x402watch

22,001 paid endpoints are listed. 21,144 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 2026-10-02 05:45 UTC · 22,001 probed

21,144 answering 402279 down455 rejecting123 no paywall2,416 price drift
  1. 97phion.systems/v1/paid/trust/purpose-bound-consentBind declared consent to action purpose, scope and expiry$0.003 Base148 ms1 payers100% up
  2. 97phion.systems/v1/paid/trust/interrupted-task-recoveryPlan bounded idempotent resumption from a checkpoint$0.003 Base68 ms1 payers100% up
  3. 97api.particle.pro/v1/companies/:id/podcast/advertising/podcastsList podcasts carrying company advertising. Returns podcasts ranked by exact company-linked ad count, with company-wide sponsor filters, per-podcast sponsor breakdowns, recent preview segments, and cursor pagination.$0.03 Base51 ms1 payers100% up
  4. 97api.particle.pro/v1/companies/:id/podcast/advertising/placementsList company podcast advertising placements. Returns a newest-first, keyset-paginated feed of physical podcast ad placements with a known episode publication time, attributed to a company, with episode and podcast context plus every company$0.03 Base51 ms1 payers100% up
  5. 97api.particle.pro/v1/podcasts/:id/ratingsList ratings for a podcast. Returns user-generated ratings (1-5 stars plus optional review text) captured from third-party platforms.$0.01 Base53 ms1 payers100% up
  6. 97api.particle.pro/v1/podcasts/advertising/sponsors/:id/segmentsList ad segments for a sponsor. Returns the individual ad segments attributed to a sponsor, ordered by episode publication date descending, optionally scoped to a single podcast.$0.03 Base71 ms1 payers100% up
  7. 97api.particle.pro/v1/podcasts/advertising/sponsors/:id/podcastsList podcasts for a sponsor. Returns a paginated list of podcasts where the sponsor advertises, ordered by the number of episodes featuring the sponsor.$0.03 Base61 ms1 payers100% up
  8. 97stablesocial.dev/api/sc/facebook/marketplace/itemScrape Creators · Facebook — Marketplace Item$0.06 Base241 ms1 payers100% up
  9. 97extract.tollkit.dev/summarizeLLM-generated summary of the provided text$0.005 Base234 ms1 payers100% up
  10. 97econdash.org/api/v1/m2m/indicators/NY.GDP.MKTP.CDEconDash economic data API (M2M)$0.02 Base131 ms1 payers100% up
  11. 97datetime.openverbs.com/v1/to-jdnConvert a proleptic-Gregorian calendar date to its Julian Day Number (the integer count of days since JDN 0, 1 January 4713 BC in the proleptic Julian calendar).$0.004 Base268 ms1 payers100% up
  12. 97chain.openverbs.com/v1/abiGet the verified contract ABI and verification metadata for a deployed contract by address, sourced from Sourcify. Returns the contract ABI (to decode or call it), contract name, compiler/language, match type, and proxy resolution (is-proxy plus implementation addresses). Supports Ethereum, Base, Arbitrum, Optimism, Polygon. Unverified contracts return `verified:false`. Live reads with cache fallback.$0.006 Base42 ms1 payers100% up
  13. 97chain.openverbs.com/v1/logsQuery a contract's event logs over a bounded block range via `eth_getLogs`: filter by `address` (required) and optional `topics`, get back raw logs (topics, data, block, tx hash, log index) with ERC-20/721 Transfer logs auto-decoded to `{from, to, value}`. Block span is capped (large windows are clamped); results are capped by `limit`. Reads live on-chain data with automatic endpoint fallback.$0.006 Base38 ms1 payers100% up
  14. 97datetime.openverbs.com/v1/from-jdnConvert a Julian Day Number back to a proleptic-Gregorian date, with the ISO weekday (1=Monday..7=Sunday) and its name.$0.004 Base236 ms1 payers100% up
  15. 97geospatial.openverbs.com/v1/tile-boundsCompute the geographic bounding box (west/south/east/north in degrees) of a slippy-map tile z/x/y, plus its Bing quadkey.$0.002 Base288 ms1 payers100% up
