x402watch

50,402 paid endpoints are listed. 27,744 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 2026-10-10 12:50 UTC · 50,402 probed

27,744 answering 40218,331 down3,404 rejecting923 no paywall1,677 price drift
  1. 80proxy.suverse.io/v1/data/suverse-wb-death-rate$0.07 Base1096 ms–100% up
  2. 80proxy.suverse.io/v1/data/suverse-wb-renewable-energy$0.07 Base1205 ms–100% up
  3. 80www.alderpost.co/api/domain-shield$0.12 Base1075 ms–100% up
  4. 80api.wls-ms.com/surprise$0.008 solana2360 ms–100% up
  5. 80parallel.payweave.services/task$0.01 Base1392 ms–100% up
  6. 80replicate.payweave.services/models/bytedance/seedream-3/predictions$0.06 Base1578 ms–100% up
  7. 80abstract-exchange-rates.payweave.services/historical$0.006 Base1450 ms–100% up
  8. 80cloudflare.payweave.services/vision/detect$0.002 Base1105 ms–100% up
  9. 80abstract-exchange-rates.payweave.services/live$0.006 Base1119 ms–100% up
  10. 80x402.adexto.xyz/v1/x402/buy/zeebo$0.10 Base1766 ms–100% up
  11. 80x402.adexto.xyz/v1/x402/buy/adt$0.10 Base2246 ms–100% up
  12. 80basename-x402.vercel.app/v1/reverse$0.01 Base1545 ms–100% up
  13. 80baseyield-x402.vercel.app/v1/yields$0.01 Base1620 ms–100% up
  14. 80xhagents.xyz/api/arkham-intel/trace$0.10 Base2504 ms–100% up
  15. 80xhagents.xyz/api/arkham-intel/use-cases$0.10 Base2469 ms–100% up
  16. 80taskcraft-openapi-check.dafril-d-tlis.chatgpt.site/api/check$0.01 Base1432 ms–100% up
  17. 80152-53-225-73.sslip.io/logs$0.01 Base1043 ms–100% up
  18. 80buero.halowerk.com/v1/baumarkt/meeting/research-experiment-source-note-register/snapshot-compare$0.01 Base1026 ms–100% up
  19. 80buero.halowerk.com/v1/baumarkt/meeting/sales-objection-source-note-register/snapshot-compare$0.01 Base1008 ms–100% up
  20. 80buero.halowerk.com/v1/baumarkt/meeting/sales-procurement-source-note-register/snapshot-compare$0.01 Base1099 ms–100% up
  21. 79www.stablebrowser.dev/api/sessionsCreate a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.$0.10 Base1964 ms14 payers87% up
  22. 79theartillerist.com/api/v1/x402-trialVerify that an agent wallet can complete an x402 v2 payment using USDC on Base mainnet before purchasing production art data.$0.001 Base1458 ms8 payers87% up
  23. 79chain-analyzer.com/api/v1/x402/pingCheap connectivity-check endpoint. Verifies the full x402 settlement path (signature -> CDP facilitator -> on-chain transferWithAuthorization) for $0.01 so AI agents can validate wallet + network + facilitator wiring before committing to higher-value AML calls.$0.01 Base1979 ms7 payers87% up
  24. 79hyperliquid.use.x402atlas.com/midsCurrent mid price for every Hyperliquid asset (perps + spot) in one call — a fast whole-venue price snapshot.$0.005 Base1073 ms5 payers87% up
  25. 79402.com.tr/api/x402/iban-checkValidate an IBAN offline: country registry length, structure, and the ISO 7064 mod-97 checksum that catches what humans and spreadsheets actually get wrong — a transposed pair, a dropped character, an O typed for a zero. Returns the normalised and print-formatted forms, country, SEPA membership, and the bank identifier where the layout is known. Every rejection names WHICH check failed, so you know whether to fix the row or drop it. Structure only: a valid IBAN is not proof the account exists.$0.002 Base745 ms4 payers73% up
  26. 79flat-rate-llm.kikoribera03.workers.dev/v1/content/factOne curious but true fact, in English or Spanish, filtered by topic: science, computing, history or nature. Takes parameters, returns an id so you can avoid repeats across a session, and accepts a seed for a reproducible answer.$0.005 Base415 ms3 payers73% up
