x402watch

24,344 paid endpoints are listed. 23,484 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 22:23 UTC · 24,344 probed

23,484 answering 402331 down405 rejecting124 no paywall2,437 price drift
  1. 95chainverdict.xyz/v1/data/gasBase gas price oracle: current gas cost on Base, base fee and priority fee in gwei, at a stated block height. For agents deciding whether to transact now or wait.$0.002 Base714 ms3 payers100% up
  2. 95paddock.finance/api/paddock/mcp/livenessAgent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_liveness reports whether a seller's domain answered at the nightly probe over the last seven days, with latency and sample counts.$0.001 Base749 ms3 payers100% up
  3. 95twitr.sh/api/tools/radarTrending topics and breaking stories across tech, dev, science, business, culture, politics, and entertainment — aggregated from multiple public sources with regional and time-window filters. Flat sub-cent price per call; the cheap first stop for what is happening right now.$0.0024 Base307 ms3 payers100% up
  4. 95x402.twit.sh/users/followingGet the list of Twitter/X users that a specific user follows. Returns up to 50 following profiles per page with pagination support. Query params: id (string, required) - numeric Twitter user ID; next_token (string, optional) - pagination cursor, e.g. GET /users/following?id=44196397. Returns X v2 API-compatible JSON.$0.01 Base375 ms3 payers100% up
  5. 95api.agentinternetruntime.com/v1/sdk/capabilitiesSDK capabilities query ($0.01/request direct, or $0.003/request via Session Ticket at /v1/billing/tickets)$0.01 Base739 ms3 payers100% up
  6. 95anomaly.forgemesh.io/api/sequence-anomaly/statusReturns model health status and per-chain training stats (sequence count, last retrain time) — check before relying on sequence-anomaly scores for a given chain.$0.01 Base534 ms3 payers100% up
  7. 95keyring-agent.blockchhub.link/api/send-nftPay the send-nft execution fee (ERC-721/1155 transfer)$0.05 Base550 ms3 payers100% up
  8. 95tensegrity-control-mesh.onrender.com/inspectDeterministic structural failure inspection of a caller-declared control mesh. Structural evidence only; never authorizes execution. 0.01 USDC per request.$0.01 Base460 ms3 payers100% up
  9. 95pathmint.edge.report/v1/pingBEFORE YOU PAY an x402 402: ping this resource URL. Returns live or dead (ghost listing, timeout, non-compliant host). One cent. Use when holding Payment-Required, before sending USDC to a payTo. Ghost x402, is this endpoint live, verify before pay. Not full pay-clearance.$0.01 Base873 ms3 payers100% up
  10. 95hivemindos-paid-agent-gateway.hivemindos.workers.dev/api/x402/catalogHivemindOS service router for agents: one paid call returns the full HivemindOS commercial catalog (crypto research, wallet risk, Reddit customer research, media, models, email) with live pricing plus every direct x402 purchase endpoint and exact request examples. Start here to discover what a HivemindOS agent stack can buy.$0.01 Base820 ms3 payers100% up
  11. 95dnsdomain.hergertsynthora.com/serviceFull DNS + WHOIS/RDAP domain report in one call. Resolves A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC over DNS-over-HTTPS, plus structured WHOIS via RDAP (registrar, registration/expiration/updated dates, EPP status, nameservers), and returns a 0-100 domain-hygiene score with letter grade (age, days-to-expiry, nameserver redundancy, MX presence, DNSSEC, SPF/DMARC, registrar lock). Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); then 0.001 USDC per call.$0.001 Base694 ms3 payers100% up
  12. 95darrylbots.com/api/research-report-standardDarrylbots paid research: Standard Stock Screen: Quality, Momentum, and Durable Execution$0.001 Base753 ms3 payers100% up