  16. 97phion.systems/v1/paid/trust/verified-news-monitorFind literal query evidence across bounded public news sources with timestamps$0.006 Base39 ms1 payers100% up
  17. 97phion.systems/v1/paid/rwa/transaction-assuranceVerify asset, payment, delivery and transfer restrictions as one transaction$0.02 Base38 ms1 payers100% up
  18. 97phion.systems/v1/paid/rwa/sanctions-screening-evidenceScreen a declared subject against independently retrieved official sanctions sources and return traceable evidence$0.015 Base39 ms1 payers100% up
  19. 97phion.systems/v1/paid/rwa/nav-reserveCompare declared NAV, reserves and collateral with independently retrieved sources$0.015 Base36 ms1 payers100% up
  20. 97phion.systems/v1/paid/rwa/corporate-actionsDetect material state changes in NAV, income, maturity, redemption and freezes$0.012 Base39 ms1 payers100% up
  21. 97phion.systems/v1/paid/rwa/complianceDeterministic eligibility and transfer-policy decision$0.012 Base42 ms1 payers100% up
  22. 97phion.systems/v1/paid/rwa/asset-due-diligenceEvidence-backed issuer, contract, custody and legal-document coverage$0.019 Base43 ms1 payers100% up
  23. 97phion.systems/v1/paid/trust/reputation-update-receiptRecommend an auditable bounded reputation change from diverse verified outcome evidence$0.004 Base42 ms1 payers100% up
  24. 97phion.systems/v1/paid/trust/transaction-recovery-v2Recommend bounded recovery while reconciling ambiguous payments before retry$0.005 Base53 ms1 payers100% up
  25. 97phion.systems/v1/paid/trust/automated-dispute-bundleAssemble verified failure evidence and recommend review without executing refunds$0.005 Base54 ms1 payers100% up
  26. 97phion.systems/v1/paid/trust/proof-of-serviceCommit request, authority, execution, payment and delivery evidence in one auditable proof$0.005 Base52 ms1 payers100% up
  27. 97phion.systems/v1/paid/trust/mcp-transaction-gatewayBind MCP tool-call identity to a transaction without silently granting authority$0.004 Base52 ms1 payers100% up
  28. 97phion.systems/v1/paid/trust/a2a-transaction-bridgeBind A2A task identity to a transaction while preserving explicit authority gaps$0.004 Base46 ms1 payers100% up
  29. 97phion.systems/v1/paid/trust/ap2-mandate-bridgeMap mandate fields for review without claiming AP2 authorization or supported production control$0.004 Base53 ms1 payers100% up
  30. 97phion.systems/v1/paid/trust/delegated-spend-policyFail closed on inactive mandates and per-transaction or remaining-budget violations$0.003 Base51 ms1 payers100% up
  31. 97phion.systems/v1/paid/trust/erc8004-reputation-intelligenceAggregate diverse verified observations with mandatory low-sample abstention$0.004 Base54 ms1 payers100% up
  32. 97phion.systems/v1/paid/trust/erc8004-identity-evidenceBind an ERC-8004 registry identity to supplied, independently marked evidence without claiming ownership$0.004 Base54 ms1 payers100% up
  33. 97phion.systems/v1/paid/trust/x402-v2-routerSelect an exactly compatible x402 v2 requirement without receiving private keys$0.003 Base52 ms1 payers100% up
  34. 97phion.systems/v1/paid/trust/payment-optimizerRank only tested payment routes under explicit cost and latency constraints$0.003 Base56 ms1 payers100% up
  35. 97phion.systems/v1/paid/trust/transaction-risk-scoreEstimate evidence-supported probability and expected loss for decision support$0.004 Base54 ms1 payers100% up
  36. 97phion.systems/v1/paid/trust/provider-quality-predictorEstimate success, quality, latency and cost with sample-aware uncertainty$0.004 Base56 ms1 payers100% up
  37. 97phion.systems/v1/paid/trust/economic-loop-detectorDetect self and reciprocal transaction patterns without treating correlation as fraud$0.004 Base55 ms1 payers100% up
