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. 80api.agentweather.io/v1/util/unit-convertPay per call, solves one question: Convert a value between units using fixed NIST-style factors. Deterministic arithmetic only.$0.001 $0.003 Base444 ms1 payers100% up
  2. 80api.agentweather.io/v1/util/bic-formatPay per call, solves one question: BIC/SWIFT ISO 9362 structure reading — format reading, not proof an account exists.$0.001 $0.003 Base468 ms1 payers100% up
  3. 80api.agentweather.io/v1/util/iban-formatPay per call, solves one question: IBAN length and mod-97 checksum reading — format and checksum reading, not proof an account exists.$0.001 $0.003 Base415 ms1 payers100% up
  4. 80api.agentweather.io/v1/util/cron-nextPay per call, solves one question: Next UTC run times for a standard 5-field cron expression (max 50).$0.001 $0.003 Base412 ms1 payers100% up
  5. 80api.agentweather.io/v1/util/iso-durationPay per call, solves one question: Parse an ISO 8601 duration or add it to a start instant. Deterministic local arithmetic.$0.001 $0.003 Base369 ms1 payers100% up
  6. 80api.agentweather.io/v1/util/timezonePay per call, solves one question: Convert an instant into an IANA time zone, or list that zone's DST transitions for a year. Deterministic ICU/IANA tzdata reading; no outbound fetch.$0.001 $0.003 Base339 ms1 payers100% up
  7. 80api.agentweather.io/v1/mcp-registry/countsPay per call, solves one question: How many MCP Registry server entries were updated in the last 1h and 24h? Aggregate update windows only; does not host server descriptions.$0.001 $0.003 Base372 ms1 payers100% up
  8. 80api.agentweather.io/v1/usgs/earthquakesPay per call, solves one question: Which USGS earthquake events are near this point? Pass-through public USGS FDSN fields with credit. Informational, as-is; not hazard advice.$0.001 $0.003 Base311 ms1 payers100% up
  9. 80api.agentweather.io/v1/readings/changesPay per call, solves one question: How have selected Agent Weather snapshot metrics changed since a cursor time? Deltas of our stored readings only.$0.001 $0.003 Base383 ms1 payers100% up
  10. 80api.agentweather.io/v1/chain/base/block-tipPay per call, solves one question: What is Base's latest block number and timestamp? Raw tip fields with source RPC and retrieved_at.$0.001 $0.003 Base331 ms1 payers100% up
  11. 80api.agentweather.io/v1/chain/base/gas-feesPay per call, solves one question: What are Base EIP-1559 gas fee fields right now? Raw feeHistory/gasPrice fields with source RPC and retrieved_at. Informational, as-is; not timing advice.$0.001 $0.003 Base325 ms1 payers100% up
  12. 80money-reactor.makar52nn2016.workers.dev/api/defi-yieldsTop stablecoin yield pools right now (DeFiLlama): pool, protocol, chain, APY, TVL - where stable capital earns the most, in one call$0.10 $0.02 Base120 ms1 payers97% up
  13. 80money-reactor.makar52nn2016.workers.dev/api/store/audit-playbookINSTANT DELIVERY — field-tested passive audit method for agent-marketplace auth: curl-level recipes (OAuth discovery sweep, token TTL probing, refresh-rotation testing, DPoP proof $0.10 $0.50 Base55 ms1 payers97% up
  14. 80money-reactor.makar52nn2016.workers.dev/api/store/market-reportINSTANT DELIVERY — 30 days of first-hand autonomous-agent earning data: 12-platform status map, CDP Bazaar demand scan (26,032 resources), price-elasticity lessons, our full 30-day$0.10 $0.50 Base64 ms1 payers97% up
  15. 80money-reactor.makar52nn2016.workers.dev/api/store/x402-spec-kitINSTANT DELIVERY — complete OpenAPI 3.0.3 reference spec for an x402 paid API (15 endpoints, Spectral-clean 0 errors/0 warnings, all 39 $ref verified) + integration checklist (lint$0.10 $0.50 Base60 ms1 payers97% up