  13. 95bunnvault.xyz/api/vault/apyBunnVault: Real-time Aave v3 USDC APY feed on Base Mainnet$0.005 Base717 ms3 payers100% up
  14. 95arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev/preflightAgent Reliability Network: ARN x402 PayGuard provides x402 payment security for autonomous AI agents. Check the seller before you pay with payment preflight and payment-challenge validation. Returns ALLOW, CAUTION, or BLOCK.$0.001 Base556 ms3 payers100% up
  15. 95api.thetrustlayer.xyz/agent/base:0x13b1e9b460557417dcf97ce75fce5674423d573fAgent profile lookup. Returns trust score, component breakdown, feedback counts, and metadata for any ERC-8004 agent.$0.001 Base477 ms3 payers100% up
  16. 95agent-contract-proof.mattskowronis.workers.dev/v1/verifyCompare an agent's advertised contract with its live x402 challenge and return deterministic proof.$0.01 Base522 ms3 payers100% up
  17. 95quotient-api-gateway.onrender.com/api/v1/assetsBrowse Quotient's canonical underlying-asset directory without forecast or venue-price data. Use this for stable Asset UUIDs and assetKey values, names, tickers, aliases, exact platform identifiers, and active directly linked market counts. The complete filtered catalog returns in one response; use asset search when the user needs linked prediction-market intelligence.$0.005 Base388 ms3 payers100% up
  18. 95www.x402joker.com/api/buyPay-per-joke vending machine: send USDC, get a fresh Claude-generated joke. Optional "theme" picks the topic.$0.01 Base831 ms3 payers100% up
  19. 95x402-trends-server.onrender.com/api/exchange-rateConvert money between currency codes using current reference exchange-rate data. Use this endpoint for USD, EUR, GBP, JPY, and other supported fiat conversions when an agent needs a rate, converted amount, or currency comparison.$0.01 Base660 ms3 payers100% up
  20. 95agent.connskill.com/mail/v1/mail-inboxReceive-only email inbox on a clean domain for 7 days — for account verifications without phone, captcha or personal address. No sending.$0.50 Base585 ms3 payers100% up
  21. 95api.aventtech.com/convert/colorColor conversion: hex or rgb() input to hex, RGB, HSL, approximate relative luminance and best text contrast (black/white).$0.01 Base453 ms3 payers100% up
  22. 95api.x402agentic.ai/spend-guardPer-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.$0.01 Base800 ms3 payers100% up
  23. 95x402.shortforge.dev/x402/probeGiven any public HTTP(S) URL, returns a measured liveness verdict - LIVE, PAUSED, GATED, CHALLENGED, DEGRADED, DEAD or UNKNOWN - with every reason carrying the source it was read from. The point is the case a status check misses: a front door answering 200 over a back end that stopped. Also sold at this origin: good ($149.00, POST /x402/good) - The x402 rail, ninety days - framed print, 24 x 36 in; census ($100.00, GET /x402/census) - The x402 rail census, ninety days, whole.$0.01 Base693 ms3 payers100% up
  24. 95vps.phoneagent.xyz/catalogVpsAgent — rent disposable VPS compute via x402, no signup required. Two product lines: ephemeral sandboxes (1h / 6h / 24h, 1 vCPU / 1 GB RAM / 25 GB SSD, $0.50–$5.00) for code execution, CI runs, browser automation; persistent servers (small / medium / large, 30-day or 365-day, $14.99–$449.99) with 4–8 vCPU / 8–24 GB RAM / 100–300 GB SSD, 200–600 Mbit/s unmetered for hosting agents, services, dev environments. Deployable in 9 regions — EU is the default and free; other regions add $3–$18/mo$0.01 Base566 ms3 payers100% up
