x402watch

52,778 paid endpoints are listed. 41,522 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 2026-11-14 06:38 UTC · 52,778 probed

41,522 answering 4025,071 down5,452 rejecting733 no paywall944 price drift
  1. 19derivatives-pricer-production.up.railway.app/llms.txtllms.txt agent discovery document no paywall–0% up
  2. 19api.m2mcent.com/satori-aligner-mcp/schemaFree Schema Discovery for Execute satori-aligner-mcp no paywall–0% up
  3. 19api.m2mcent.com/seamless-tiling-ai-mcp/schemaFree Schema Discovery for Execute seamless-tiling-ai-mcp no paywall–0% up
  4. 19api.m2mcent.com/seismic-blast-planner-mcp/previewFree Dry-Run Validation & Quote for Deterministic seismic-blast-planner-mcp Engine no paywall–0% up
  5. 1921millionpixels.art/api/land/nextThe next unclaimed plot, its price ($10 in USDC) and whether the sale is open no paywall–0% up
  6. 19ffpipe.dev/healthLiveness (free) no paywall–0% up
  7. 19kino402.com/og.svgthe share card no paywall–0% up
  8. 19gateway.code402.dev/v1/statsPublic platform telemetry: settled calls, gross, unique payers (free) no paywall–0% up
  9. 19gateway.code402.dev/v1/sellersSeller registration guide (free) no paywall–0% up
  10. 19compounder-market-api.vercel.app/api/healthInspect service and payment configuration no paywall–0% up
  11. 19compounder-market-api.vercel.app/api/bounty-scoreInspect Bounty Fit Scorer documentation no paywall–0% up
  12. 19ged-x402-image.jvalamis.workers.dev/v1/image/flux-1-schnellFlux 1 Schnell Image Generation$0.01 solanano paywall–0% up
  13. 19x402.tokenizen.nl/openapi.jsonOpenAPI discovery document no paywall–0% up
  14. 19arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev/llms.txtRead compact AI-agent integration guidance no paywall–0% up
  15. 19arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev/sitemap.xmlRead the public ARN sitemap no paywall–0% up
  16. 19x402scan.com/api/x402/facilitators/statsOverall high-level facilitator stats$0.01 Baseno paywall–0% up
  17. 19ds-regime.sector-regime.workers.dev/previewFree preview — regime colours only no paywall–0% up
  18. 19pre-trade-safety.hergertsynthora.com/.well-known/x402.jsonx402 discovery manifest (free) no paywall–0% up
  19. 19kairo-x402.kairo-ships.workers.dev/healthHealth check no paywall–0% up
  20. 19kairo-x402.kairo-ships.workers.dev/.well-known/x402x402 manifest no paywall–0% up
  21. 19agents.alphaquantlabs.ai/v1/mcpStateless Streamable HTTP MCP: check_address (free) and get_full_report (x402, card, or existing B2B API key) no paywall–0% up
  22. 19mcp-x402.onrender.com/x402/playgroundAPI Market / marketplace free playground index (no payment, no API key). no paywall–0% up
  23. 19tts.forgemesh.io/v1/tts/pro-longGenerate Controlled Voice 501-2000 chars$0.006 Baseno paywall–0% up
  24. 19tts.forgemesh.io/v1/tts/batch-longGenerate Batch Voices 501-2000 total chars$0.005 Baseno paywall–0% up
  25. 19tts.forgemesh.io/v1/tts/customGenerate Persona Voice ≤500 chars$0.005 Baseno paywall–0% up
  26. 19tts.forgemesh.io/v1/tts/base-longGenerate Standard Voice 501-2000 chars$0.003 Baseno paywall–0% up
  27. 19notary.forgemesh.io/Fetch service card and API links no paywall–0% up
