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. 100api.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 Base101 ms2 payers100% up
  2. 100api.oblique.markets/api/v1/paid/bazaar-price-statsUse when an agent needs bazaar price stats. Returns x402 Bazaar price distribution across the latest daily full-catalogue snapshot: min/p25/p50/p75/p90/max in atomic units and USD, USD price bands with shares, and per-network listing counts with median price. Optional ?network= filter. $0.002.$0.002 Base92 ms2 payers100% up
  3. 100api.oblique.markets/api/v1/paid/keyword-extractUse when an agent needs keyword extract. Returns Ranked keyword and named-entity extraction from text, returned as clean JSON arrays — parse-validated with one automatic retry. $0.004.$0.004 Base54 ms2 payers100% up
  4. 100api.oblique.markets/api/v1/paid/people-searchUse when an agent needs people search. Returns People search for agents over a rich filter vocabulary (names, locations, skills, titles, seniority, company name/domain/industry/HQ/specialties), with bounded public-reference results and explicit nulls for private contact and employment fields. $0.10.$0.10 Base93 ms2 payers100% up
  5. 100api.oblique.markets/api/v1/paid/web-extractUse when an agent needs the readable text of a public page without running a browser or parsing HTML itself. Returns URL, title, meta description and cleaned body text of one public web page as bounded JSON. $0.03.$0.03 Base257 ms2 payers100% up
  6. 100api.oblique.markets/api/v1/paid/web-searchUse when an agent needs web search. Returns Bounded web search for agents over a public encyclopedic reference index: ranked title, URL and snippet results with offset/limit paging and a total count. $0.01.$0.01 Base265 ms2 payers100% up
  7. 100agentsvc.io/api/v1/proxy/email-verifyEmail verification: checks whether an email address really exists by asking its mail server (SMTP RCPT TO probe; no email is sent), on top of syntax, MX, disposable and role checks. Returns status deliverable, undeliverable (mailbox does not exist), catch_all (domain accepts any address), risky (disposable or mailbox full) or unknown (greylisting, server refused the check), plus the raw SMTP reply. Use it before sending outreach, to clean lead lists or to block fake sign-ups.$0.002 Base138 ms2 payers100% up
  8. 100api.xynaptic.io/v1/airport-situationXynaptic Airport Situation — real-time weather and operating conditions of any airport by ICAO code (METAR + TAF): wind, visibility, ceiling, temperature, forecast trends, and an agent-ready assessment. On-demand, parameter: ?code=LFPG.$0.05 Base55 ms2 payers100% up
  9. 100api.xynaptic.io/v1/ai-energyXynaptic AI Energy — the energy vertical agent: live spot prices, industrial energy costs + an LLM synthesis. POST { question, region? }. Real-time.$0.06 Base154 ms2 payers100% up
  10. 100x402.glassnode.com/v1/metrics/indicators/nvtNetwork Value to Transactions Ratio (NVT) — Network Value to Transactions Ratio (NVT) is market cap divided by the transferred on-chain volume measured in USD. Data by Glassnode.$0.05 Base180 ms2 payers100% up
  11. 100data.greeneris.io/v1/npm/packageOne merged call instead of two: latest-version metadata from the official npm registry plus last-week download count from api.npmjs.org (both live). Query: ?pkg=react (scoped names like @scope/name accepted). Returns version, license, deps_count + dependency names, engines, weekly_downloads. No personal maintainer data. 1h cache.$0.005 Base101 ms2 payers100% up
  12. 100agent402.tools/api/world-bank-indicatorFetch a World Bank indicator time series for a country (e.g. GDP, inflation, unemployment, population). Open data, no key.$0.005 Base136 ms2 payers100% up
  13. 100agentsvc.io/api/v1/proxy/translateTranslate text between 21 languages: en, de, fr, es, it, pt, nl, pl, sv, cs, el, ru, uk, tr, ar, hi, id, vi, zh, ja, ko. Runs on our own server (Argos Translate), so the text is not sent to a third party. Max 1000 characters per call. source_lang defaults to auto-detect; confidence is the detection confidence. Pairs without a direct model are translated via English.$0.009 Base154 ms2 payers100% up
  14. 100quartermaster.surewhynot.app/v1/diffCompact line-level diff between two texts.$0.001 Base34 ms2 payers100% up
  15. 100agent402.tools/v1/rerankRerank documents against a query over x402 - the Cohere /rerank wire ({query, documents[], top_n} -> results with relevance_score), served by cohere/rerank-v3.5, $0.002 per call in USDC, no API key, no signup. Up to 50 documents (1,600 chars each, 40k total) and a 500-char query per call.$0.002 Base88 ms2 payers100% up
  16. 100agent402.tools/v1/judgeAsk typed questions about any content and get answers your code can branch on, not prose. Send state (a string or object) and up to 8 questions keyed by your own ids: choice returns the pick, probabilities and confidence, score a fractional level index with probabilities, noul the probability of yes. Use it for routing, triage, classification and gating. Served by jev-latest with fallbacks; name one first with model. Model-backed, not deterministic.$0.001 Base129 ms2 payers100% up