  27. 79x402.agentutility.ai/exchange-ratesExchange rates. Latest or historical FX rates between currencies, sourced from the European Central Bank (Frankfurter API). 30+ currency pairs. Optional amount conversion. No commercial restrictions. Specify a base currency (default USD), an optional quote currency or list, an optional date (YYYY-MM-DD or 'latest'), and an optional amount to also receive a converted value when a single quote is supplied.$0.002 Base66 ms3 payers66% up
  28. 79402.com.tr/api/x402/b20-metadata🆕 A B20 with a METADATA_ROLE holder can call updateName/updateSymbol — change its own identity after launch (an impersonation / bait-and-switch vector ERC-20 has no protocol equivalent for). Reads whether the metadata is mutable (role holder exists) AND whether it has ALREADY been renamed on-chain (NameUpdated/SymbolUpdated history). Trust the address, not the label.$0.04 Base583 ms3 payers73% up
  29. 79api.magentlab.com/api/calc/ropeROPE (bulk)$0.005 $0.007 Base247 ms3 payers90% up
  30. 79api.magentlab.com/api/calc/stanford_sleepinessHoddes 1973 Stanford Sleepiness Scale degree 1-7 as assigned by the caller. Returns the degree, score (same as the degree), max 7, and published wording (feeling active and vital; alert; wide awake through almost in reverie; sleep onset soon). Not the Epworth Sleepiness Scale. Not a sleep-disorder diagnosis; magent does not observe the patient.$0.005 $0.007 Base288 ms3 payers90% up
  31. 79webtools402.176-109-107-191.sslip.io/wallet/balancesNative-coin balance + ERC-20 token balances (raw + human) for any address on Base, Ethereum, Arbitrum, Optimism, Polygon or BNB (default Base). On Base pass token symbols or 0x addresses (or a default common set); on other networks pass explicit 0x token addresses.$0.005 Base886 ms2 payers74% up
  32. 79ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/solveLinearEquationSolves a system of linear equations (Ax = b) using the ml-matrix library's LU decomposition (LuDecomposition), with a near-singularity guard beyond the library's exact-singular check, for systems up to 20x20.$0.01 Base374 ms2 payers73% up
  33. 79ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/urlEncodeURL encoder API. Percent-encodes text for safe use in a URL query string or path segment, handling reserved-character rules LLMs often get wrong by hand.$0.01 Base446 ms2 payers73% up
  34. 79http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/job/compensationNormalize compensation explicitly published by the job source; never infer missing salary. Base mainnet USDC$0.003 Base401 ms2 payers73% up
  35. 79toll402.dev/v1/provenanceHuman or synthetic? Provenance evidence for a URL: archive first-capture date, domain age, authorship markup, curated source tier, AI disclosures and stylometric signals, aggregated into a calibrated 0-100 human-origin score with every piece of evidence. Add deep=true for an LLM stylometric assessment.$0.01 Base438 ms1 payers73% up
  36. 79penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev/v1/probes/column-completenessFor supplied field names, distinguish absent keys, explicit nulls, blank strings and populated values across JSON records.$0.05 Base406 ms1 payers74% up
  37. 79ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/purchaseFireImpactCalculatorPurchase impact on FIRE timeline calculator. Runs the FIRE net-worth simulation twice — with and without a one-time purchase amount deducted at a given year — and reports how many years that purchase delays financial independence, quantifying its true opportunity cost.$0.01 Base436 ms1 payers73% up
  38. 79claw402.ai/api/v1/ai/deepseek/modelsList available DeepSeek V4 models$0.002 Base5566 ms–100% up
  39. 79claw402.ai/api/v1/coinank/indicator/market-cap-rankCoin market cap dominance rankings$0.01 Base5190 ms–100% up