  25. 95risk-oracle-api.rohan-rajnikanth.workers.dev/v1/risk-checkDeterministic reserve-condition risk assessment for native USDC on Aave V3 Base$0.01 Base527 ms3 payers100% up
  26. 95risk.yo.xyz/api/v1/agent/searchTargeted node lookup by asset address or protocol/asset name — the sole discovery path$0.001 Base376 ms3 payers100% up
  27. 95ot-intel-api.onrender.com/ot/iocIOC enrichment with ICS campaign context. Pass ?value=1.2.3.4&type=ip or type=domain. Queries AlienVault OTX, AbuseIPDB, and DeepSeek CTI for OT campaign association. Returns verdict on whether the IOC is linked to ICS-targeting campaigns.$0.01 Base472 ms3 payers100% up
  28. 95disruption.forgemesh.io/companies/searchReturns matching companies from 8,400+ WARN Act employer records with profile and intelligence endpoints for deeper analysis$0.01 Base725 ms3 payers100% up
  29. 95x402.coinopai.com/api/kronos/forecastKronos by ForgeMesh calibrated crypto price forecast for BTC, ETH, SOL, XRP, and ADA. Returns its forecast horizon, current price, conformal 80% price range, point return, and upside probability for risk-aware autonomous agent planning. Updates hourly; paid in USDC on Base via x402.$0.05 Base348 ms3 payers100% up
  30. 95api.aventtech.com/lookup/dnsLook up DNS records for any hostname: query A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV and PTR records with TTLs over DNS-over-HTTPS. Check mail configuration (MX), SPF/DKIM/DMARC TXT records, nameservers and IP addresses. Fast, reliable DNS resolver and record lookup for domain and infrastructure verification.$0.02 Base758 ms3 payers100% up
  31. 95travel.forgemesh.io/api/fare-pulseFare Pulse — cheapest live fares from a major US hub, cached snapshot.$0.001 Base571 ms3 payers100% up
  32. 95imagegen.coinopai.com/prompt-stylesPrompt Styles — a curated FLUX prompt-engineering cheat sheet: 12 proven style recipes, an aspect-ratio guide, and a tier picker for the paid /generate endpoints. Static JSON, answers in milliseconds. Spend $0.001 here before spending $0.25-$0.75 on a generation.$0.001 Base412 ms3 payers100% up
  33. 95graphadvocate.com/agent/scoreComposite 0-100 reputation score for any Base wallet. POST {wallet, days?=90}. Combines ERC-8004 registration (Agent0 subgraph), USDC settlement velocity (Base RPC scan), and ERC-8004 feedback+validation registry events aggregated across all of the owner's agents. Hard-gates on 8004 registration to filter burn addresses + CEX wallets. Cached 24h. Use for: should I integrate/pay/trust this peer agent.$0.02 Base414 ms3 payers100% up
  34. 95api.bakhour.ca/dns/lookupResolve ONE DNS record type for a domain -- the cheapest, narrowest domain-check endpoint. For all record types at once, use /domain/intelligence. For a bundled DNS+TLS+headers audit, use /web/audit (raw) or /security/posture (scored). For mail-security plus a scored verdict, use /domain/due-diligence.$0.005 Base864 ms3 payers100% up
  35. 95api.predictionmarketdata.io/prediction-marketsSearch, filter, and sort prediction markets across exchanges.$0.001 Base791 ms3 payers100% up
  36. 95agents.daedalusdevelopmentgroup.com/v1/site-auditDDG agent-payable service request$0.01 Base449 ms3 payers100% up
  37. 95api.clinkforge.com/v1/p/kev-status-by-cveCISA Known Exploited Vulnerabilities status for one CVE: whether it is on the KEV catalog, the due date, required action and ransomware-campaign flag.$0.001 Base489 ms3 payers100% up
  38. 95vaaya.ai/api/run/apify/tiktok-profileApify — TikTok posts for profile usernames.$0.01 Base389 ms3 payers100% up
  39. 95stabletravel.dev/api/flightaware/airportsList all airports with optional pagination$0.01 Base599 ms3 payers100% up
  40. 95agents.daedalusdevelopmentgroup.com/v1/email-sendDDG agent-payable service request$0.01 Base432 ms3 payers100% up