  38. 97phion.systems/v1/paid/trust/trust-anomaly-detectorDetect material drift between comparable trust vectors without asserting misconduct$0.003 Base54 ms1 payers100% up
  39. 97phion.systems/v1/paid/trust/agent-behavior-fingerprintCreate a privacy-minimized behavioral commitment from bounded observations$0.003 Base58 ms1 payers100% up
  40. 97phion.systems/v1/paid/trust/sybil-reputation-guardAssess multiple manipulation signals with uncertainty and mandatory abstention$0.004 Base56 ms1 payers100% up
  41. 97phion.systems/v1/paid/trust/capability-benchmarkCalculate reproducible capability performance from versioned evidence-bound cases$0.004 Base55 ms1 payers100% up
  42. 97phion.systems/v1/paid/trust/capability-verificationCompare claimed capabilities with independently evidenced successful observations$0.003 Base54 ms1 payers100% up
  43. 97phion.systems/v1/paid/trust/service-failover-selectorSelect the highest-priority healthy compatible provider without silent fallback$0.003 Base58 ms1 payers100% up
  44. 97phion.systems/v1/paid/trust/payment-delivery-atomicityDetect paid-without-delivery and delivered-without-payment states$0.004 Base63 ms1 payers100% up
  45. 97phion.systems/v1/paid/trust/agent-rate-limit-negotiatorNegotiate deterministic sustained and burst request limits$0.002 Base64 ms1 payers100% up
  46. 97phion.systems/v1/paid/trust/agent-memory-provenanceBind a memory record to source identity, observation time and content hash$0.003 Base67 ms1 payers100% up
  47. 97phion.systems/v1/paid/trust/tool-result-schema-validatorValidate tool output against a bounded top-level JSON Schema subset$0.002 Base75 ms1 payers100% up
  48. 97phion.systems/v1/paid/trust/task-lease-guardVerify active task lease ownership before execution or mutation$0.002 Base69 ms1 payers100% up
  49. 97phion.systems/v1/paid/trust/agent-session-continuityVerify hash-linked session identity and monotonic sequence continuity$0.003 Base69 ms1 payers100% up
  50. 97phion.systems/v1/paid/trust/delegated-credential-guardEnforce delegated credential scope, requester and expiry without receiving raw credentials$0.003 Base76 ms1 payers100% up
  51. 97phion.systems/v1/paid/trust/quote-freshness-guardReject x402 quotes that cannot remain valid through authorization and retry$0.002 Base82 ms1 payers100% up
  52. 97phion.systems/v1/paid/trust/mcp-a2a-task-bridgeMap MCP and A2A task identities without losing state, authority or expiry$0.004 Base76 ms1 payers100% up
  53. 97phion.systems/v1/paid/trust/oauth-issuer-binding-evidenceBind verified OAuth issuer and audience claims to the intended receiver$0.003 Base76 ms1 payers100% up
  54. 97phion.systems/v1/paid/trust/mcp-catalog-cache-guardBind MCP catalog digest to TTL, scope and revalidation policy$0.002 Base70 ms1 payers100% up
  55. 97phion.systems/v1/paid/trust/capability-negotiation-preflightCompare required and offered agent capabilities before execution$0.002 Base76 ms1 payers100% up
  56. 97phion.systems/v1/paid/trust/agent-approval-relayBind a time-limited human approval decision to purpose and exact payload$0.003 Base65 ms1 payers100% up
  57. 97phion.systems/v1/paid/trust/task-cancel-assuranceVerify cancellation state and unresolved side effects$0.003 Base70 ms1 payers100% up
  58. 97phion.systems/v1/paid/trust/task-checkpoint-evidenceBind task state, sequence and checkpoint hash in signed evidence$0.003 Base74 ms1 payers100% up
  59. 97phion.systems/v1/paid/trust/durable-agent-taskValidate durable, isolated and replay-safe agent task envelopes$0.004 Base85 ms1 payers100% up
  60. 97phion.systems/v1/paid/trust/mcp-2026-compatibility-gatewayValidate MCP protocol, method and stateless-discovery compatibility$0.002 Base82 ms1 payers100% up
