assistant a market question$0.10 Baserejecting1 payers17% up
  34. 40xhagents.xyz/api/token-checkERC-20 metadata, proxy detection and free DEX liquidity data for a token on Base, with the checks that could not be performed stated explicitly.$0.10 Baserejecting1 payers17% up
  35. 40ai.verifik.co/api/credit-intents$1.00 Baserejecting–33% up
  36. 40chainray.online/wallet-profile/%7Baddress%7D$0.02 Baserejecting–17% up
  37. 40chainray.online/agent-card/discover$0.005 Baserejecting–17% up
  38. 40chainray.online/multi-sig/%7Baddress%7D$0.01 Baserejecting–17% up
  39. 40chainray.online/tx-decode/%7BtxHash%7D$0.01 Baserejecting–17% up
  40. 40chainray.online/whale-tracker/%7Baddress%7D$0.02 Baserejecting–17% up
  41. 40chainray.online/agent-card/register$0.05 Baserejecting–17% up
  42. 39api.strale.io/x402/v2/whois-lookupPerform a WHOIS lookup for a domain. Returns registrar, creation date, expiry date, name servers, registrant info, and raw WHOIS data.$0.054 Baserejecting2 payers3% up
  43. 39api.strale.io/x402/v2/croatian-company-dataLook up Croatian company data from the Sudski registar (Ministry of Justice Court Register). Accepts OIB (11 digits) or MBS (court registry number). Returns company name, status, address, legal form, VAT.$0.054 Baserejecting2 payers3% up
  44. 39api.strale.io/x402/jwt-decodeDecode a JWT token without verification. Returns header, payload, claims, expiry status, and time until expiry. Algorithmic.$0.0216 Baserejecting1 payers3% up
  45. 39api.strale.io/x402/job-posting-analyzeAnalyze a job posting. Extracts title, skills, salary range, remote policy, benefits, red flags, culture signals. Accepts URL or text.$0.216 Baserejecting1 payers3% up
  46. 39api.strale.io/x402/email-draftDraft a professional email. Specify context, intent (cold outreach/follow-up/apology/etc), and tone. Returns subject line options, body, and key phrases.$0.054 Baserejecting1 payers3% up
  47. 39api.strale.io/x402/markdown-to-htmlConvert markdown to styled HTML with inline CSS. Supports light, dark, and plain themes. Algorithmic — instant.$0.0216 Baserejecting1 payers3% up
  48. 39api.strale.io/x402/unit-convertConvert between units: length, weight, volume, temperature, area, speed, data storage. Algorithmic — instant.$0.0216 Baserejecting1 payers3% up
  49. 39api.strale.io/x402/invoice-validateValidate invoice data: VAT number format, line item math, tax calculations, EU compliance requirements.$0.0216 Baserejecting1 payers3% up
  50. 39api.strale.io/x402/solutions/lead-email-verifyYour agent found a prospect's email — is it real? Deliverability check, DNS, and domain reputation in one call.$0.216 Baserejecting1 payers3% up
  51. 39api.strale.io/x402/v2/ens-resolveResolve an ENS name to its Ethereum address. Supports all ENS names including .eth, DNS names on ENS, and subdomains. Also returns avatar URL and resolver contract.$0.0216 Baserejecting1 payers3% up
  52. 39api.strale.io/x402/v2/au-company-dataLook up Australian company data from the Australian Business Register (ABR). Accepts an ABN (11 digits). Returns entity name, status, type, GST registration, and address details. Free government API — fast and reliable.$0.054 Baserejecting1 payers3% up
  53. 39api.strale.io/x402/v2/country-trade-dataGet trade data for a country: top exports/imports, trade balance, trading partners. World Bank API + embedded data.$0.216 Baserejecting1 payers3% up
  54. 39api.strale.io/x402/solutions/prospect-profileEverything your sales agent researches before a call: SEC data, tech stack, web presence, and domain credibility — delivered in seconds.$0.5832 Baserejecting1 payers3% up
  55. 39api.strale.io/x402/v2/customs-duty-lookupLook up EU customs duty rates by HS code and origin country. Returns duty rate, preferential rates, anti-dumping status.$0.216 Baserejecting1 payers3% up
  56. 39api.strale.io/x402/v2/context-window-optimizeRank and select document chunks by relevance to fit within a token budget. Returns selected/excluded chunks with scores.$0.0324 Baserejecting1 payers3% up