  41. 95api.glianalabs.com/x402/seedance-2.5GlianaAI - pay-per-call AI: LLM chat (OpenAI-compatible), image, video, music, speech - 100+ models, no signup, USDC. This resource: seedance-2.5 (Text-to-Video). https://ai.glianalabs.com$1.68 Base654 ms3 payers100% up
  42. 95api.interzoid.com/getorgmatchscoreCompare two organization/company names and receive a match score from 0-100 indicating how similar they are. Useful for determining if two company names refer to the same entity.$0.01 Base335 ms3 payers100% up
  43. 95asistent-crypto.vercel.app/api/x402/data/btc-networkBitcoin network health: hashrate, difficulty, transaction count, estimated volume, miner revenue and the largest recent mempool transactions. A congested mempool carrying large transfers can front-run an exchange flow you will only see in price an hour later.$0.01 Base309 ms3 payers100% up
  44. 95clink-lithium-vault.fly.dev/translate/textTranslate text for AI agents - POST any text up to 2,000 chars with a target language, get clean JSON back: the detected source language + the full translation, never prose. Any language pair - Spanish, French, German, Japanese, Chinese, Korean, Arabic, Hindi, Portuguese, English - source auto-detected when omitted. Translation API, language translation, localize, i18n. No API key, no account. POST {text, target_lang, source_lang?}. Free sample: /translate/example.$0.01 Base444 ms3 payers100% up
  45. 95asistent-crypto.vercel.app/api/x402/data/newsRecent crypto headlines for narrative context and catalysts — the qualitative layer that explains why funding moved when no macro print did. Returns headlines with attribution for summarisation, not article text.$0.01 Base427 ms3 payers100% up
  46. 95asistent-crypto.vercel.app/api/x402/data/funding-oiPerpetual funding rate and open interest for up to 10 coins in a single call, across Binance, Bybit, OKX and Hyperliquid. Answers 'where is the leverage right now?' for a whole watchlist at once. Thin venues are excluded: averaging every venue that publishes a rate overstates BTC funding by ~30x, because a near-empty book printing 9% per 8h counts the same as a deep one. Funding comes per 8h and annualized, so 0.0067% reads as 7.3% a year.$0.01 Base445 ms3 payers100% up
  47. 95api.x-402.online/v1/llmGet a short completion from a capable model, paid per call, with a bounded output of 2000 tokens. LLM inference pay-per-call, no account, no API key: prompt in, completion out (DeepSeek v4, up to 2000 output tokens). STANDARD tier; /v1/llm/pro is the PRO tier with four times the output budget. Original note on $/c…$0.01 Base422 ms3 payers100% up
  48. 95api.x-402.online/v1/llm/proGet a long completion with a large output budget, same engine as /v1/llm. Long-form LLM inference: same engine as /v1/llm with a four times larger output budget, up to 8000 tokens, for answers the cheap route truncates. Body: {prompt, system?, max_tokens?}$0.02 Base394 ms3 payers100% up
  49. 95x402stock.xyz/api/v1/fear-greed/cryptoThe Crypto Fear & Greed index (0–100) with its rating, alongside the US stock Fear & Greed score for comparison, current BTC and ETH prices with 24h change, and ~90 days of crypto sentiment history. Pass `?days=N` to size the history. The crypto-sentiment companion to /api/v1/fear-greed (stocks). From x402stock, a market & economic data API (x402, USDC).$0.01 Base333 ms3 payers100% up
  50. 95proxy.suverse.io/v1/swap/solana/quoteBidirectional SPL token swap aggregator on Solana mainnet via Jupiter v6 routing across 30+ DEXs (Raydium, Orca, Meteora, Phoenix). USDC to BONK WIF POPCAT JUP RAY ORCA SOL MEW BOME or any SPL, and reverse to USDC. Two-step quote/execute x402 flow. 1% fee. AI agent swap. memecoin DEX.$0.001 Solana830 ms3 payers100% up
