x402watch

22,937 paid endpoints are listed. 21,869 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 12:47 UTC · 22,937 probed

21,869 answering 402548 down397 rejecting123 no paywall2,399 price drift
  1. 95api.webbersites.com/api/qrQR code generator: GET ?data=<text|url> and receive a scannable QR as SVG plus PNG (base64) and a data: URI. Options: size (px, default 512), margin (quiet-zone modules, default 2), ecc (L|M|Q|H, default M), dark/light hex colors. Deterministic, no network, no tracking — encode URLs, wifi, vCards, or payment URIs up to 2,000 chars.$0.01 Base426 ms2 payers100% up
  2. 95x402.donnyautomation.com/v4hooksUniswap v4 hook capability scan on Base mainnet. Decodes all 14 permission bits from the hook address per v4-core Hooks.sol, flags swap custody, fee-taking and EIP-1967 upgradeability, and verifies source by Basescan/Sourcify/Blockscout consensus. Returns custodyClass PASSIVE|FLOW_CONTROL|FEE_TAKING|SWAP_CUSTODY|OPAQUE, flags[], riskFlags[] and verificationState. Requires ?address=0x + 40 hex. Errors: 400 invalid_address, 502 analysis_failed. Capability analysis - it never outputs SAFE.$0.01 Base368 ms2 payers100% up
  3. 95tollbooth-sanctions-screener-testnet.sjwilliams8.workers.dev/screenBefore your agent onboards, pays, or contracts with a counterparty: screen the name against the U.S. Treasury OFAC sanctions lists (SDN + Consolidated non-SDN, synced every 6h) for $0.01. Benchmarked 114/114 sanctioned names found with zero false positives on a 152-case adversarial corpus of misspellings, word-order swaps, and transliterated aliases. Ranked candidates with confidence 0-100, program tags, and match evidence. Assistive screening signal, not a certified compliance determination.$0.01 Base Sepolia705 ms2 payers100% up
  4. 95trade.lonestaroracle.xyz/tradeUS trade-flow + tariff signal by commodity$0.05 Base481 ms2 payers100% up
  5. 95coil.trade/api/board/sectorsSector rotation scores — which sectors are strong right now? One read returns every S&P 500 sector ETF (XLK, XLF, XLV, XLE, XLI and the rest) scored 0-100 with percentile, green/yellow/red light and entry state, plus which sectors each book's regime currently calls green. Spot leadership rotation top-down without scanning 500 single names. Refreshed ~5 min in market hours, timestamped. Research, not advice.$0.01 Base525 ms2 payers100% up
  6. 95ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/leadsFind current official business-registration leads from Chicago and San Francisco open-data APIs. Results include source-dataset and source-record links; this product does not claim private emails or buyer intent.$0.01 Base922 ms2 payers100% up
  7. 95api.sirenic.eu/v1/regulateurs/fr/alertesFrench financial regulator alerts and scam check against the official AMF blacklist: screen a name for unauthorized investment websites, scams and AMF impersonation, and look up PSAN crypto provider registrations and licensed asset management companies (SGP) by name or SIREN. A compliance screening of the regulator blacklists for agents vetting French counterparties in crypto and asset management. Official AMF open data (Licence Ouverte 2.0), refreshed daily.$0.01 Base729 ms2 payers100% up
  8. 95ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/code_auditScan supplied code with transparent deterministic rules for common secret, injection, shell, weak-hash, and Solidity risks. This is not a professional audit.$0.01 Base391 ms2 payers100% up
  9. 95api.relaystation.ai/v1/image/ocr$0.003/call. Extract text from an image — Tesseract, 10 languages, plain text out. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny$0.01 Base352 ms2 payers100% up
  10. 95x402.ottoai.services/earnings-flashAgent-native earnings facts: when a company reports, get the numbers that move the stock — total & segment revenue, EPS and gross margin (GAAP and non-GAAP, always labeled), next-quarter guidance — each with its source line. Figures go live from the wire within minutes of the release; the SEC 8-K exhibit version supersedes them, and every response names its source document. Refuses honestly until the release is out; never advice.$0.05 Base552 ms2 payers100% up