  40. 79claw402.ai/api/v1/coinank/indicator/smcSmart Money Concept indicators (BOS, CHoCH, FVG, Order Blocks, Breaker Blocks, EQH/EQL, Sweeps, PD Range)$0.01 Base5201 ms–100% up
  41. 79claw402.ai/api/v1/coinank/oi/allReal-time open interest list by exchange$0.01 Base5156 ms–100% up
  42. 79claw402.ai/api/v1/nofx/upbit/netflow/low-rankingUpbit net outflow rankings$0.002 Base5133 ms–100% up
  43. 79agent.maddegen.art/hub/api/v1/tools/price_historyPrice history + volatility$0.002 Base6524 ms–100% up
  44. 79agent.maddegen.art/hub/api/v1/tools/fees_revenueProtocol fees + revenue$0.002 Base6490 ms–100% up
  45. 79agent.maddegen.art/hub/api/v1/tools/erc20_infoERC-20 token + balance$0.002 Base6494 ms–100% up
  46. 79agent.maddegen.art/hub/api/v1/tools/funding_ratesPerp funding rates$0.003 Base6494 ms–100% up
  47. 79agent.maddegen.art/hub/api/v1/tools/http_probeHTTP probe + security headers$0.001 Base6607 ms–100% up
  48. 79agent.maddegen.art/hub/api/v1/tools/robots_checkrobots.txt + AI crawler policy$0.001 Base6486 ms–100% up
  49. 79agent.maddegen.art/hub/api/v1/tools/hn_searchHacker News search$0.001 Base6595 ms–100% up
  50. 79protocol.useagentbank.com/api/public/x402/paymentsList payouts funded by the authenticated wallet 530 ms–83% up
  51. 79x402.186-241-26-229.sslip.io/v1/opentableOpenTable Scraper$79.80 $0.25 Base96 ms–100% up
  52. 79x402.186-241-26-229.sslip.io/v1/nanobananaNanoBanana Scraper$0.80 $0.25 Base97 ms–100% up
  53. 79x402.186-241-26-229.sslip.io/v1/bbbBBB Scraper$0.40 $0.25 Base97 ms–100% up
  54. 79x402.186-241-26-229.sslip.io/v1/polandPolandYP Scraper$1.60 $0.25 Base96 ms–100% up
  55. 79x402.186-241-26-229.sslip.io/v1/resyResy Scraper$0.598 $0.25 Base100 ms–100% up
  56. 79api.fetchx402.com/v1/bundles/host-intelHost intelligence$0.015 Base3715 ms–100% up
  57. 7947-85-47-24.sslip.io/v1/openapi-compatOpenAPI 3.x breaking-change analysis demo$0.01 $0.001 Base5 ms–100% up
  58. 7947-85-47-24.sslip.io/v1/openapi-playwrightGenerate Playwright API tests from a built-in OpenAPI contract$0.01 $0.001 Base5 ms–100% up
  59. 7947-85-47-24.sslip.io/v1/openapi-wiremockGenerate WireMock mappings from a built-in OpenAPI contract$0.01 $0.001 Base5 ms–100% up
  60. 7947-85-47-24.sslip.io/v1/openapi-pactGenerate a Pact V3 contract from a built-in OpenAPI contract$0.01 $0.001 Base4 ms–100% up
  61. 79api.fetchx402.com/v1/tools/headersHTTP Headers$0.005 Base3086 ms–100% up
  62. 7947-85-47-24.sslip.io/v1/terraform-plan-riskReview a built-in risky Terraform plan$0.01 $0.001 Base5 ms–100% up
  63. 7947-85-47-24.sslip.io/v1/kubernetes-manifest-riskReview a built-in risky Kubernetes workload and ClusterRole$0.01 $0.001 Base5 ms–100% up
  64. 7947-85-47-24.sslip.io/v1/github-actions-workflow-riskReview a built-in risky GitHub Actions workflow$0.01 $0.001 Base5 ms–100% up
  65. 7947-85-47-24.sslip.io/v1/docker-compose-riskReview a built-in risky Docker Compose control plane$0.01 $0.001 Base4 ms–100% up
  66. 7947-85-47-24.sslip.io/v1/openapi-securityAudit a built-in OpenAPI contract against OWASP API Security risks$0.01 $0.001 Base5 ms–100% up
  67. 79api.scrapeforagents.tech/v1/pinterestPinterest Scraper$0.025 Base5626 ms–100% up
  68. 79grandline-fleet.shares.zrok.io/x402/verifyMulti-chain settlement attestation$0.0041 $0.0071 Base118 ms–100% up
  69. 79grandline-fleet.shares.zrok.io/x402/helloBuy hello — test the x402 purchase flow for one cent$0.0199 $0.0185 Base246 ms–100% up
  70. 79grandline-fleet.shares.zrok.io/x402/app:cronwatchBuy CronWatch — cron monitoring$29.01 $29.01 Base119 ms–100% up
  71. 79verify.code402.dev/v1/chain/balance/%7Baddress%7DNative ETH balance of an address$0.50 $0.0029 Base16 ms–100% up
  72. 79orbitwren.cybermax-tools.workers.dev/x402/api/orbitsOrbit elements for orbital-compute satellites (CelesTrak) (pay per call in USDC via x402, no key)$0.003 Base189 ms–75% up