  51. 95x402stock.xyz/api/v1/money-supplyUS M2 money stock, monthly, in billions of dollars (seasonally adjusted), with the latest value, prior month, month-over-month and year-over-year change, and recent history. No ticker needed. A liquidity gauge watched for inflation and risk-asset context. Sourced from the St. Louis Fed (FRED). From x402stock, a pay-per-call market & economic data API. Pay per request in USDC via x402, no API key.$0.01 Base328 ms3 payers100% up
  52. 95x402stock.xyz/api/v1/trending/redditWhat stocks and crypto Reddit is talking about most over the last 24h, by mention volume across the busiest Reddit money subreddits (r/wallstreetbets, r/stocks, r/CryptoCurrency, r/Bitcoin, etc.). Each ticker carries mentions, upvotes, and 24h change in rank and mentions; covered subreddits are listed per response. ?filter=stocks|crypto|all (default all), ?page=. From x402stock$0.01 Base349 ms3 payers100% up
  53. 95x402stock.xyz/api/v1/gdpUS real Gross Domestic Product, quarterly, in billions of chained 2017 dollars (seasonally adjusted annual rate), with the latest reading, prior quarter, quarter-over-quarter and year-over-year change, and recent history. No ticker needed. The broad measure of economic output for macro-aware analysis. Sourced from the St. Louis Fed (FRED). From x402stock$0.01 Base424 ms3 payers100% up
  54. 95api.locus.report/api/locus-rental-operations-briefReview one rental property. Returns non-PII RentCast facts, a third-party rent estimate, ZIP market context, Locus/HUD checks, work items, and validated nextCalls. The exact unpaid POST reports current provider readiness before a 402; it does not reserve capacity. Price includes up to three Turnkey signatures. No screening, rent-setting, valuation, or recommendation. Private, no-store. npx @velinussage/locus-agent-skill add.$0.79 Base412 ms3 payers100% up
  55. 95api.locus.report/api/locus-owner-cost-reviewReview one exact property. Returns non-PII RentCast tax history, cited owner programs, work items, and validated nextCalls. The exact unpaid POST reports current provider readiness before a 402; it does not reserve capacity. Price includes one Turnkey signature. No eligibility, savings, appeal, or property recommendation. Private, no-store. npx @velinussage/locus-agent-skill add.$0.25 Base388 ms3 payers100% up
  56. 95api.locus.report/api/locus-three-property-buyer-comparisonCompare exactly three US addresses. Returns non-PII RentCast records, bounded Locus checks, deterministic differences, work items, and validated nextCalls. The exact unpaid POST reports current provider readiness before a 402; it does not reserve capacity. Price includes up to nine Turnkey signatures. No winner, valuation, prediction, or recommendation. Private, no-store. npx @velinussage/locus-agent-skill add.$2.49 Base434 ms3 payers100% up
  57. 95x402.shizu.me/cryptoCurrent spot price for crypto trading pairs. Input: pair — a single pair (BTC-USD) or up to 10 comma-separated pairs (BTC-USD,ETH-USD,SOL-USD) returned in ONE call for the same price — poll a whole portfolio per tick. Returns amount and currency per pair. Real-time from Coinbase.$0.005 Base692 ms3 payers100% up
  58. 95x402.shizu.me/randCryptographically-secure randomness with a receipt. GET ?bytes= returns hex (1-256 bytes); add ?min=&max= for a uniform integer in an inclusive range. Each response carries a request_id and timestamp — unbiased entropy an agent can cite to a counterparty, not a seeded PRNG. Need provable fairness over time? /rand/commit does commit-reveal (commitment now, value later).$0.003 Base688 ms3 payers100% up