  11. 95quantum-artificer.surewhynot.app/v1/physics/solvePhysics ODE solver (SciPy): coupled ODE systems from parameterized templates (orbital 2-body, oscillator, pendulum, heat transfer, RC/RLC, projectile-with-drag, SIR) or a generic linear system, with energy/conservation checks. Paid in USDC on Base or Solana.$0.005 Base943 ms2 payers100% up
  12. 95quantum-artificer.surewhynot.app/v1/quantum/simulateQuantum circuit simulation (Qiskit Aer): statevector, density-matrix (noise), stabilizer, and MPS methods; shots, expectation values, and seeded determinism. Sync tier up to 24 qubits. Paid in USDC on Base or Solana.$0.01 Base411 ms2 payers100% up
  13. 95api.oblique.markets/api/v1/paid/x402-endpoint-verifyUse when an agent needs x402 endpoint verify. Returns Verify and lint a third-party x402 endpoint: probes the URL (SSRF-guarded), confirms it answers with a well-formed HTTP 402 challenge, and reports protocol-conformance findings — accepts[] completeness, facilitator price floor on Base, PAYMENT-REQUIRED header/body consistency, timeout sanity. $0.02.$0.02 Base833 ms2 payers100% up
  14. 95api.oblique.markets/api/v1/paid/base-tx-statusUse when an agent needs base tx status. Returns Return Base transaction success or revert state, block number, confirmations, gas used, and effective gas price for a transaction hash. $0.003.$0.003 Base827 ms2 payers100% up
  15. 95api.oblique.markets/api/v1/paid/solana-ops-contextUse when a Solana-side agent needs a cheap operational context check at the start of a run or task, as often as it likes. Returns the current UTC time (ISO and unix) plus the latest x402 Bazaar pulse (resource, seller and 30-day call totals, top services, networks) with source evidence and whether this paying wallet has called before. $0.005 per call via MPP on Tempo, x402 on Solana or x402 on Base; no accounts.$0.005 Base471 ms2 payers100% up
  16. 95api.oblique.markets/api/v1/paid/oblique-gatewayUse when an agent needs oblique gateway. Returns Capped observer-backed gateway over five allowlisted proven sellers; pays selected upstream from a small float, adds a transparent 10% margin, and returns payment reference, delivery and gateway receipt. $0.001187.$0.0012 Base785 ms2 payers100% up
  17. 95api.oblique.markets/api/v1/paid/market-intelUse when an agent needs market intel. Returns Composed crypto market intelligence from public protocol, chain, DEX, fee and yield data plus bounded public web context. $0.10.$0.10 Base418 ms2 payers100% up
  18. 95api.oblique.markets/api/v1/paid/trading-signalsUse when an agent needs trading signals. Returns Bounded crypto trading signal from public DEX volume, chain TVL and fee momentum data. $0.005.$0.005 Base396 ms2 payers100% up
  19. 95api.oblique.markets/api/v1/paid/x402-receipt-lookupUse when an agent needs x402 receipt lookup. Returns Fetch a previously issued settlement-verify receipt by verification_id: returns the stored on-chain verification result (payer, payee, amount, status, confirmations at verification time) with its creation timestamp. $0.002.$0.002 Base750 ms2 payers100% up
  20. 95api.oblique.markets/api/v1/paid/sentimentUse when an agent needs a quick sentiment read on a passage, a headline or a topic before acting on it. Returns Sentiment label (positive, negative or neutral) with a confidence and a one-line summary for a text passage or a named topic. $0.05.$0.05 Base753 ms2 payers100% up
  21. 95glim.sh/api/v1/twitter/users/relationshipCheck follow relationship$0.001 Solana838 ms2 payers100% up
  22. 95glim.sh/api/v1/twitter/users/:ref/followersUser followers$0.004 Solana812 ms2 payers100% up