  57. 39api.strale.io/x402/v2/beneficial-ownership-lookupLook up UK beneficial ownership (UBO / PSC) information for a company. Returns individuals who ultimately own or control the entity, their ownership percentage, and the ownership chain. Uses Companies House Persons of Significant Control. UK-only — non-GB…$0.27 Baserejecting1 payers3% up
  58. 39api.strale.io/x402/v2/error-explainExplain an error message or stack trace in plain English. Identifies root cause, suggests fixes with code examples.$0.054 Baserejecting1 payers3% up
  59. 39agent402.vercel.app/mint10$10.00 Baserejecting–40% up
  60. 37pay.x402monopoly.com/api/x402/agent/0x2aa8Bbefc7b1CBC9a9A27Ac4aa5aD7E7288372A5$0.10 Baserejecting–20% up
  61. 37x402.agentsea.vn/v1/intel/enrich-domainDomain Intelligence$0.01 Baserejecting–22% up
  62. 37apibase.pro/api/v1/tools/cfpb-complaints.trends/callCFPB Consumer Complaint Volume Trends$0.001 Baserejecting–22% up
  63. 37apibase.pro/api/v1/tools/openaire.search/callSearch OpenAIRE Research Products$0.002 Baserejecting–22% up
  64. 35xhagents.xyz/api/wallet-profileBalances, contract status, nonce, recent USDC activity and known-address labels for any Base address.$0.10 Baserejecting1 payers17% up
  65. 35agent-three-woad.vercel.app/description$0.0001 Baserejecting–25% up
  66. 35agent-three-woad.vercel.app/tokenomics$0.0001 Baserejecting–25% up
  67. 35ai.verifik.co/api/co/fasecolda/values-by-code$0.40 Baserejecting–25% up
  68. 32blu-token-x402-platform-j2o81uox9-blus-projects-bb43daa9.vercel.app/$1.00 Baserejecting–20% up
  69. 31gpt55.558686.xyz/v1/tools/answeranswer$0.0029 Baserejecting–11% up
  70. 30ai.verifik.co/api/fbi$0.30 Baserejecting–8% up
  71. 30ai.verifik.co/api/face-recognition/compare$0.03 Baserejecting–8% up
  72. 30ai.verifik.co/api/cl/validate/documents$0.30 Baserejecting–17% up
  73. 30chainray.online/defi-opportunity$0.02 Baserejecting–17% up
  74. 30chainray.online/yield-farming$0.01 Baserejecting–17% up
  75. 30chainray.online/token-approval/%7Baddress%7D$0.01 Baserejecting–17% up
  76. 30chainray.online/chain-compare$0.02 Baserejecting–17% up
  77. 30chainray.online/credit-score/%7Baddress%7D$0.02 Baserejecting–17% up
  78. 30chainray.online/risk-dashboard/%7Baddress%7D$0.02 Baserejecting–17% up
  79. 30chainray.online/bridge-monitor$0.005 Baserejecting–17% up
  80. 30chainray.online/gas-optimization$0.005 Baserejecting–17% up
  81. 30chainray.online/solver-feed$0.005 Baserejecting–17% up
  82. 30chainray.online/stablecoin-monitor$0.01 Baserejecting–17% up
  83. 30chainray.online/context-brief$0.05 Baserejecting–17% up
  84. 25api.tickersfeed.net/stock/:symbolReal-time or 15-min delayed stock quote and share price for any US equity ticker — current price, open/high/low/close (OHLC), previous close, and percent change as JSON. Covers NYSE, NASDAQ, AMEX (8,400+ stocks and ETFs). No API key required. Use for: stock price lookup, equity quote, share price check, portfolio valuation, trading signals. $0.003 USDC delayed / $0.01 real-time (add ?tier=realtime).$0.003 Baserejecting9 payers0% up
  85. 25omniterminal.app/api/x402/v1/market-risk/:symbolOmni Terminal assesses one Hyperliquid market before entering, sizing, or reducing a position using all published mark-anchored liquidation levels, explicit flow direction, margin stress, current funding/carry, and enriched AI news.$0.01 Base Sepoliarejecting6 payers0% up
  86. 25omniterminal.app/api/x402/v1/news/:symbolOmni Terminal delivers fresh, deduplicated crypto AI news and market-moving events for an allowlisted symbol, with catalyst summaries, sentiment, impact, confidence, affected tickers, market context, and freshness for trading agents.$0.001 Base Sepoliarejecting6 payers0% up
  87. 25api.tickersfeed.net/crypto/:symbolLive cryptocurrency price, market capitalization, 24h trading volume, and percent change (1h/24h/7d) for any major coin or token (1,000+ supported) as JSON. No API key or exchange account required. Use for: crypto price lookup, Bitcoin price, Ethereum price, token valuation, crypto portfolio tracking. $0.002 USDC per call.$0.002 Baserejecting6 payers0% up