  17. 100agent402.tools/api/vin-decodeDecode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's official specification - live government data, no key.$0.004 Base134 ms2 payers100% up
  18. 100x402.ochinimus.app/api/cascade-historyLiquidation cascade history: past clustered same-side flush events reconstructed from our own tape, with start and end, prints, USD total and peak print, up to 72h back. /api/cascade tells you what is happening NOW; this tells you what already happened. Use when you need to answer: Which liquidation cascades already happened?$0.03 Solana283 ms2 payers100% up
  19. 100x402.ochinimus.app/api/jito-tipsJito tips sampled on-chain: p25 to p99 in SOL of the newest transfers into Jito's tip accounts, what landed bundles actually paid, refreshed every 15 minutes (the age is in the answer), with a landing recommendation. Use when you need to answer: What tip will land my Jito bundle?$0.005 Solana186 ms2 payers100% up
  20. 100x402.ochinimus.app/api/hashHash: SHA-256, Keccak-256 (the Ethereum hash) or BLAKE2b-512 of UTF-8 text or hex bytes, as hex and 0x-hex. Use when you need to answer: What is the SHA-256, Keccak-256 or BLAKE2b hash of this input? Input up to 2 KB; over that is a 400, never billed.$0.005 Solana189 ms2 payers100% up
  21. 100x402.ochinimus.app/api/convertUnit conversion: the value converted between units of length, mass, volume, time, data, speed, area, pressure, energy or temperature, to 12 significant digits. Use when you need to answer: What is this quantity in another unit? Mixing categories is a 400, never billed.$0.005 Solana185 ms2 payers100% up
  22. 100x402.ochinimus.app/api/wikiWikipedia summary: the Wikipedia summary and lead section for a page title in any language, with the CC BY-SA 4.0 licence, the article URL and the authors link. Use when you need to answer: What does Wikipedia say about this topic? Cached 24 hours.$0.005 Solana187 ms2 payers100% up
  23. 100agent402.tools/api/skill/decode-blobSkill: Decode this blob ($0.007/call via x402 or MPP)$0.007 Base95 ms2 payers100% up
  24. 100globalrules-api.onrender.com/api/v1/country/IN/main_religionOne 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 Base108 ms2 payers100% up
  25. 100netintel.dev/asn-lookup/analyzeResolves an IP address or domain to its Autonomous System Number (ASN), network owner, country, and hosting/cloud classification — agents get structured network ownership context plus a trust score to assess infrastructure risk.$0.03 Base94 ms2 payers100% up
  26. 100http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/mcp/contract-checkInspect one public MCP HTTP endpoint, auto-detect the stateless 2026-07-28 era or fall back to the legacy initialize lifecycle, then normalize tools/list schemas into a deterministic SHA-256 contract fingerprint. Forest never invokes an advertised tool or attempts authentication. Base mainnet USDC$0.004 Base209 ms2 payers100% up
  27. 100http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/api/readinessCompose bounded API discovery with one deterministic OpenAPI or Swagger preflight into a concise agent-readiness state. The check does not authenticate, call discovered API operations, or prove business-level API correctness. Base mainnet USDC$0.006 Base297 ms2 payers100% up
  28. 100agentsvc.io/api/v1/proxy/tech-stackDetect the technologies a website uses (CMS, frameworks, analytics, CDN, web server, ecommerce, tag managers ...) from its HTML, headers, cookies, meta tags and script URLs, matched against 7,600+ open webappanalyzer fingerprints. Returns name, categories, version where visible, confidence and evidence, plus a by-category summary. Params: url (required), min_confidence (0 to 100, default 50).$0.009 Base158 ms2 payers100% up
  29. 100agentsvc.io/api/v1/proxy/web-read-batchRead 2 to 5 pages whose URLs you already know in one call, each as clean Markdown with title and description, fetched in parallel. Cheaper and faster than calling web-scrape once per URL; for 6 to 20 URLs use web-scrape-batch. A failed page is reported with its error while the others still return; charged only if at least one page was read. To find URLs first, use site-map (one site) or search-read (a question). Params: urls (1 to 5, required), max_chars per page (500 to 30000, default 6000).$0.005 Base161 ms2 payers100% up
  30. 100agentsvc.io/api/v1/proxy/product-lookupLook up a product by EAN/UPC barcode in Open Food Facts, Open Beauty Facts and Open Products Facts: name, brand, quantity, categories, ingredients, allergens, labels, nutrition per 100 g, Nutri-Score, NOVA group and image URL. Params: barcode (8 to 14 digits, required).$0.005 Base161 ms2 payers100% up
  31. 100agentsvc.io/api/v1/proxy/hyperliquidHyperliquid perpetual futures market data: mark and oracle price, 24h change, hourly funding rate and funding APR, open interest (coins and USD), 24h volume, max leverage. Pass coins (e.g. ['BTC','ETH','SOL']) or omit them to get the top markets by open interest. Params: coins (optional, max 50), limit (1 to 50, default 10, used without coins).$0.0045 Base154 ms2 payers100% up