  23. 95globalrules-api.onrender.com/api/v1/country/BR/timezoneOne specific fact for one country: VAT/GST rate, public holidays by country, visa requirements for travelers, tipping customs, cryptocurrency legal status by country, stablecoin regulation and capital controls, power plug type, minimum wage, corporate tax, digital nomad visa, customs duty-free allowance and more. 195 countries, 58 fields, verified sources. Example: /api/v1/country/JP/vat$0.01 Base488 ms2 payers100% up
  24. 95globalrules-api.onrender.com/api/v1/country/SG/currencyOne specific fact for one country: VAT/GST rate, public holidays by country, visa requirements for travelers, tipping customs, cryptocurrency legal status by country, stablecoin regulation and capital controls, power plug type, minimum wage, corporate tax, digital nomad visa, customs duty-free allowance and more. 195 countries, 58 fields, verified sources. Example: /api/v1/country/JP/vat$0.01 Base472 ms2 payers100% up
  25. 95api.hergertsynthora.com/v1/who-gho-timeseriesSYNTHORA who-gho-timeseries: WHO Global Health Observatory indicator time series by country (life expectancy etc.) — public-health data for research and policy agents. $0.01 USDC x402 Base. Ratings: GET /v1/ratings/who-gho-timeseries.$0.01 Base612 ms2 payers100% up
  26. 95tollbooth-fdic-verify.sjwilliams8.workers.dev/verifyBefore your agent trusts, cites, or transacts with a U.S. bank: verify it is actually FDIC-insured, for $0.01, against the FDIC's own BankFind Suite records, synced daily. Look up by institution name (fuzzy, word-order-tolerant, confidence-scored), FDIC certificate number, or website domain. Returns insurance status, charter class, HQ city/state, and the FDIC cert; renamed and failed/inactive institutions stay findable. Assistive screening signal, not a certified compliance determination.$0.01 Base785 ms2 payers100% up
  27. 95paulgraham.persona.energy/v1/x402/entities/paul-graham/retrieveSearch Paul Graham's source corpus — a source-grounded persona of the Y Combinator co-founder and essayist, built from 13,000+ cited sources: his complete essays, talks, interviews, and X posts — by semantic + lexical query and retrieve grounded packets (graded claims, quotes, evidence with citations). POST a JSON body { query, limit? (<=100), packetTypes? }. Flat micro-price per query.$0.01 Base510 ms2 payers100% up
  28. 95kaisha-api.hp-vladic.workers.dev/calendar/holidaysJapanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.$0.002 Base774 ms2 payers100% up
  29. 95glim.sh/api/v1/twitter/users/searchSearch users by keyword$0.004 Solana550 ms2 payers100% up
  30. 95conc-exe.xyz/api/concierge-intel-tvlDeFi TVL by chain and top protocols (DeFi Llama)$0.02 Base710 ms2 payers100% up
  31. 95api.oblique.markets/api/v1/paid/base-transfer-searchUse when an agent needs base transfer search. Returns Search bounded Base mainnet ERC-20 transfers by address, direction, asset, counterparty, and time window; return structured transfer records. $0.02.$0.02 Base424 ms2 payers100% up
  32. 95api.oblique.markets/api/v1/paid/ghost-bid-auditUse when an agent needs ghost bid audit. Returns Audit a selected agent offer against rejected affordable alternatives with counterfactual savings, regret, and a tamper-evident receipt. $0.01.$0.01 Base564 ms2 payers100% up
  33. 95api.oblique.markets/api/v1/paid/evidence/browserUse when an agent needs browser. Returns Run one headless browser action and return a verified evidence record. $0.02.$0.02 Base452 ms2 payers100% up
  34. 95api.oblique.markets/api/v1/paid/batch-url-jsonUse when an agent needs batch url json. Returns Prepaid batch of up to 10 HTTPS URL-to-JSON extraction jobs with one idempotent reconciled completion receipt. $0.02.$0.02 Base535 ms2 payers100% up
  35. 95api.oblique.markets/api/v1/paid/fetch-x402Use when an agent needs fetch x402. Returns Fetch and extract content from web pages, handling x402 edge payments automatically. $0.02.$0.02 Base370 ms2 payers100% up