  61. 97phion.systems/v1/paid/trust/onchain-evidenceCapture supplied public explorer or RPC evidence with immutable content hashes$0.004 Base78 ms1 payers100% up
  62. 97phion.systems/v1/paid/trust/multi-source-fact-bundleBundle independent source observations while exposing agreement and disagreement$0.005 Base79 ms1 payers100% up
  63. 97phion.systems/v1/paid/trust/market-data-snapshotCapture a timestamped public market-data snapshot with freshness and provenance$0.005 Base82 ms1 payers100% up
  64. 97phion.systems/v1/paid/trust/live-data-freshnessTest whether source observations meet an explicit maximum-age policy$0.002 Base87 ms1 payers100% up
  65. 97phion.systems/v1/paid/trust/document-to-verified-jsonNormalize public text, HTML, JSON or XML documents into source-backed JSON$0.01 Base79 ms1 payers100% up
  66. 97phion.systems/v1/paid/trust/index-feedCanonical PHION catalog snapshot or digest-based delta with exact execution templates and signed evidence$0.005 Base87 ms1 payers100% up
  67. 97phion.systems/v1/paid/trust/verified-web-extractRetrieve bounded public web content with source, timestamp and cryptographic hashes$0.003 Base87 ms1 payers100% up
  68. 97phion.systems/v1/paid/trust/entity-enrichment-evidenceBuild source-bounded entity field coverage without inventing missing facts$0.008 Base84 ms1 payers100% up
  69. 97phion.systems/v1/paid/trust/social-source-evidencePreserve attributable public social-source observations and explicit identity limitations$0.006 Base81 ms1 payers100% up
  70. 97phion.systems/v1/paid/trust/source-backed-searchSearch supplied public sources and return only literal source-backed matches$0.004 Base86 ms1 payers100% up
  71. 97stablesocial.dev/api/sc/youtube/shorts/trendingScrape Creators · YouTube — Trending Shorts$0.06 Base117 ms1 payers100% up
  72. 972s.io/api/medical/icd10Verify and search ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries). Pass code (with or without the dot, e.g. E11.9 or E119) to confirm the code exists and list its more-specific child codes, or q to keyword-search code descriptions (e.g. "type 2 diabetes neuropathy"). Optional billable_only=true restricts results to codes valid for claim submission; limit caps results (1-50, default 10). Returns a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data: CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. Use to confirm diagnosis codes are real and current before placing them in claims, prior authorizations, or clinical documents.$0.0025 Base115 ms1 payers100% up
  73. 97x402-factory.com/v1/verification/tableFull verification table: daily MAE/bias per station, lead, method, version — The audit table behind our free verification summary: every scored forecast/actual pair, aggregated at daily granularity per station × lead × method segment × model version, over a selectable window up to 90 days. Each cell carries our MAE, signed bias, the raw-NWS baseline MAE on the same rows where our forecast can…$0.03 Base48 ms1 payers100% up
  74. 97x402-factory.com/v1/verification/station/:stationOne station's forecast-verification history: daily MAE/bias by lead and method — Single-station audit view of our forecast verification: daily MAE, signed bias, raw-NWS baseline, and sample counts for every lead time and method segment at one ICAO station, over a selectable window up to 90 days. Scored against that station's real NWS observations; model versions reported separately, never mixed.$0.02 Base47 ms1 payers100% up