  28. 19api.m2mcent.com/model-collapse-preventer-mcp/schemaFree Schema Discovery for Deterministic model-collapse-preventer-mcp Engine no paywall–0% up
  29. 19brmarket.thomenz.me/v1/dealsFree: AliExpress trending / best-seller deals feed no paywall–0% up
  30. 19councilof.ai/api/feeds/provider-diffProvider document diff feed (signed historical batch / bespoke partner feed)$0.01 Baseno paywall–0% up
  31. 19api.bakhour.ca/healthHealth no paywall–0% up
  32. 19hypa1m.xyz/llms.txtLlms Txt no paywall–0% up
  33. 19api.finnputerdex.com/healthHealth check (free) no paywall–0% up
  34. 19api.getaiscan.app/api/agent/indexFree capability catalog with prices and endpoints no paywall–0% up
  35. 19api.m2mcent.com/super-resolution-4k-mcp/schemaFree Schema Discovery for Execute super-resolution-4k-mcp no paywall–0% up
  36. 19api.robotsshop.io/v0/liveLive Probe$0.01 Baseno paywall–0% up
  37. 19api.robotsshop.io/v0/free/spookfiles/searchFree Spookfiles Search no paywall–0% up
  38. 19cmp8ipdlp0001jo04z8ncl943-x402.myproceeds.xyz/openapi.jsonDiscovery document no paywall–0% up
  39. 19api.robotsshop.io/v0/settlementsSettlements no paywall–0% up
  40. 19agentshare.dev/api/v1/dex/overviewDEX overview by 24h volume (DefiLlama) no paywall–0% up
  41. 19agentshare.dev/api/v1/public/bot-traffic/statsPublic Bot Traffic Stats no paywall–0% up
  42. 19api.robotsshop.io/Root no paywall–0% up
  43. 19api.anchor-x402.com/v1/investigate/status/%7Bjob_id%7DInvestigate Status no paywall–0% up
  44. 19api.robotsshop.io/.well-known/x402Well Known X402 no paywall–0% up
  45. 19x402.devvizion.com/v0/sample-review-replyFree review-reply teaser no paywall–0% up
  46. 19api.m2mcent.com/swarm-task-router-mcp/schemaFree Schema Discovery for Contract Net Protocol Task Auctioneer no paywall–0% up
  47. 19x402.tbs-digital.com/healthFree readiness probe no paywall–0% up
  48. 19blockrun.ai/api/v1/crypto/price/BTC-USDCrypto Spot Price no paywall–0% up
  49. 19agentshare.dev/api/v1/public/live-feedLive Global Feed no paywall–0% up
  50. 19x402.devvizion.com/v0/sample-checkin-askFree checkin-ask teaser no paywall–0% up
  51. 19intel.twzrd.xyz/v1/intel/x402-demoRun the sample x402 trust flow no paywall–0% up
  52. 19agentshare.dev/api/v1/public/demand-summaryDemand Summary no paywall–0% up
  53. 19x402.gurify.com/Service info no paywall–0% up
  54. 19feral-tools.vercel.app/api/catalogFree service catalog no paywall–0% up
  55. 19spip3.vercel.app/statusService status no paywall–0% up
  56. 19mem.borisinc.com/healthHealth no paywall–0% up
  57. 19intel.twzrd.xyz/v1/intel/score_wallets_batchScore a batch of Solana wallets no paywall–0% up
  58. 19x402-audit.tatschluizguilherme.workers.dev/openapi.jsonOpenAPI 3.0 specification of this API no paywall–0% up
  59. 19x402-audit.tatschluizguilherme.workers.dev/Landing + machine-readable API description no paywall–0% up
  60. 19agentshare.dev/api/v1/metaDiscover API capabilities (no auth) no paywall–0% up
  61. 19x402-audit.tatschluizguilherme.workers.dev/sample-tokenFree sample token audit no paywall–0% up
  62. 19notary-solana.forgemesh.io/Fetch service card and API links no paywall–0% up
  63. 19api.moltalyzer.xyz/api/moltbook/digests/latestMost recent hourly digest no paywall–0% up