  59. 95api.locus.report/api/locus-wikimedia-commons-area-contextGeotagged Wikimedia Commons media with item-level license metadata for area research. Returns source and image URLs with license and attribution leads; no pixels stored. Nearby context, not premises or condition proof; metadata alone is not reuse permission. Charge-free on no eligible media or source failure.$0.01 Base450 ms3 payers100% up
  60. 95api.locus.report/api/locus-rebuild-cost-contextSingle-family rebuild-cost proxy for buyer, owner and lender agents: Census Building Permits Survey value per unit, trended by the BLS construction-input PPI, as a $/sq ft range under a stated size, floored at FEMA $100. Returns the same records as locus_rebuild_cost_context. Use this when your client can only call paid x402 routes. Use locus_rebuild_cost_context instead when you can call Locus free tools (REST tools/call or MCP).$0.01 Base597 ms3 payers100% up
  61. 95api.locus.report/api/locus-flood-premium-contextMedian and quartiles of annual NFIP policy cost and FEMA full-risk premium for policies in force in the ZIP, split by rated zone (SFHA vs minimal hazard), from OpenFEMA NFIP Policies v3 (monthly), for buyer, owner and lender agents. Returns the same records as locus_flood_premium_context. Use this when your client can only call paid x402 routes. Use locus_flood_premium_context instead when you can call Locus free tools (REST tools/call or MCP).$0.01 Base677 ms3 payers100% up
  62. 95mcp.blocksize.info/v1/fx/EURUSDReal-time FX market data from Blocksize Capital.$0.005 Solana707 ms3 payers100% up
  63. 95oracles-production.up.railway.app/v1/edgar-ma/statusFull stored detail for a single SEC EDGAR merger / acquisition agreements filing by accession number (entityId like 'edgar:0000320193-26-000064') — company name, CIK, form type, filing date, and a direct link to the filing index.$0.01 Base314 ms3 payers100% up
  64. 95api.locus.report/api/locus-electricity-contextMapped HIFLD transmission-line proximity and EIA statewide residential price context for a US point before utility diligence. Returns up to 10 lines and state price context, not service, capacity, reliability, tariff, interconnection, timing, or a project cost. Charge-free for an unresolved point or when neither source answers.$0.01 Base550 ms3 payers100% up
  65. 95api.locus.report/api/locus-place-reportOfficial-record property context for agents. Accepts street address or ZIP; street address is best after free lane preflight. Returns a structured public-record artifact. After x402 settlement or seller-escrow, locus_parcel_financials may include the assessor owner-of-record name for the same exact parcel (cited, not a contact); canonical storage stays owner-free. Never valuation, screening, forecasts, or safe/unsafe labels. npx @velinussage/locus-agent-skill add.$0.05 Base718 ms3 payers100% up
  66. 95tempo.halowerk.com/v1/pruef/tempo/ttfb/stylesheetPrüft am Objekt stylesheet den Befund Zeit bis zum ersten Byte.$0.001 Base772 ms3 payers100% up
  67. 95api.tickersfeed.net/econ/snapshotUS macroeconomic snapshot in one call — current inflation (CPI YoY), core PCE, Federal Reserve interest rate (fed funds), 10Y/2Y Treasury yields, yield curve, unemployment, and GDP growth as JSON. Powered by FRED (Federal Reserve Economic Data). Use for: macro dashboard, economic context for trading decisions, rate environment check, market briefings. $0.005 USDC per call.$0.005 Base522 ms3 payers100% up