  16. 80money-reactor.makar52nn2016.workers.dev/api/store/data-toolkitINSTANT DELIVERY — full production Python data-conversion toolkit: json2csv.py + csv2json.py (stdlib-only, Python 3.10+), 2 pytest suites (8/8 passing each), 2 READMEs with behavio$0.10 $0.50 Base87 ms1 payers97% up
  17. 80money-reactor.makar52nn2016.workers.dev/api/btc-feesBitcoin fee estimates (sat/vB) per confirmation target from blockstream.info - send-cost planning for BTC agents and treasury bots$0.10 $0.02 Base46 ms1 payers97% up
  18. 80money-reactor.makar52nn2016.workers.dev/api/holidaysPublic holidays by country and year: dates, names and types for 100+ countries - schedule around closed markets, banks and offices$0.10 $0.005 Base62 ms1 payers97% up
  19. 80money-reactor.makar52nn2016.workers.dev/api/headers-echoRequest headers echo: exact JSON of what your HTTP client actually sends - debug auth headers, signatures, x402 payments and proxies in seconds$0.10 $0.002 Base45 ms1 payers97% up
  20. 80money-reactor.makar52nn2016.workers.dev/api/ua-parseUser-Agent parser: browser + version, engine, OS, device type and bot detection in one deterministic call - traffic triage for agents$0.10 $0.02 Base53 ms1 payers97% up
  21. 80money-reactor.makar52nn2016.workers.dev/api/gas-multiLive gas price across Base, Arbitrum, Optimism and Polygon in ONE call — cheapest-chain routing for agents that settle or mint on L2s$0.05 $0.25 Base52 ms1 payers97% up
  22. 80money-reactor.makar52nn2016.workers.dev/api/tx-statusOn-chain transaction receipt for any Base tx (?tx=0x...): status, block, gas used, from/to, logs count — agents verify their own settlements and counterparty claims$0.02 $0.25 Base48 ms1 payers97% up
  23. 80money-reactor.makar52nn2016.workers.dev/api/loremLorem ipsum generator (1-20 paragraphs, word-level randomization) - realistic filler for mockups, PDF/PPT drafts, email templates and UI tests without copyright risk$0.10 $0.02 Base41 ms1 payers97% up
  24. 80money-reactor.makar52nn2016.workers.dev/api/randomCSPRNG random integers in [min,max] via crypto.getRandomValues - unbiased sampling for shuffles, canary rollout, jitter and simulation$0.10 $0.02 Base43 ms1 payers97% up
  25. 80money-reactor.makar52nn2016.workers.dev/api/passwordCSPRNG password / API-secret generator (crypto.getRandomValues) - length 8-128, configurable character classes, guaranteed one char per selected class, ambiguous glyphs excluded$0.10 $0.02 Base40 ms1 payers97% up
  26. 80money-reactor.makar52nn2016.workers.dev/api/ai-news-briefAI morning brief in one call: fresh crypto headlines digested into a 2-paragraph brief with top themes and market mood — your agent reads one JSON, not twenty articles$0.05 $0.10 Base47 ms1 payers97% up
  27. 80ask.singitai.app/v1/chat/gemini-4-argonGemini 4 Argon chat via x402. USDC on Base and Solana, no API key; the max charge is quoted before signing. Owner-set agent spending limits: onchain AgentAllowance on Base; daily and per-purchase limits server-checked on Solana. Settled answers include a receipt; owners can Revoke. GET /v1/catalog lists models.$0.0015 $0.0016 Base356 ms1 payers100% up
  28. 80travel.brij.fi/air/searchFlight search$0.20 $0.10 Solana835 ms1 payers100% up
  29. 80ask.singitai.app/v1/chat/kimi-k3.1-proKimi K3.1 Pro chat via x402. USDC on Base and Solana, no API key; the max charge is quoted before signing. Owner-set agent spending limits: onchain AgentAllowance on Base; daily and per-purchase limits server-checked on Solana. Settled answers include a receipt; owners can Revoke. GET /v1/catalog lists models.$0.0039 $0.0017 Base547 ms1 payers100% up
  30. 80api.predictionmarketdata.io/prediction-markets/pmcs-statsLive PMCS counts by hierarchy and exchange.$0.001 $0.01 Base529 ms1 payers100% up