  75. 97chain.openverbs.com/v1/read-contractCall a read-only (view/pure) function on any deployed contract via eth_call and get the decoded result. Give the contract address and a human-readable signature (e.g. 'balanceOf(address) view returns (uint256)') plus args; include return types to decode outputs, else raw hex is returned. Reads allowances, oracle prices and vault/DAO state. Read-only, no signing. Ethereum, Base, Arbitrum, Optimism, Polygon.$0.006 Base42 ms1 payers100% up
  76. 97api.eucompliance.tools/x402/socialSearch Bluesky and Hacker News for every query; for a single public tag, also search Mastodon's anonymous tag timeline. Mastodon is not applicable to phrase search. A failure from any source promised for that query returns an uncharged error, never a partial paid result. Successful results include author, text, time, engagement and link. Twitter/X and TikTok are deliberately out of scope because their terms forbid scraping. Query: q, limit. $0.002 per successful call, signed receipt included.$0.002 Base146 ms1 payers100% up
  77. 972s.io/api/airport/lookupLook up an airport by 3-letter IATA (e.g. SFO) or 4-letter ICAO (e.g. KSFO) code. Query: code (3-5 chars, alphanumeric). Returns { airport: { id, ident, type, name, latitude, longitude, elevationFt, continent, isoCountry, isoRegion, municipality, scheduledService, icaoCode, iataCode, gpsCode, localCode, wikipediaLink } } or 404 NOT_FOUND.$0.0025 Base113 ms1 payers100% up
  78. 97stablesocial.dev/api/sc/spotify/podcastScrape Creators · Spotify — Podcast$0.06 Base111 ms1 payers100% up
  79. 97stablesocial.dev/api/sc/linkedin/ads/searchScrape Creators · LinkedIn — Search Ads$0.06 Base113 ms1 payers100% up
  80. 97geospatial.openverbs.com/v1/point-in-polygonTest whether a coordinate falls inside a polygon.$0.002 Base36 ms1 payers100% up
  81. 97geospatial.openverbs.com/v1/timezoneResolve the timezone for a latitude/longitude.$0.002 Base35 ms1 payers100% up
  82. 97x402-factory.com/v1/forecast/probabilisticPercentile bands (p10–p90) for temp, precip, or wind — Hourly p10/p25/p50/p75/p90 bands for one variable at a coordinate. Temperature bands come from the model's empirical calibration; precipitation and wind bands are NWS-derived approximations, disclosed in the response's method label. Metric units (°C, mm, kph). Horizons cap at 168h. Use it to reason about uncertainty, not just point values.$0.03 Base47 ms1 payers100% up
  83. 97x402-factory.com/v1/history/:slugProbability time series for a market with key-move detection — Hourly or daily blended probability series (per-venue series included where listed) with volume, plus key_moves: buckets where the blend moved at least 5 points. Useful for charting and for change-point context before paying for realtime reads.$0.05 Base47 ms1 payers100% up
  84. 97x402-factory.com/v1/edgar/filings/searchFull-text search over SEC filings (EDGAR FTS), normalized results — Proxies SEC EDGAR full-text search (efts.sec.gov) with fair-access rate limiting and returns normalized hits: company, form, filing date, matched document, and archive URL. Upstream provides no text excerpt, so snippets describe the matched document.$0.03 Base47 ms1 payers100% up
  85. 97x402-factory.com/v1/edgar/events8-K corporate events classified by item number with extractive summaries — Material corporate events from SEC 8-K filings, deterministically classified by Item number (5.02 → leadership_change, 2.02 → results, 1.01 → material_agreement, …) with a two-sentence extractive summary and the filing URL. Filter by ticker, event type, or date.$0.02 Base292 ms1 payers100% up
  86. 97x402-factory.com/v1/edgar/13f/:cik/diffQuarter-over-quarter 13F position changes for an institutional manager — Parses a fund's 13F-HR information tables and diffs the latest quarter against the prior one: new positions, exits, increases, decreases (with share deltas), and the change in top-10 concentration. CIKs may be zero-padded or not.$0.05 Base288 ms1 payers100% up