  68. 95minia2a.uk/x402/x402-eu-briefEU market brief — 4 European equity indices (price + % change), the ECB's daily reference rates for USD, GBP, CHF, JPY and CNY, and the latest ECB press releases, speeches and interviews. No inputs, one call.$0.01 Base370 ms3 payers100% up
  69. 95kari.mayim-mayim.com/api/bazaar/surface_comparison_factsObserved Surface Comparison Facts API$0.01 Base886 ms3 payers100% up
  70. 95cleared.ink/wan/t2v/480pWan Text-to-Video Job (480p)$0.01 Base728 ms3 payers100% up
  71. 95agent-proxy.alchemy.com/v1/x402/4013ed2b4f50e768/abc-test-123/sfdsa$0.02 Base910 ms3 payers100% up
  72. 95api.xynaptic.io/v1/news-worldXynaptic World News Briefing v2 — curated global events (importance >= medium) aggregated from all 7 Xynaptic news feeds, cross-feed deduplicated with reinforced verification. The executive briefing for busy agents. Refreshed every 2 hours.$0.02 Base445 ms3 payers100% up
  73. 95skowron-compliance-gateway.mattskowronis.workers.dev/v1/vatEU VAT validation via official VIES. $0.01 USDC.$0.01 Base725 ms3 payers100% up
  74. 95x402.agentfund.net/x402/onchain_gasMulti-chain Gas Price$0.001 Base469 ms3 payers100% up
  75. 95seo.forgemesh.io/v1/query-correctCorrect likely spelling errors in an SEO query$0.005 Base505 ms3 payers100% up
  76. 95booaip.vercel.app/api/feargreedCurrent crypto Fear & Greed Index with 1-day change (alternative.me).$0.005 Base354 ms3 payers100% up
  77. 95agent-treats-production.up.railway.app/api/fortuneFortune cookie with unique fortune and lucky numbers for AI agents.$0.001 Base385 ms3 payers100% up
  78. 95library.forgemesh.io/book-of-the-dayDeterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and drill-down routes. No license, no API key required.$0.001 Base710 ms3 payers100% up
  79. 95postcode-api-production.up.railway.app/lookup/postcodeLook up a UK postcode: coordinates, country, region, council, ward, parish, parliamentary constituency, and ONS/NHS area codes.$0.001 Base541 ms3 payers100% up
  80. 95agent-memory-api-production-f2c4.up.railway.app/v1/memoriesStore a persistent key-value memory for an AI agent (namespace-isolated, optional TTL and metadata). Returns the stored memory record as JSON.$0.001 Base320 ms3 payers100% up
  81. 95stable-travel-git-migrate-stabletravel-router-140-merit-systems.vercel.app/api/flightaware/airports/KLAX/weather/observationsGet weather observations (METAR) for a specific airport$0.004 Base402 ms3 payers100% up
  82. 95stable-travel-git-migrate-stabletravel-router-140-merit-systems.vercel.app/api/flightaware/airports/KJFK/weather/observationsGet weather observations (METAR) for a specific airport$0.004 Base335 ms3 payers100% up
  83. 95ao-payload-rescue-production.up.railway.app/v1/rescueSafely repair JSON payloads that fail a known schema. Deterministic repairs only. No semantic guessing. Returns exact change manifest and verifiable receipt. Refuses ambiguous repairs.$0.01 Base311 ms3 payers100% up
  84. 95stable-media-git-ben-upgrade-agentcash-rou-02e093-merit-systems.vercel.app/api/countries/listList every supported country with its streaming services$0.01 Base505 ms3 payers100% up
  85. 95machinemint-native-x402-production.up.railway.app/v1/base-preflightCheck an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.$0.01 Base442 ms3 payers100% up
  86. 95ip-geo-api-production.up.railway.app/lookup/myipGeolocate the caller's own IP (derived from request headers); same fields as /lookup/ip.$0.001 Base309 ms3 payers100% up
  87. 95screenshot-api-production-fe7e.up.railway.app/capture/pdfRender an http(s) URL to a PDF (A4/A3/Letter/Legal/Tabloid) with print emulation; returns a JSON envelope with the PDF base64-encoded under pdf_base64, plus final_url, title, format, and size.$0.002 Base347 ms3 payers100% up