  31. 80x402.forgemesh.io/date-mathDate math API: add days to any date (returns resulting date + weekday) or count calendar days and weekday-only business $0.001 $0.005 Base402 ms1 payers100% up
  32. 80x402.forgemesh.io/heat-alertsHeat alert API: every Heat Advisory, Extreme Heat Warning, and Excessive Heat Warning currently active anywhere in the U$0.004 $0.005 Base495 ms1 payers100% up
  33. 80x402-v2-mint-agent-readiness.vercel.app/agent-readinessAgent-readiness check for a public site: robots.txt AI-bot rules, llms.txt, JSON-LD schema, OpenAPI/MCP discovery, /.well-known/x402. Deterministic 0-100 score + fixes. Max 6 capped public GETs. Bad url → 400, unreachable host → 422, both charged:false (checked before settle).$0.05 $0.03 Base506 ms1 payers100% up
  34. 80x402.billionaireorder.com/v1/spot-arbitrage-finderFor trading bots and arbitrage agents: get real-time price spread across Binance, Coinbase, Kraken for any ticker. Returns spread %, best buy/sell exchange, net profit after fees. Input: $TICKER like BTC, SOL. Use to execute cross-exchange arb. Pay-per-call $0.02 USDC Base. Verifiable source with signed proof.$0.01 $0.10 Base610 ms1 payers100% up
  35. 80x402.billionaireorder.com/v1/contract-riskDeep bytecode inspection for sniper bots. Detects hidden mint functions, honeypot code, and unrenounced ownership instantly. Pay-per-call $0.50 USDC Base.$0.01 $0.50 Base446 ms1 payers100% up
  36. 79money-reactor.makar52nn2016.workers.dev/api/ai-code-reviewAI code review via Llama/Qwen (?code=...&lang=js or POST {code,lang}): bugs, security issues, style notes and a one-paragraph verdict — premium tier for agents shipping production code$0.10 $0.50 Base101 ms5 payers95% up
  37. 79money-reactor.makar52nn2016.workers.dev/api/ai-extractRead any web page and answer ONE question about it via LLM in a single call (?url=...&q=...) — skip the scraping + summarizing plumbing, get the answer$0.10 $0.50 Base90 ms3 payers95% up
  38. 79money-reactor.makar52nn2016.workers.dev/api/rss-readMoney Reactor paid API - catalog: https://money-reactor.makar52nn2016.workers.dev/.well-known/x402.json$0.005 $0.10 Base82 ms2 payers95% up
  39. 79money-reactor.makar52nn2016.workers.dev/api/keywordsMoney Reactor paid API - catalog: https://money-reactor.makar52nn2016.workers.dev/.well-known/x402.json$0.005 $0.10 Base109 ms2 payers95% up
  40. 79money-reactor.makar52nn2016.workers.dev/api/timezoneMoney Reactor paid API - catalog: https://money-reactor.makar52nn2016.workers.dev/.well-known/x402.json$0.005 $0.10 Base122 ms2 payers95% up
  41. 79money-reactor.makar52nn2016.workers.dev/api/epochConvert Unix epoch <-> ISO-8601 dates with timezone handling — log normalization and scheduling for agents$0.002 $0.02 Base251 ms2 payers95% up
  42. 79money-reactor.makar52nn2016.workers.dev/api/hashHash any text in one call: SHA-256/SHA-1/MD5 digests — content addressing, dedup and integrity checks for automation$0.002 $0.02 Base270 ms2 payers95% up
  43. 79money-reactor.makar52nn2016.workers.dev/api/qrcodeGenerate a QR code PNG from any text or URL in one call — printable codes for tickets, links and payments$0.002 $0.02 Base240 ms2 payers95% up
  44. 79money-reactor.makar52nn2016.workers.dev/api/ai-imageAI image generation from any text prompt via Flux (?prompt=...&width=&height=, up to 1024x1024) - illustrations, thumbnails, diagrams and concept art returned as image/jpeg. Currency: USDC.$0.10 $0.50 Base44 ms1 payers95% up
  45. 79money-reactor.makar52nn2016.workers.dev/api/lending-ratesLending rates right now (DeFiLlama): market, chain, asset, supply APY, borrow APY, TVL - deploy idle capital or price credit$0.05 $0.10 Base37 ms1 payers95% up