  36. 95api.oblique.markets/api/v1/paid/base-usdc-transfer-checkUse when an agent needs base usdc transfer check. Returns Verify a Base mainnet transaction moved USDC: decodes all USDC Transfer logs from the receipt and reports settled=true only for a mined, successful tx with at least one transfer. $0.004.$0.004 Base431 ms2 payers100% up
  37. 95ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/stock_quotesGet current stock market data for one ticker, including the latest available quote, daily OHLC values, and volume from Yahoo Finance's chart feed.$0.003 Base463 ms2 payers100% up
  38. 95ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/crypto_market_snapshotFetch current USD price, market capitalization, 24-hour trading volume, 24-hour percentage change, and source update time for up to 20 crypto assets in one call.$0.004 Base508 ms2 payers100% up
  39. 95x402.ottoai.services/institutional-holdings13F holdings for any SEC-filing manager (hedge funds, asset managers) by CIK or manager ticker: latest 13F top 20 positions, amendments applied (hourly snapshot, ~1h correction lag): issuer, CUSIP, value in whole USD, share/principal amount (SH/PRN), put/call flag, reported value, position count. Whale tracking from the primary source. 13F holdings, hedge fund positions, institutional ownership. Public-domain SEC EDGAR. $0.003 per call.$0.003 Base495 ms2 payers100% up
  40. 95x402.ottoai.services/mega-reportAlpha & Intel Report — daily crypto market intelligence: headlines, Twitter sentiment, KOL alpha, trending altcoins, and yield opportunities in one report.$0.05 Base705 ms2 payers100% up
  41. 95api.deepnets.ai/api/watchlistThe active deepnets watchlist - high-volume tokens that passed the safety screen, with current safety data.$0.01 Solana567 ms2 payers100% up
  42. 95api.hergertsynthora.com/v1/polymarket-marketsSearch prediction markets ACROSS PLATFORMS (Polymarket + Kalshi) in one call: live prices, implied probability, volume, liquidity, end date and market conviction. Server-side search that actually finds the market (bitcoin, fed, election, geopolitics). For trading and forecasting agents tracking event odds. $0.05 USDC x402 Base. Input: {"input": "bitcoin"} (optional filter). Ed25519-signed.$0.05 Base792 ms2 payers100% up
  43. 95twitter.use.x402atlas.com/user-detailsGet a complete public X user profile by username.$0.006 Base456 ms2 payers100% up
  44. 95twitter.use.x402atlas.com/search-listsSearch public X lists by query.$0.006 Base437 ms2 payers100% up
  45. 95twitter.use.x402atlas.com/search-communitiesSearch public X communities by query.$0.006 Base441 ms2 payers100% up
  46. 95twitter.use.x402atlas.com/list-tweetsGet posts from a public X list.$0.006 Base437 ms2 payers100% up
  47. 95twitter.use.x402atlas.com/list-membersGet members of a public X list.$0.006 Base440 ms2 payers100% up
  48. 95twitter.use.x402atlas.com/list-detailsGet complete public information for an X list.$0.006 Base414 ms2 payers100% up
  49. 95twitter.use.x402atlas.com/community-membersGet members of an X community.$0.006 Base378 ms2 payers100% up
  50. 95twitter.use.x402atlas.com/autocompleteGet X search suggestions for a partial query.$0.006 Base394 ms2 payers100% up
  51. 95surf.cascade.fyi/api/v1/web/searchWeb search powered by Exa$0.01 Solana999 ms2 payers100% up
  52. 9510x402.com/lint/oneRun ONE named check against a live endpoint$0.015 Base617 ms2 payers100% up
  53. 95data.greeneris.io/v1/us/sec-fundamentalsAs-filed XBRL fundamentals for any SEC-registered company, straight from the EDGAR companyconcept API (updated as filings are accepted). Query: ?cik=320193 (Apple) &tag=Revenues|Assets|NetIncomeLoss|EntityCommonStockSharesOutstanding... &taxonomy=us-gaap|dei (default us-gaap) &limit=N most recent facts per unit (1-40, default 8). Each fact carries period, value, fiscal year/period, form type and filing date, grouped by unit (USD, shares...). Served with a 12h cache.$0.01 Base545 ms2 payers100% up