  73. 79edge-agents.ai/v1/services/eurostat-ons-euro-area-hicpEuro Area HICP Annual Inflation$0.01 Base100 ms–75% up
  74. 79edge-agents.ai/v1/services/natural-gas-open-interest-pressureNatural Gas Open Interest Pressure$0.01 Base87 ms–75% up
  75. 79edge-agents.ai/v1/services/soybeans-positioning-momentumSoybeans Positioning Momentum$0.01 Base95 ms–75% up
  76. 79edge-agents.ai/v1/services/usd-index-leveraged-positioning-momentumU.S. Dollar Index Leveraged Positioning Momentum$0.01 Base85 ms–75% up
  77. 79edge-agents.ai/v1/services/live-cattle-open-interest-pressureLive Cattle Open Interest Pressure$0.01 Base96 ms–75% up
  78. 79edge-agents.ai/v1/services/cad-fx-institutional-leverage-divergenceCanadian Dollar Institutional vs Leverage Divergence$0.01 Base95 ms–75% up
  79. 79edge-agents.ai/v1/services/cad-fx-asset-manager-positioningCanadian Dollar Asset Manager Positioning$0.01 Base85 ms–75% up
  80. 79edge-agents.ai/v1/services/jpy-fx-asset-manager-positioningJapanese Yen Asset Manager Positioning$0.01 Base86 ms–75% up
  81. 79edge-agents.ai/v1/services/mxn-fx-leveraged-fund-positioningMexican Peso Leveraged Fund Positioning$0.01 Base94 ms–75% up
  82. 79edge-agents.ai/v1/services/commodity-positioning-regimeCommodity Positioning Regime$0.10 Base95 ms–75% up
  83. 79edge-agents.ai/v1/services/jpy-fx-leveraged-fund-positioningJapanese Yen Leveraged Fund Positioning$0.01 Base104 ms–75% up
  84. 79edge-agents.ai/v1/services/eur-fx-institutional-leverage-divergenceEuro Institutional vs Leverage Divergence$0.01 Base89 ms–75% up
  85. 79edge-agents.ai/v1/services/aud-fx-leveraged-positioning-momentumAustralian Dollar Leveraged Positioning Momentum$0.01 Base91 ms–75% up
  86. 79edge-agents.ai/v1/services/usd-index-institutional-leverage-divergenceU.S. Dollar Index Institutional vs Leverage Divergence$0.01 Base83 ms–75% up
  87. 79edge-agents.ai/v1/services/ust-ultra-bond-leveraged-positioning-momentumUltra U.S. Treasury Bond Leveraged Positioning Momentum$0.01 Base86 ms–75% up
  88. 79edge-agents.ai/v1/services/djia-asset-manager-positioningDow Jones Industrial Average Asset Manager Positioning$0.01 Base98 ms–75% up
  89. 79edge-agents.ai/v1/services/eur-fx-asset-manager-positioningEuro Asset Manager Positioning$0.01 Base100 ms–75% up
  90. 79edge-agents.ai/v1/services/djia-leveraged-positioning-momentumDow Jones Industrial Average Leveraged Positioning Momentum$0.01 Base92 ms–75% up
  91. 79edge-agents.ai/v1/services/sp500-leveraged-positioning-momentumE-mini S&P 500 Leveraged Positioning Momentum$0.01 Base112 ms–75% up
  92. 79edge-agents.ai/v1/services/sp-technology-leveraged-positioning-momentumS&P Technology Sector Leveraged Positioning Momentum$0.01 Base108 ms–75% up
  93. 79edge-agents.ai/v1/services/stablecoin-net-supply-pulseStablecoin Net Supply Pulse$0.01 Base84 ms–75% up
  94. 79edge-agents.ai/v1/services/macro-cn-reserves-months-importsChina Reserve Buffer$0.01 Base97 ms–75% up
  95. 79edge-agents.ai/v1/services/macro-sg-fdi-inflowsSingapore FDI Net Inflows$0.01 Base94 ms–75% up
  96. 79edge-agents.ai/v1/services/macro-au-reserves-months-importsAustralia Reserve Buffer$0.01 Base89 ms–75% up
  97. 79edge-agents.ai/v1/services/zar-fx-institutional-leverage-divergenceSouth African Rand Institutional vs Leverage Divergence$0.01 Base96 ms–75% up
  98. 79edge-agents.ai/v1/services/usd-index-leveraged-fund-positioningU.S. Dollar Index Leveraged Fund Positioning$0.01 Base83 ms–75% up
  99. 79edge-agents.ai/v1/services/usd-index-asset-manager-positioningU.S. Dollar Index Asset Manager Positioning$0.01 Base89 ms–75% up
  100. 79edge-agents.ai/v1/services/ust-5y-leveraged-fund-positioningU.S. Treasury 5Y Leveraged Fund Positioning$0.01 Base86 ms–75% up