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. 19urlgate.xyz/api/v2/networksEnabled payment networks (CAIP-2) and their USDC; mode mainnet|testnet; default first no paywall–0% up
  2. 19screwtape.ai/docs/checksHow verifiable checks work no paywall–0% up
  3. 19tools.nythosx.com/v1/chainsSupported chains (free) no paywall–0% up
  4. 19tron-agent-tools.sharkweather1.workers.dev/pricingPublic price list. No payment. no paywall–0% up
  5. 19tron-agent-tools.sharkweather1.workers.dev/.well-known/x402x402scan compatibility fan-out. resources is a list of absolute URLs. no paywall–0% up
  6. 19app.keeperhub.com/api/healthService health no paywall–0% up
  7. 19x402-recommend.agentpageread.workers.dev/openapi.jsonThis document no paywall–0% up
  8. 19x402-recommend.agentpageread.workers.dev/llms.txtPlain-text description for LLM agents no paywall–0% up
  9. 19coins.os.zhidun-ai.com/v1/bsc/reconcilePaid receipt gas, ERC-20 net flow and expected-transfer checks$0.02 Baseno paywall–0% up
  10. 19twentyonemillion.art/.well-known/x402x402 discovery manifest no paywall–0% up
  11. 19soroban.phoenixrefurbtools.workers.dev/v1/jp/holidaysJapanese national holidays for a year (free) no paywall–0% up
  12. 19twentyonemillion.art/api/statusLive wall status: counts, lanes, and the claim flow no paywall–0% up
  13. 19humanmirror.fr/v1/fleet/consensus-lockFleet Consensus Lock — Fleet Tribunal$0.05 Baseno paywall–0% up
  14. 19hms-trending.ares-hms.workers.dev/healthFree — service health no paywall–0% up
  15. 19bitcoin-today-archive.lorenhodl.workers.dev/llms.txtMachine-readable store description (free) no paywall–0% up
  16. 19crypto-sentiment-x402.onrender.com/.well-known/security.txtSecurity Txt no paywall–0% up
  17. 19api.agentpaywire.com/v1Pricing, the L402 flow, and links. Free. no paywall–0% up
  18. 19crypto-sentiment-x402.onrender.com/archiveArchive Page no paywall–0% up
  19. 19api.agentpaywire.com/.well-known/l402L402 discovery. Free. no paywall–0% up
  20. 19agents.dyoeway.org/api/v1A2A API discovery (FREE) no paywall–0% up
  21. 19micro-saas-agent.onrender.com/api/brief/teaserFree: partial live brief — regime score, green/red counts, top 3 dots (symbol+band only), simulated 7d hit-rate headline; upsells full brief/dots/agent no paywall–0% up
  22. 19haris-api.vercel.app/.well-known/x402x402 discovery document no paywall–0% up
  23. 19charter.mainnet.toonprotocol.dev/v1/offersThe machines for rent now, with their prices and images no paywall–0% up
  24. 19agentevents.178-105-208-188.sslip.io/api/v1/eventsFree sample of upcoming events no paywall–0% up
  25. 19attention-trends.shopttyass-85f.workers.dev/healthHealth check no paywall–0% up
  26. 19micro-saas-agent.onrender.com/api/govcontracts/statusFree: gov-contract feed source health (sourceStatus, asOf, dodAnnouncementDays, dodAwardsParsed, count; no rows) no paywall–0% up
  27. 19micro-saas-agent.onrender.com/api/receipt/verifyFree: verify a receipt; body {payload, signature, data?} or {receipt, data?}. dataMatches checks response_sha256 against data. no paywall–0% up
  28. 19autotasker-hub.netlify.app/api/x402/summary答案型摘要 (免费) no paywall–0% up
  29. 19nova-agent-output-recovery.onrender.com/favicon.icoFavicon no paywall–0% up
  30. 19stillcurrent.something-agent.workers.dev/health/health no paywall–0% up
  31. 19stillcurrent.something-agent.workers.dev/demo/demo no paywall–0% up
  32. 19quantagentshop.com/v1/sampleSample no paywall–0% up
  33. 19x402-markettwits-news.onrender.com/healthService status (free) no paywall–0% up
  34. 19quantagentshop.com/healthHealth no paywall–0% up
  35. 19setu.xyz23110928.workers.dev/llms.txtMachine-readable overview for LLM agents no paywall–0% up
  36. 19getgofetch.dev/.well-known/x402Legacy x402 discovery manifest no paywall–0% up
  37. 19coord.taifoon.dev/v1/pipe/bench_PIPE_LIVE_BENCH_v1_: the latest benchmark of the coord pipe, run read-only by coord coordpipe/bench/live (keyless public /v1 reads, loopback reads on the pipe's own host, its journal and Prometheus, the in-process micro benches): ingest throughput, ack latency p50/p95/p99, fold time per batch, search latency by query type, proof and twig lookups, stream delivery, memory per 100k leaves, start to ready. Every row names its source; a source that did not answer is status dead with its reason (show no paywall–0% up