  54. 95data.greeneris.io/v1/uk/companyOfficial UK Companies House data in one paid call. Search: ?q=tesco returns matching companies (number, status, type, incorporation date). Profile: ?number=00445790 returns the full profile PLUS current officers and PSC (persons with significant control, the UK quasi-UBO register): names, roles, natures of control, risk flags (insolvency history, charges, overdue filings) and typed insolvency cases when history exists. Statutory register data, minimized. 24h cache.$0.01 Base580 ms2 payers100% up
  55. 95data.greeneris.io/v1/validate/ibanDeterministic IBAN check before a SEPA/international transfer: format regex, per-country length (public SWIFT registry, ~85 countries) and ISO 7064 mod-97 checksum. Query: ?iban=FR1420041010050500013M02606 (spaces/dashes tolerated). Returns valid, country, bban, and a precise failure reason. Pure offline computation, 1y cache.$0.001 Base442 ms2 payers100% up
  56. 95netintel.dev/domain-availability/checkCheck if a domain name is available for registration by querying RDAP and DNS — pass a bare name (e.g. mybrand) to sweep it across 10 popular TLDs simultaneously, or a full domain (e.g. mybrand.com) to check that single domain — returns registration status, expiry date if registered, and available/taken TLD lists so agents can find the best domain for a brand or project.$0.01 Base307 ms2 payers100% up
  57. 95stabletravel.dev/api/seats-aero/routesList airline flight route pairs covered by a Seats.aero mileage program source. These are origin/destination airport pairs, not API routes.$0.01 Base525 ms2 payers100% up
  58. 95data.greeneris.io/v1/lei/ownershipWho owns whom, from the official GLEIF LEI graph (CC0 licensed, covers 2.5M+ legal entities worldwide). Query: ?lei=5493001KJTIIGC8Y1R12. Four GLEIF lookups in one call: entity name and status, declared direct parent, ultimate parent, plus the total count and a 10-entity sample of direct children. Unknown LEI returns found=false. 24h cache.$0.005 Base501 ms2 payers100% up
  59. 95vaaya.ai/api/run/twocaptcha/solve2Captcha — submit a captcha task (reCAPTCHA, Turnstile, hCaptcha, image; ~0.3¢). Params: `task` object per 2Captcha createTask schema. Poll with twocaptcha:result.$0.01 Base403 ms2 payers100% up
  60. 95stabletravel.dev/api/flightaware/airports/KMIA/weather/observationsGet weather observations (METAR) for a specific airport$0.004 Base325 ms2 payers100% up
  61. 95agent402.tools/v1/images/generationsOpenAI-compatible image generation over x402 - point any OpenAI SDK's images.generate() at base_url https://agent402.tools/v1 and pay $0.08 per image in USDC, no API key, no signup. Served by FLUX.2 Pro with GPT-5 Image Mini as the failover; prompt in (up to 4k chars), one 1024x1024 PNG out as inline base64 (response_format b64_json). One image per call (n locked to 1). Optional zdr:true routes only to zero-data-retention providers.$0.08 Base767 ms2 payers100% up
  62. 95agent402.tools/v1/grounded/chat/completionsOpenAI-compatible chat completions GROUNDED in a live web search on every call: the gateway runs an Exa search (up to 5 results) for the prompt, hands the results to the model, and returns the answer with url_citation annotations - $0.03 per call in USDC, no API key, no signup. Model is chosen server-side like the auto tier (omit "model" or send "auto"; explicit ranked models accepted); the response adds agent402_router {category, quality, served}.$0.03 Base440 ms2 payers100% up
  63. 95vaaya.ai/api/run/apify/tweetsApify — Tweets by search term, handle, or conversation.$0.01 Base378 ms2 payers100% up
  64. 95vaaya.ai/api/run/edgar/fulltextSEC EDGAR full-text search over all filings (2001+). Pass `q` (quote for exact phrase) + optional `forms` (comma-separated: D = private fundraises, C/C-AR = Reg CF financials, 1-K/1-SA = Reg A financials, 4 = insider trades, UPLOAD/CORRESP = SEC comment letters), `startdt`/`enddt` (YYYY-MM-DD), `from` (pagination offset). Hits include the filer, date, and {accession}:{filename} ids for edgar/document.$0.01 Base575 ms2 payers100% up