  64. 19api.orcatrace.dev/v1/digest/briefPolymarket digest teaser no paywall–0% up
  65. 19api.moltalyzer.xyz/api/moltbook/digests/indexPoll for new digests — returns current digest ID no paywall–0% up
  66. 19spip34.vercel.app/apiAPI info no paywall–0% up
  67. 19api.orcatrace.dev/v1/track-recordWhale-calibration scorecard no paywall–0% up
  68. 19api.isocast.dev/terms.txtTerms of Service (plain text) no paywall–0% up
  69. 19api.orcatrace.dev/v1/pulsePolymarket top-3 movers brief no paywall–0% up
  70. 19api.moltalyzer.xyz/api/moltbook/digests/briefFree digest brief — title, summary, top topics, sentiment no paywall–0% up
  71. 19spip33.vercel.app/apiAPI info no paywall–0% up
  72. 19api.findmydirectdoctor.com/API description, price and how to pay (HTML for browsers, JSON otherwise) no paywall–0% up
  73. 19three.ws/api/v1/x/coingecko/marketsCoinGecko: Ranked market data (price, market cap, volume, change) per coin. no paywall–0% up
  74. 19api.zerion.io/v1/wallets/simulation/transactionSimulate a transaction$0.01 Baseno paywall–0% up
  75. 19spip35.vercel.app/apiAPI info no paywall–0% up
  76. 19aegis.borisinc.com/marketMarket Page no paywall–0% up
  77. 19api.syraa.fun/prediction-game/healthPrediction game health no paywall–0% up
  78. 19api.syraa.fun/infoGateway info no paywall–0% up
  79. 19api.oassis.dev/openapi.jsonRead the public openapi.json catalog no paywall–0% up
  80. 19api.robinx.io/proof.jsonLive calibration / out-of-sample proof (free) no paywall–0% up
  81. 19spip38.vercel.app/apiAPI info no paywall–0% up
  82. 19api.robinx.io/basketLive forward paper-basket track record (free) no paywall–0% up
  83. 19x402.fablerlabs.com/Service discovery (free) no paywall–0% up
  84. 19api.regressionincoming.fyi/v1/free/rankings/top1Top-ranked player at each position (free) no paywall–0% up
  85. 19spip40.vercel.app/apiAPI info no paywall–0% up
  86. 19hermesplant.com/api/healthHealth check no paywall–0% up
  87. 19api.regressionincoming.fyi/v1/free/metaData metadata + paid endpoint catalog no paywall–0% up
  88. 19x402.fuchss.app/v1/similarFind better-scored alternatives to an x402 endpoint$0.005 Baseno paywall–0% up
  89. 19api.x402ai.dev/.well-known/x402x402 discovery manifest no paywall–0% up
  90. 19api.nativebtc.org/healthService health no paywall–0% up
  91. 19x402.devvizion.com/v0/sample-list-readyFree list-ready GTM teaser no paywall–0% up
  92. 19x402.devvizion.com/v0/sample-reverse-bountyFree reverse bounty scaffold teaser no paywall–0% up
  93. 19x402.devvizion.com/v0/sample-rate-cardFree rate-card teaser no paywall–0% up
  94. 19x402.devvizion.com/v0/sample-win-shareFree win-share bid bot teaser no paywall–0% up
  95. 19x402.devvizion.com/v0/sample-counter-offerFree counter-offer teaser no paywall–0% up
  96. 19deeptrawler.com/healthLiveness check (free, unversioned) no paywall–0% up
  97. 19x402.agentsea.vn/v1/signals/token/%7Bmint%7DGet Token Signals no paywall–0% up
  98. 19api.dripmetrics.ai/openapi.jsonOpenAPI discovery document. no paywall–0% up
  99. 19sec.multyplylabs.com/insightsList Insights no paywall–0% up
  100. 19sec.multyplylabs.com/spotlightSpotlight no paywall–0% up