  38. 19exchangerebel.com/toll/toxicity/healthCheck the toxicity score service status. no paywall–0% up
  39. 19exchangerebel.com/toll/emissions/factorsEmission factor catalog: metadata only, no values. no paywall–0% up
  40. 19exchangerebel.com/toll/access/crawl/preflightFree pre-check twin: exact tiered price preview before payment. no paywall–0% up
  41. 19exchangerebel.com/toll/search/cited/preflightFree pre-check twin: exact $0.05 price first. no paywall–0% up
  42. 19exchangerebel.com/toll/transcribe/schemaTranscription schema + D4 price rule (free). no paywall–0% up
  43. 19exchangerebel.com/toll/a2a/schemaA2A send schema + error vocabulary (free). no paywall–0% up
  44. 19exchangerebel.com/toll/packs/healthPacks service status + endpoint catalog (free). no paywall–0% up
  45. 19exchangerebel.com/toll/access/schemaAccessibility-scan schema (free). no paywall–0% up
  46. 19exchangerebel.com/toll/commons/journalPlatform journal: labelled real fleet events. no paywall–0% up
  47. 19exchangerebel.com/toll/evm/catalogService catalog: endpoints, prices, semantics. no paywall–0% up
  48. 19exchangerebel.com/toll/secfilings/healthCheck the SEC filing feed service status. no paywall–0% up
  49. 19exchangerebel.com/toll/evm/healthCheck the EVM reads service status. no paywall–0% up
  50. 19exchangerebel.com/toll/carbon/zonesCarbon intensity zone catalog: metadata + factors. no paywall–0% up
  51. 19exchangerebel.com/toll/inference/chat/preflightFree pre-check twin: exact $0.01 price before payment. no paywall–0% up
  52. 19exchangerebel.com/toll/secalerts/schemaSEC alerts schema (free). no paywall–0% up
  53. 19exchangerebel.com/toll/commons/leaderboardsLeaderboards of verified facts only. no paywall–0% up
  54. 19exchangerebel.com/toll/power/schemaPower Flags schema + flag semantics. no paywall–0% up
  55. 19exchangerebel.com/toll/commonsIdeas Commons catalog: endpoints + constitution. no paywall–0% up
  56. 19exchangerebel.com/toll/commons/archiveList the permanent Commons archive. no paywall–0% up
  57. 19exchangerebel.com/toll/commons/aggregatesCommons aggregates: counts naming nobody. no paywall–0% up
  58. 19exchangerebel.com/toll/courts/catalogCourtListener catalog: labels only (free). no paywall–0% up
  59. 19exchangerebel.com/toll/screenshot/preflightFree pre-check twin of the screenshot op. no paywall–0% up
  60. 19api-triangle.com/api/v1Free catalog of counties, datasets, and the USDC price no paywall–0% up
  61. 19credits.agentgate.workers.dev/v1/previewFree: what a pack buys at today's prices no paywall–0% up
  62. 19exchangerebel.com/toll/carbon/healthCheck the carbon intensity service status. no paywall–0% up
  63. 19changefeed.anthonyzilar.workers.dev/v1/sourcesList tracked APIs/SDKs and the package names to query them by (free) no paywall–0% up
  64. 19coord.taifoon.dev/v1/troubleshoot/topWhat the community hits: the refusal codes outside callers met most often on /v1 over the last 7 UTC days, from the access log's refusal counters. Counts only: no address, key or caller (_CLI_TROUBLESHOOT_v1_; the page taifoon.io/cli links each code to its fix). no paywall–0% up
  65. 19badhttp.dev/licenseLicensing, stated separately for the two things people confuse: CC0-1.0 for everything this server emits, MIT for the Worker source no paywall–0% up
  66. 19api.agoranome.com/v1/rows/contentsRow sets: contents (free) no paywall–0% up
  67. 19badhttp.dev/echoEcho method, path, query, headers and body (16 KB cap) as JSON no paywall–0% up
  68. 19badhttp.dev/compress/%7Bflavor%7DA response whose content coding misbehaves in the chosen way; GET /compress lists the flavors. Send Accept-Encoding: gzip to receive the bytes as sent. no paywall–0% up