  65. 95402.com.tr/api/x402/gas-oracleReturns current Base gas fees (baseFee, maxPriorityFee) and three tiered suggestions (slow, normal, fast) in Gwei, derived live from the Base RPC. Built for agents that time or cost-estimate transactions.$0.01 Base591 ms2 payers100% up
  66. 95stabletravel.dev/api/flightaware/airports/nearbyFind airports near a given latitude/longitude coordinate$0.008 Base358 ms2 payers100% up
  67. 95stabletravel.dev/api/flightaware/flights/UA123Get flight information by ident (designator, registration, or fa_flight_id)$0.01 Base358 ms2 payers100% up
  68. 95vaaya.ai/api/run/scrapingant/markdownScrapingAnt — Scrape a URL and return LLM-ready markdown (rendered in headless Chrome, then converted). Pass `url`; optional browser/wait_for_selector/proxy_country/timeout knobs. Returns `{ url, markdown }`. Alternative to crw/scrape or firecrawl/scrape when you want ScrapingAnt's proxy pool behind the fetch.$0.01 Base773 ms2 payers100% up
  69. 95netintel.dev/prediction/marketFull detail for ONE Polymarket prediction market by id or slug — question, description, every outcome with its current price (implied probability), volume, liquidity, open/close dates, resolution source, category, and status. No API key. The drill-in companion to /prediction/markets (browse/search): find a market there, then pull its full state here. Pass id or slug as query (GET) or a JSON body (POST).$0.003 Base646 ms2 payers100% up
  70. 95netintel.dev/calendar/icsTurn event fields into a valid RFC 5545 .ics calendar file — handles timed and all-day events, escaping, line folding, and a deterministic UID for idempotent re-import — so agents can publish events that import cleanly into Google, Apple, and Outlook calendars. Add ?download=1 (or Accept: text/calendar) to receive the raw .ics file with a Content-Disposition attachment header instead of the JSON envelope. Pure compute, no LLM.$0.005 Base367 ms2 payers100% up
  71. 95eltociear-tokenguard.hf.space/hacksDeFi exploit/hack history — 574+ incidents sorted by funds lost with technique, chain, classification. Filter by minimum amount (DeFiLlama).$0.02 Base935 ms2 payers100% up
  72. 95402.com.tr/api/x402/ai-extractTurn ANY text into clean, schema-enforced JSON: pass text= plus the fields you want (fields=name,email,price,date — up to 10) and get exactly those keys back, guaranteed-valid JSON via Claude structured outputs. Add list=true to extract EVERY repeated record (invoice lines, listings, table rows) as an array. Up to 16K chars per call. Not crypto-specific — the universal parse step for agent pipelines: pages, emails, receipts, logs. Many documents? ai-extract-batch: 10 in one call for $0.10.$0.05 Base912 ms2 payers100% up
  73. 95402.com.tr/api/x402/sanctions-batchPass a comma-separated list of up to 25 addresses and get an OFAC sanctions result for each, plus the flagged subset. Built for compliance agents vetting whole counterparty lists in one call.$0.03 Base969 ms2 payers100% up
  74. 95blockrun.ai/api/v1/pm/predictfun/orderbooksFetch historical orderbook snapshots for a Predict.Fun market$0.0085 Base629 ms2 payers100% up
  75. 95402.com.tr/api/x402/ai-translateLLM-quality translation as a pay-per-call primitive: send text= (up to 6K characters) and to= any language, get only the translation back — no notes, no wrapper prose, safe to pipe straight into the next step. Priced by length: $0.03 to 2,000 characters, $0.08 above — the 402 challenge quotes the price for the text you sent. No API key or subscription. Built for agents localizing content, parsing foreign-language sources, or serving multilingual users.$0.03 Base970 ms2 payers100% up
  76. 95api.relaystation.ai/v1/llm/extractProvider cost + 6%, itemized. Pull requested fields out of any text as clean JSON — schema-shaped output. ≈Opus-4.8 accuracy at ~1–5% of its cost (relaystation.ai/llm-validation). One of 11 vetted sub-cent LLM tasks on Relaystation — 155 tools, one balance.$0.01 Base610 ms2 payers100% up