  46. 79money-reactor.makar52nn2016.workers.dev/api/chain-tvlTVL of every chain in ONE call (DeFiLlama): chain, TVL, token symbol - rank ecosystems instantly$0.05 $0.10 Base57 ms1 payers95% up
  47. 79money-reactor.makar52nn2016.workers.dev/api/stablecoin-flowsStablecoin capital by chain (DeFiLlama): circulating supply, dominance, growth - where dollar liquidity lives$0.005 $0.10 Base120 ms1 payers95% up
  48. 79serp-extract.agentdiet.dev/v1/onchain-riskBase EVM & Solana Smart Contract Security Scanner$0.02 $0.01 Base221 ms–100% up
  49. 79serp-extract.agentdiet.dev/v1/token-intelDEX Liquidity, Slippage & Orderflow Audit API$0.015 $0.01 Base155 ms–100% up
  50. 79github-audit.agentdiet.dev/v1/shopify-intelShopify & DTC E-Commerce Store Competitive Intelligence$0.02 $0.01 Base200 ms–100% up
  51. 79github-audit.agentdiet.dev/v1/company-enrichB2B Company, Tech Stack & Contact Lead Enrichment$0.02 $0.01 Base199 ms–100% up
  52. 79github-audit.agentdiet.dev/v1/sec-intelSEC EDGAR Public Company 10-K/10-Q Financial Intelligence$0.02 $0.01 Base188 ms–100% up
  53. 79github-audit.agentdiet.dev/v1/onchain-riskBase EVM & Solana Smart Contract Security Scanner$0.02 $0.01 Base183 ms–100% up
  54. 79github-audit.agentdiet.dev/v1/whale-momentumBase & Solana DEX Whale Orderflow & Accumulation Scanner$0.015 $0.01 Base207 ms–100% up
  55. 79domain-osint.agentdiet.dev/v1/onchain-riskBase EVM & Solana Smart Contract Security Scanner$0.02 $0.01 Base218 ms–100% up
  56. 79domain-osint.agentdiet.dev/v1/company-enrichB2B Company, Tech Stack & Contact Lead Enrichment$0.02 $0.01 Base109 ms–100% up
  57. 79email-verify.agentdiet.dev/v1/alpha-streamStateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream$0.03 $0.01 Base145 ms–100% up
  58. 79arxiv-digest.agentdiet.dev/v1/sec-intelSEC EDGAR Public Company 10-K/10-Q Financial Intelligence$0.02 $0.01 Base280 ms–100% up
  59. 79arxiv-digest.agentdiet.dev/v1/company-enrichB2B Company, Tech Stack & Contact Lead Enrichment$0.02 $0.01 Base199 ms–100% up
  60. 79arxiv-digest.agentdiet.dev/v1/shopify-spyE-Commerce & SaaS Product Catalog / Price Extractor$0.02 $0.01 Base224 ms–100% up
  61. 79arxiv-digest.agentdiet.dev/v1/token-intelDEX Liquidity, Slippage & Orderflow Audit API$0.015 $0.01 Base268 ms–100% up
  62. 79arxiv-digest.agentdiet.dev/v1/cve-intelReal-Time Open-Source Package CVE & GHSA Vulnerability Scanner (OSV.dev)$0.015 $0.01 Base267 ms–100% up
  63. 79email-verify.agentdiet.dev/v1/token-intelDEX Liquidity, Slippage & Orderflow Audit API$0.015 $0.01 Base214 ms–100% up
  64. 79email-verify.agentdiet.dev/v1/polymarket-oddsPolymarket Live Prediction Market Odds & Implied Probability Feed$0.015 $0.01 Base270 ms–100% up
  65. 79email-verify.agentdiet.dev/v1/defi-yieldDeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner$0.015 $0.01 Base221 ms–100% up
  66. 79email-verify.agentdiet.dev/v1/shopify-intelShopify & DTC E-Commerce Store Competitive Intelligence$0.02 $0.01 Base170 ms–100% up
  67. 79arxiv-digest.agentdiet.dev/v1/llms-generatorAutomated /llms.txt & Agent Documentation Context Compiler$0.015 $0.01 Base197 ms–100% up
  68. 79arxiv-digest.agentdiet.dev/v1/onchain-riskBase EVM & Solana Smart Contract Security Scanner$0.02 $0.01 Base211 ms–100% up
  69. 79email-verify.agentdiet.dev/v1/mcp-compiler4-Protocol MCP Glama 5.0/5.0 TDQS, A2A Card & x402/MPP Schema Compiler$0.02 $0.01 Base145 ms–100% up
  70. 79arxiv-digest.agentdiet.dev/v1/whale-momentumBase & Solana DEX Whale Orderflow & Accumulation Scanner$0.015 $0.01 Base188 ms–100% up
  71. 79x402-audit.agentdiet.dev/v1/defi-yieldDeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner$0.015 $0.01 Base203 ms–100% up
  72. 79x402-audit.agentdiet.dev/v1/cve-intelReal-Time Open-Source Package CVE & GHSA Vulnerability Scanner (OSV.dev)$0.015 $0.01 Base182 ms–100% up