  69. 19badhttp.dev/books.jsonPublic books: every dollar spent and earned by this service (hosting accrues on a clock and is computed, not listed in costs[]; totals.costs = totals.itemized_costs + totals.hosting_accrued), with the receive address's balance read live from chain and reconciled against the booked numbers, every transaction the books name confirmed against its on-chain receipt, the measured basis for the hosting figure, and a solvency line reading the project payer wallet's balance live against the next bill no paywall–0% up
  70. 19agents.avasis.ai/v1/base/x402-starter-kit/infoStarter kit: price, payTo, contents, sha256 (free) no paywall–0% up
  71. 19agents.avasis.ai/v1/evm/multi-balance/sampleFree live sample of the $0.02 multi-balance rail no paywall–0% up
  72. 19logicnodes.io/status.jsonStatus with per-chain freshness no paywall–0% up
  73. 19api.agoranome.com/v1/facts/proof-value/sampleFree sample no paywall–0% up
  74. 19jurat.dev/catalogMachine-readable catalog of the whole jurat service: notarized URL attestations and provenance records, change detection watchers, agent wakeups and scheduling, sports fixtures and settlement results, and x402 pre-flight and conformance auditing. Free. no paywall–0% up
  75. 19api.lumitrades.io/v1/trust/catalogFree teaser of the ingested x402 catalog no paywall–0% up
  76. 19api.lumitrades.io/v1/trust/methodologyMethodology, report format and right to reply (free) no paywall–0% up
  77. 19semilla1-txcheck.netlify.app/openapi.jsonEste documento no paywall–0% up
  78. 19search.gedx402.com/v1/healthService health no paywall–0% up
  79. 19api.agoranome.com/healthHealth no paywall–0% up
  80. 19api.agoranome.com/machines/weeklyWeekly Page no paywall–0% up
  81. 19api.agoranome.com/.well-known/agent-manifestManifest no paywall–0% up
  82. 19cellionaire.com/api/stateCurrent wall version and PNG URL no paywall–0% up
  83. 19cellionaire.com/api/canvas/%7Bfile%7DFull wall PNG (RGBA; alpha 0 empty, 255 buyer, 254 house) no paywall–0% up
  84. 19api.lumitrades.io/v1/feed/licenseLicence terms (HTML; JSON with Accept: application/json) no paywall–0% up
  85. 19cellionaire.com/api/wallWall overview, versioned PNG URL and encoding no paywall–0% up
  86. 19speedbot.dev/earn.jsonMachine-readable agent earning opportunity, costs, conditions and live payout mode no paywall–0% up
  87. 19speedbot.dev/api/agentsBrowse public agent profiles; optionally filter by an exact normalized capability tag no paywall–0% up
  88. 19speedbot.dev/api/launch/arc-challengeRead the 50-place Arc Beta Exit Challenge, funding, terms and confirmed campaign totals no paywall–0% up
  89. 19api.m2mcent.com/rapier-wasm-physics-mcp/schemaFree Schema Discovery for Deterministic rapier-wasm-physics-mcp Engine no paywall–0% up
  90. 19api.m2mcent.com/raycast-hit-tester-mcp/schemaFree Schema Discovery for Deterministic raycast-hit-tester-mcp Engine no paywall–0% up
  91. 19quickbuild.quynguyenbac.workers.dev/launchcheckLaunchCheck free tier: status, HTTPS/redirects, title/description, OG/Twitter card, robots/sitemap (20/hour per IP). Response includes upgrade.preview (count + priority of issues the paid report already found on this page, links to test) and upgrade.recommended (false when the site blocks the checker) no paywall–0% up
  92. 19api.m2mcent.com/recaptcha-v3-solver-mcp/schemaFree Schema Discovery for Execute recaptcha-v3-solver-mcp no paywall–0% up
  93. 19api.m2mcent.com/recursive-self-improvement-mcp/schemaFree Schema Discovery for Execute recursive-self-improvement-mcp no paywall–0% up
  94. 19api.m2mcent.com/salvage-value-oracle-mcp/previewFree Dry-Run Validation & Quote for Deterministic salvage-value-oracle-mcp Engine no paywall–0% up
  95. 19api.m2mcent.com/sdr-meeting-booker-mcp/schemaFree Schema Discovery for Execute sdr-meeting-booker-mcp no paywall–0% up
  96. 19btc402.genesis402.com/proof.jsonRecent Base settlements with attestation links no paywall–0% up
  97. 19api.m2mcent.com/ros2-dds-qos-mcp/schemaFree Schema Discovery for Deterministic ros2-dds-qos-mcp Engine no paywall–0% up
  98. 19workbrain.allthedills.com/v1/intelligence/briefsCompare current decision packages before purchasing no paywall–0% up
  99. 19ipvolt.com/beta/healthService health no paywall–0% up
  100. 19api.m2mcent.com/rfp-compliance-matrix-mcp/previewFree Dry-Run Validation & Quote for Deterministic rfp-compliance-matrix-mcp Engine no paywall–0% up