  77. 95agentforge-taupe.vercel.app/v1/pingPayment flow verification for agents integrating x402: confirms your wallet and payment channel work before you spend on a real endpoint. Category: infra.$0.001 Base331 ms2 payers100% up
  78. 95agent-artifact-eta.vercel.app/api/artifacts/publishPublish agent-generated files, JSON reports, markdown, or text and return a stable public URL.$0.005 Base510 ms2 payers100% up
  79. 95api.solenrich.com/entrypoints/stonk-alerts/invokeWatchlist alerts for up to 25 reward coins since `since`: payout_landed, payout_stale (no payout for 24h+), stopped_trading (no 24h volume), holders_change (±10% default), and rewards_since (paid to holders, quote + USD). Plus current payout status per coin. From the 10-minute index in milliseconds; poll it and pass checked_at back as since.$0.02 Solana718 ms2 payers100% up
  80. 95agentaudit.waltsoft.net/v1/discoverx402 services ranked by 30-day on-chain settlement volume, optionally by category.$0.01 Base539 ms2 payers100% up
  81. 95fiatdock.com/v1/web/readRead any public web page as clean text: title, description, canonical URL, the readable body with scripts, styles and navigation stripped, the first 50 links resolved to absolute URLs, and a word count. One URL in, up to 100,000 characters out; redirects are not followed, and a page with no readable text (JavaScript-only) is 422 and not charged. Pay-per-call via x402. An empty body is answered for the published example page (https://example.com/); send {"url":"https://…"} for any other page.$0.002 Base812 ms2 payers100% up
  82. 95ausca.com/v1/extend-inboxAdd purchased time to the current expiry of one active receive-only inbox. The same inbox id, address, messages, read/delete capability, and limits remain in place. Deleted or expired inboxes cannot be revived, and prepaid expiry cannot exceed 30 days from the extension time.$0.05 Base482 ms2 payers100% up
  83. 95api.edifiedlab.com/v1/market/vol-regimeOptions-style volatility regime: ATR percentile and market-regime detection for a futures instrument.$0.011 Base963 ms2 payers100% up
  84. 95svm402.com/holdcheck/:addressHeld-position integrity check — is a token you hold STILL clean? Pass your entry-time liquidity as a baseline. Five tripwires: mint/freeze authority reactivated, honeypot, liquidity collapse (<25% of baseline), risk transformation. Verdict CLEAN / CHEAT_RISK / DEGRADED. Call this on tokens you hold to catch post-buy rug mechanics. — $0.01 USDC$0.01 Solana646 ms2 payers100% up
  85. 95receipt.schemasure.com/v1/tx/receipt-verifyCheck whether a mined Base transaction did what your agent meant it to do. Fetches the receipt, decodes its ERC-20, ERC-721 and ERC-1155 transfer and approval logs, and reports each declared movement as matched, missing or short, with the observed amount beside the expected one. Catches reverts, success with no effect, fee-on-transfer skims and transfers to recipients you never named. Returns unknown rather than guessing. Not a guarantee that a transaction was safe.$0.01 Base428 ms2 payers100% up
  86. 95payee.schemasure.com/v1/guard/payeePre-flight a Base payment destination before you send. Verifies the EIP-55 checksum, measures distance from an address you expect — catching a mistyped digit and the shared prefix-and-suffix shape of a ground look-alike — flags the zero address, burn sinks and precompiles, refuses a token offered as its own payee, and reports whether the destination can receive the asset. Returns unknown rather than guessing when bytecode does not decide it. Not a judgement of the counterparty.$0.01 Base499 ms2 payers100% up
  87. 95chainstate.schemasure.com/v1/chain/stateProfile a Base address in one call instead of four to six lookups. Returns contract or externally owned plus code size, proxy detection across all seven slot layouts including the legacy OpenZeppelin slot Base USDC uses, the resolved implementation, ERC-165 and behavioural ERC-20 detection, token metadata, requested ERC-20 balances, and denylist hits. Answers unknown rather than guessing, and null rather than false when a contract stays silent. Not a guarantee that an address is safe.$0.01 Base526 ms2 payers100% up