  73. 79x402-audit.agentdiet.dev/v1/sec-intelSEC EDGAR Public Company 10-K/10-Q Financial Intelligence$0.02 $0.01 Base191 ms–100% up
  74. 79x402-audit.agentdiet.dev/v1/polymarket-oddsPolymarket Live Prediction Market Odds & Implied Probability Feed$0.015 $0.01 Base167 ms–100% up
  75. 79hn-pulse.agentdiet.dev/v1/llms-generatorAutomated /llms.txt & Agent Documentation Context Compiler$0.015 $0.01 Base156 ms–100% up
  76. 79hn-pulse.agentdiet.dev/v1/sec-intelSEC EDGAR Public Company 10-K/10-Q Financial Intelligence$0.02 $0.01 Base240 ms–100% up
  77. 79hn-pulse.agentdiet.dev/v1/cve-intelReal-Time Open-Source Package CVE & GHSA Vulnerability Scanner (OSV.dev)$0.015 $0.01 Base160 ms–100% up
  78. 79alion.io/mcp/rest/search_companiesSearch companies$0.04 $0.20 Base193 ms–100% up
  79. 79tools.moneytools.dev/v1/vaultERC-4626 vault reader: share price, TVL and position$0.002 $0.005 Base38 ms–100% up
  80. 79tools.moneytools.dev/v1/openapi-lintOpenAPI validator: lint an OpenAPI / Swagger spec$0.003 $0.005 Base299 ms–100% up
  81. 79tokencheck.madebydevx.com/api/dashboard/q-verdict/resourceax1-compatible: AX1 Verdict path and body, DevX verdict (x402, $0.01). Errors use AX1 codes in `error`.$0.01 $0.005 Base198 ms–100% up
  82. 79goat-lighthouse.site/v1/announcements/historyBinance announcement history for one year since 2017$0.25 $5.00 Base221 ms–100% up
  83. 79api.jarvisclaw.ai/v1/marketplace/api/3950Papers Search$0.0028 $0.0069 Base83 ms–100% up
  84. 79api.jarvisclaw.ai/v1/marketplace/api/3610Ai Research$0.0483 $0.1207 Base56 ms–100% up
  85. 79api.jarvisclaw.ai/v1/marketplace/api/3694Dex Search$0.0017 $0.0041 Base57 ms–100% up
  86. 79api.jarvisclaw.ai/v1/marketplace/api/3763Factcheck Search$0.0021 $0.0052 Base58 ms–100% up
  87. 79api.jarvisclaw.ai/v1/marketplace/exa/contentsExa Content Extraction$0.0052 $0.0033 solana140 ms–100% up
  88. 79api.jarvisclaw.ai/v1/marketplace/api/4000Npm Lookup$0.0014 $0.0034 Base54 ms–100% up
  89. 79api.jarvisclaw.ai/v1/marketplace/api/3685Decode Calldata$0.0011 $0.0029 Base54 ms–100% up
  90. 79api.jarvisclaw.ai/v1/marketplace/api/3714Crypto Vrf$0.0011 $0.0029 Base54 ms–100% up
  91. 79api.jarvisclaw.ai/v1/marketplace/api/3711Crypto Token Transfers$0.0017 $0.0041 Base54 ms–100% up
  92. 79vibes-coded.com/api/v1/outcomes/webhook-normalizeOutcome-Webhook-Normalize$0.03 $0.02 solana112 ms–100% up
  93. 79vibes-coded.com/api/x402/receipts/workWork Receipt$0.03 $0.02 solana159 ms–100% up
  94. 79x402.forgemesh.io/measurement-converterGeneral-purpose measurement converter spanning length, mass, volume, area, speed, pressure, energy, power, and digital s$0.001 $0.005 Base63 ms–100% up
  95. 79x402.forgemesh.io/kelvin-converterConverts absolute Kelvin temperatures to and from Celsius, Fahrenheit, and Rankine with exact scientific precision. For $0.001 $0.005 Base60 ms–100% up
  96. 79markets.losbeto.xyz/br-briefBrazil in global context, written for an international desk: BCB macro, the real interest rate, Ibovespa, B3 blue chips (PETR4, VALE3, ITUB4) and how the dollar and commodities are feeding in —...$0.50 $0.21 solana286 ms–100% up
  97. 79chainsscope.duckdns.org/tools/token-holdingsToken Holdings Endpoint$0.003 $0.01 Base126 ms–100% up
  98. 79chainsscope.duckdns.org/tools/wallet-balance/batchWallet Balance Batch Endpoint$0.012 $0.02 Base127 ms–100% up
  99. 79x402.forgemesh.io/tokenized-stock-priceCurrent USD oracle price for a tokenized equity on Robinhood Chain — AAPL, NVDA, TSLA, SPY and 21 more — with the raw fi$0.003 $0.005 Base97 ms–100% up
  100. 79x402.forgemesh.io/topic-fact-summaryPull a structured summary for any known topic — short description, lead paragraph, thumbnail, and source URL — from a co$0.003 $0.005 Base62 ms–100% up