  87. 97x402-factory.com/v1/contracts/awardsFederal contract awards from USAspending, normalized and filterable — Recent US federal contract awards (USAspending.gov) as clean records: vendor, awarding agency/sub-agency, value, NAICS, start date, and place of performance. Sorted by value. Filter by vendor, agency, NAICS, minimum value, or date.$0.02 Base279 ms1 payers100% up
  88. 97x402-factory.com/v1/edge/weather-marketsModel-vs-market divergence across every parseable weather prediction market — Compares our weather model's event probability with the market-implied probability for every weather-linked prediction market we can parse, ranked by divergence with direction, model confidence (from ensemble spread), and market liquidity. parse_coverage reports how much of the weather catalog is covered. Signals are…$0.15 Base262 ms1 payers100% up
  89. 97x402-factory.com/v1/econ/dashboardUS macro dashboard: every tracked series' latest print in one call — All tracked US economic series in one response: the latest headline print (with its date and a revised flag) plus each series' next scheduled release date. The one-call state of the US economy for agents that would otherwise fan out fifteen reads.$0.03 Base246 ms1 payers100% up
  90. 97x402-factory.com/v1/recalls/drugLatest drug and pharmaceutical recalls (FDA/USDA/CPSC normalized) — Latest drug and pharmaceutical recalls across FDA, USDA FSIS, and CPSC in one normalized schema, with severity classing and product details. Same shape as /v1/recalls, pre-filtered to the drug category.$0.01 Base197 ms1 payers100% up
  91. 97x402-factory.com/v1/recallsProduct recalls across FDA, USDA, and CPSC in one normalized schema — openFDA enforcement reports (food/drug/device), USDA FSIS recalls, and CPSC consumer-product recalls normalized to one shape with a unified severity class (I highest — FDA/USDA classes verbatim; CPSC derived from hazard language). Newest first.$0.01 Base270 ms1 payers100% up
  92. 97x402-factory.com/v1/forecast/pointHourly point forecast for any coordinate, up to 168 hours — Hourly temperature, feels-like, precipitation probability/amount, wind, gusts, humidity, and cloud cover for an exact lat/lon: NWS-derived series, bias-blended with our calibrated station model where covered. Imperial by default (units=metric available). Requests beyond 168 hours are capped at the model's current horizon. Longer…$0.01 Base47 ms1 payers100% up
  93. 97x402-factory.com/v1/alerts/severeActive NWS alerts for a point or state, plus model-forward hazard risk — Official National Weather Service active alerts (public domain, attributed) for a lat/lon or two-letter state, combined with our model's forward 48h hazard probabilities (extreme heat, heavy rain, damaging wind). Pass lat+lon or state.$0.01 Base46 ms1 payers100% up
  94. 97www.x402scan.com/api/x402/origins/blockrun.ai/resourcesResources for a specific origin/domain$0.01 Base236 ms1 payers100% up
  95. 97www.x402scan.com/api/x402/origins/%7Bid%7D/resourcesResources for a specific origin/domain$0.01 Base245 ms1 payers100% up
  96. 97stableproduct.dev/api/channel3/price-tracking/subscriptionsList active Channel3 price tracking subscriptions.$0.01 Base233 ms1 payers100% up
  97. 97stableproduct.dev/api/channel3/brands/listList Channel3 brands with cursor pagination.$0.01 Base281 ms1 payers100% up
  98. 97agent.apiguru.app/agent/v1/v2/seller-productsProducts listed by a seller$0.003 Base187 ms1 payers100% up
  99. 97mcp.dropenginehq.com/api/verify-claimVerify a factual claim against fresh web evidence.$0.02 Base205 ms1 payers100% up
  100. 97stablesocial.dev/api/sc/facebook/adLibrary/ad/transcriptScrape Creators · Facebook — Ad Transcript$0.06 Base130 ms1 payers100% up