  88. 95web-scraper-api-production-bf20.up.railway.app/scrape/metadataExtract page metadata: title, description, keywords, author, published/modified dates, canonical, language, favicon, and OpenGraph/Twitter card tags.$0.002 Base361 ms3 payers100% up
  89. 95twin.unykorn.org/erc20-decimalsDecimals of an ERC20 token — Genesis402 / UnyKorn Operator Network$0.001 Base391 ms3 payers100% up
  90. 95minia2a.uk/x402/x402-dnsminia2a service: x402-dns$0.01 Base403 ms3 payers100% up
  91. 95api.signalfuse.co/v1/signal/ETHFused directional trading signal with confidence score$0.01 Base373 ms3 payers100% up
  92. 95domain.hugen.tokyo/domain/whoisWHOIS registration lookup — registrar, creation/expiry/updated dates, domain age in days, name servers, DNSSEC, registrant country/org, EPP status codes. All TLDs (.com .net .org .io .dev .ai ccTLDs gTLDs). Per-field error resilience for TLD-specific parsing quirks. No WHOIS library setup or TLD-specific parsing needed. Accepts USDC payments on Base and Solana$0.01 Base745 ms3 payers100% up
  93. 95defi.hugen.tokyo/defi/tvlCurrent Total Value Locked (TVL) for any DeFi protocol — real-time aggregate across all deployed chains. Accepts USDC payments on Base and Solana$0.01 Base584 ms3 payers100% up
  94. 95domain.hugen.tokyo/domain/dnsDNS lookup across 3 independent resolvers in parallel — A, AAAA, MX, TXT, NS, CNAME, SOA records. SPF mechanism parsing, DMARC policy extraction, resolver inconsistency detection (DNS hijacking/BGP leak signal). One call replaces 3 separate resolver queries + result comparison. Accepts USDC payments on Base and Solana$0.01 Base757 ms3 payers100% up
  95. 95visual.hugen.tokyo/visual/ocrOCR extraction from scanned PDF documents (English). Uses Tesseract to read text from image-based pages that have no embedded text layer. Returns structured text and metadata. Ideal for invoices, receipts, contracts, and legacy documents. $0.05 per extraction.$0.05 Base800 ms3 payers100% up
  96. 95whale.hugen.tokyo/whale/lookupLook up any Ethereum address — returns entity labels, name tags, and categories from 412K+ labeled addresses. AI agent API for on-chain identity resolution$0.01 Base757 ms3 payers100% up
  97. 95mailcheck.hugen.tokyo/mailcheck/mxMX record lookup for any domain — returns whether mail servers exist and their hostnames sorted by priority. Verify email deliverability before sending. Supports all TLDs including ccTLDs and new gTLDs. No DNS library setup needed. Accepts USDC payments on Base and Solana$0.01 Base604 ms3 payers100% up
  98. 95domain.hugen.tokyo/domain/sslSSL/TLS certificate analysis — issuer, SAN list, serial number, validity period, days until expiry. TLS 1.0/1.1/1.2/1.3 individual probing. Automated A-F security grade. No SSL library setup or certificate parsing needed. Accepts USDC payments on Base and Solana$0.01 Base795 ms3 payers100% up
  99. 95x402.billionaireorder.com/v1/web-extract-cleanFOR AI AGENTS ONLY: Input any URL (pump.fun, Dexscreener, X.com, docs, news). Output structured intent (buy_signal/scam/launch), trust_score 0-1, alpha_score 0-1, urgency, wallet/ticker/contract extraction, suggested_action BUY|IGNORE|ALERT in <800ms. Token-efficient 80 tokens vs Apify. Addictive for sniper bots, memecoin hunters, research swarms. Pay-per-call $0.001 USDC Base eip155:8453. M2M: call before every trade to avoid rugs.$0.01 Base568 ms3 payers100% up
  100. 95archtools.dev/v1/tools/search-webWeb search with structured results - title, URL and snippet - ready for agent consumption. Fresh results in one POST. Pay per call with USDC (x402) or credits - archtools.dev$0.015 Base450 ms3 payers100% up