  88. 25api.tickersfeed.net/stock/:symbol/newsLatest financial news headlines for a US stock from the past 7 days — up to 10 articles with headline, summary, source, URL, and publish timestamp as JSON. Use for: stock news feed, market sentiment, news-driven trading, event monitoring, why is a stock moving today. $0.005 USDC per call.$0.005 Baserejecting6 payers0% up
  89. 25dripstack.com/api/v1/publications/:publicationSlug/:postSlugPaid JSON for one Substack-backed newsletter, blog, or podcast post: synthesized summary (`synthesizedSummary`), metadata, and identifiers for financial analysis. Path params are `publicationSlug` and `postSlug`. Returns 503 until summary exists. USDC `exact` x402 on Base or Solana; USD amount is per-post when set on the post, otherwise the server default.$6.00 Baserejecting4 payers0% up
  90. 25omniterminal.app/api/x402/v1/market-carry/:symbolOmni Terminal compares current Hyperliquid 1h funding with mechanical 8h, 1d and APR projections, open interest, volume, premium, and mark-oracle basis for one perpetual market.$0.003 Base Sepoliarejecting4 payers0% up
  91. 25omniterminal.app/api/x402/v1/traders/:symbolOmni Terminal ranks public Hyperliquid traders by PnL, position size, wallet size, or liquidation proximity for wallet and positioning research.$0.003 Base Sepoliarejecting4 payers0% up
  92. 25omniterminal.app/api/x402/v1/liquidations/:symbolOmni Terminal finds where forced-liquidation pressure is concentrated using all bounded published Hyperliquid levels anchored to live mark price, explicit position-side versus liquidation-flow semantics, margin-stress scenarios, and a selected summary, heatmap, cluster, or flow view.$0.005 Base Sepoliarejecting4 payers0% up
  93. 25api.3route.io/v1/:chainId/quotePrice a swap without building a transaction. Returns expected input, output, and gas without constructing an executable transaction. Quotes are informational and can change with liquidity and chain state.$0.001 Baserejecting4 payers0% up
  94. 25api.3route.io/v1/pro/:chainId/quotePrice a swap without building a transaction. Returns expected input, output, and gas for one amount without constructing an executable transaction. Quotes are informational and can change with liquidity and chain state. Supports exact-output amounts and historical state for approximately 35 days; the first request for a block may take 1-7 seconds. To price several amounts or pairs against one block, use the batch quote operation.$0.001 Baserejecting4 payers0% up
  95. 25api.ukintel.uk/v1/company/:number/fcaIs this UK company regulated by the Financial Conduct Authority? Returns register status, a permissions summary and any warnings - sold separately from the full verdict because fintech-vetting agents often want only this.$0.02 Baserejecting3 payers0% up
  96. 25omniterminal.app/api/x402/v1/screenshots/trader-profile/:addressOmni Terminal renders a bounded public Hyperliquid trader-profile PNG with configurable symbol, range, chart tab, and capture depth for visual-capable trading agents.$0.01 Base Sepoliarejecting3 payers0% up
  97. 25omniterminal.app/api/x402/v1/screenshots/liquidation-bucket/:symbolOmni Terminal renders a bounded PNG for one published Hyperliquid liquidation bucket at an explicit price and side for visual trading agents.$0.01 Base Sepoliarejecting3 payers0% up
  98. 25omniterminal.app/api/x402/v1/screenshots/liquidation-levels/:symbolOmni Terminal renders a bounded price-chart PNG with published Hyperliquid liquidation levels so visual-capable trading agents can inspect level placement and price structure.$0.01 Base Sepoliarejecting3 payers0% up
  99. 25omniterminal.app/api/x402/v1/market-snapshot/:symbolOmni Terminal provides Hyperliquid price structure with bounded OHLCV candles, current funding/carry, and an optional mark-anchored all-level liquidation and margin-stress overlay.$0.005 Base Sepoliarejecting3 payers0% up
  100. 25omniterminal.app/api/x402/v1/trader-profile/:addressOmni Terminal analyzes a public Hyperliquid wallet's reconciled equity, PnL, positions, balances, activity, and data-quality flags for copy-trading or counterparty research.$0.005 Base Sepoliarejecting3 payers0% up