  88. 95sign.cyberwarex.com/decodeDecode an off-chain SIGNATURE REQUEST before you sign it: EIP-712 typed data (eth_signTypedData_v4) or a plain personal_sign string. Turns the opaque request into a human-readable summary plus security risk flags for the drainer patterns wallets miss - gasless unlimited token approvals (EIP-2612 Permit, DAI permit, Uniswap Permit2) and asset-transferring marketplace orders (Seaport). Keyless, deterministic, zero network.$0.002 Base886 ms2 payers100% up
  89. 95api.erb-llm.com/v1/longLong-form tier of a private, self-hosted LLM inference service: an 8,192-token output ceiling on a local open-weight model for summarization, drafting and multi-paragraph answers. OpenAI-compatible chat completions: send a messages array, receive standard chat.completion JSON. Pay per call in USDC on Base via x402 - no API key or account. Use the cheaper quick tier (4,096 tokens) for short answers and tool calls.$0.05 Base709 ms2 payers100% up
  90. 95api.erb-llm.com/v1/chat/completionsPrivate, self-hosted LLM inference service for agents: a local open-weight model serving OpenAI-compatible chat completions. Prompts never leave this machine - use it where data can't go to OpenAI/Anthropic. Pay per call in USDC on Base via x402, no API key or account. Chat tiers by output ceiling (quick 4,096 / long 8,192 / extended 32,768 tokens) plus cheap 768-dim embeddings for RAG and semantic search. Send a messages array, get chat.completion JSON. No wallet? Free trial: POST /v1/trial.$0.005 Base448 ms2 payers100% up
  91. 95rook-x402-service.onrender.com/v1/convertConvert between markdown, HTML, plain text, JSON and CSV. Body: { from, to, input }.$0.02 Base Sepolia389 ms2 payers100% up
  92. 95twitter.surf.cascade.fyi/api/v1/twitter/trendsTrending topics$0.001 Solana777 ms2 payers100% up
  93. 95surf.cascade.fyi/api/v1/twitter/trendsTrending topics$0.001 Solana802 ms2 payers100% up
  94. 95surf.cascade.fyi/api/v1/youtube/getFetch a YouTube transcript from a video URL or 11-char id (video_id, also accepted as ref or url); returns a presigned download URL to the transcript$0.01 Solana870 ms2 payers100% up
  95. 95api.solenrich.com/entrypoints/stonk-reward-risk/invokePayout status for a StonkFun reward coin — what a holder observes: PAYING (payout in the last 24h), STALE, NEVER, or NOT_REWARD — plus trading cost (tax bps, round-trip %) and a 0-100 health score read from the chain: fee bps and cap, withdraw authority (must be StonkFun's distributor), fee mutability, distributions and recency, flywheel, holders and concentration, quote category, age. Call before sizing a reward-coin position.$0.005 Solana331 ms2 payers100% up
  96. 95www.elements-live.com/v1/subjects/searchResolve a free-text topic, compound or material to a subject id.$0.01 Base634 ms2 payers100% up
  97. 95x402.ochinimus.app/api/base-balanceERC20 and native ETH wallet balance on Base or Ethereum mainnet, for a 0x address or an ENS name. decimals() and symbol() are read from the contract at request time rather than assumed, because assuming 18 reports a USDC balance a trillion times too large. Use when you need to answer: What does this EVM address hold? ENS is resolved through two independent resolvers and the answer is used only…$0.002 Solana641 ms2 payers100% up
  98. 95api.blockchain.info/explorer-gateway-kt/x402/charts/poolsPaid AI-agent access to Blockchain.com Explorer API$0.001 Base710 ms2 payers100% up
  99. 95api.x402ai.dev/api/embedConvert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 characters; returns {embedding: number[768], model, dimensions, elapsed_ms}. One text per call; English works best.$0.01 Base383 ms2 payers100% up
  100. 95alphapipeline-eu.onrender.com/v1/tools/ai-markdownConvert any webpage URL into clean, ad-free Markdown text optimized for LLM context windows. Paid in USDC on Base.$0.005 Base322 ms2 payers100% up