  32. 100agentsvc.io/api/v1/proxy/erc20-infoRead an ERC20 token contract on Base, Ethereum or IOTA EVM mainnet: name, symbol, decimals, total supply, and optionally the balance of one holder address. Verifies that the address is a contract. Params: token (contract address, required), chain ('base' default, 'ethereum' or 'iota-evm'), holder (optional address).$0.0045 Base141 ms2 payers100% up
  33. 100agentsvc.io/api/v1/proxy/vat-validateValidate an EU VAT identification number live against the official EU VIES service, with registered company name and address where the member state discloses them. Checks the national format first. Not charged if the member state service is temporarily unavailable. Params: vat_number (with country prefix, e.g. NL004495445B01, DE811569869) or vat_number + country_code.$0.0045 Base158 ms2 payers100% up
  34. 100agentsvc.io/api/v1/proxy/airport-statusLive US airport disruptions from the FAA National Airspace System status: ground stops, ground delay programs (average and max delay), arrival and departure delays with trend, and closures. Pass airports (IATA like JFK or ICAO like KJFK) for a per-airport status (normal, delays, disrupted; general-aviation-only closures are listed as notices) or omit them to get all current events. US airports only. Params: airports (optional list).$0.0045 Base175 ms2 payers100% up
  35. 100agentsvc.io/api/v1/proxy/vin-decodeDecode a 17-character vehicle identification number with NHTSA vPIC: make, model, model year, trim, body, doors, engine (cylinders, displacement, hp, fuel, electrification), drive, transmission, manufacturer and plant. Validates format and the check digit (mandatory for North American VINs). Best coverage for vehicles sold in the US. Params: vin (required).$0.0035 Base160 ms2 payers100% up
  36. 100agentsvc.io/api/v1/proxy/site-mapList the URLs of a website without reading them: robots.txt, sitemaps and sitemap indexes plus homepage links, up to 1,000 same-site URLs with lastmod and source. A cheap first step to decide which pages to read with web-read-batch or site-crawl. Returns no page content. Params: url (site or domain, required), max_urls (1 to 1000, default 200).$0.0025 Base157 ms2 payers100% up
  37. 100agentsvc.io/api/v1/proxy/tron-addressTron address check: TRX balance and staked TRX, USDT and USDC (TRC-20) balances, USD value, when the account was created and last active, bandwidth and energy, and warning signals (never activated, created in the last 7 days, smart contract instead of a wallet). Use before sending USDT on Tron or to check a counterparty; fresh or never-activated receiving addresses are typical for scams.$0.002 Base158 ms2 payers100% up
  38. 100agentsvc.io/api/v1/proxy/barcodeGenerate a barcode as PNG (base64): code128 (default), ean13, ean8, upca, upce, code39, itf14, gs1_128, isbn, datamatrix, pdf417, aztec or qr. Validates check digits for EAN/UPC. Use for labels, shipping, inventory, tickets or invoices. Params: text (required), type, scale (1-8, default 3), include_text boolean (human-readable text under the bars).$0.0025 Base161 ms2 payers100% up
  39. 100agentsvc.io/api/v1/proxy/timezoneResolve a city name or coordinates to its IANA timezone and return the current local time, UTC offset, DST flag and weekday. Use for scheduling across regions, 'what time is it in X', or normalizing timestamps. Params: location (required, e.g. 'Tokyo' or '35.68,139.69').$0.002 Base162 ms2 payers100% up
  40. 100agentsvc.io/api/v1/proxy/sui-networkSui mainnet in one call: epoch, latest checkpoint, reference gas price, SUI price, total stake and every active validator with staking APY, commission and stake, sorted by APY.$0.002 Base153 ms2 payers100% up
  41. 100agentsvc.io/api/v1/proxy/iota-networkIOTA mainnet in one call: epoch, latest checkpoint, reference gas price and the fee of a simple transfer, total and circulating supply, IOTA price and market cap, total stake and every active validator with staking APY, commission and stake, sorted by APY. Use to pick a validator or to show network health.$0.002 Base159 ms2 payers100% up
  42. 100agentsvc.io/api/v1/proxy/btc-watchWatch a Bitcoin address in a loop and get only new transactions since your last call, with direction, net BTC, confirmations and time, plus the balance. First call returns recent transactions and a cursor; pass it back next time. For deposit detection and treasury or whale watching.$0.002 Base143 ms2 payers100% up
  43. 100agentsvc.io/api/v1/proxy/btc-feesBitcoin fees right now: recommended sat/vB for the next block, 30 minutes, 1 hour and economy, what a typical payment costs in USD, mempool size, tip height, next difficulty adjustment and the BTC price in USD and EUR. Call before sending a Bitcoin transaction.$0.002 Base140 ms2 payers100% up
  44. 100netintel.dev/text-summarizeSummarize text, articles or documents — condense raw text, Markdown, or a URL into a TL;DR plus key bullet points. Accepts raw text or a URL (fetched and extracted), enforces an input cap, and returns a clean structured summary so agents can compress documents and articles in one call.$0.005 Base226 ms2 payers100% up
  45. 100netintel.dev/weather/forecastMulti-day weather forecast for any city or lat/lon worldwide — up to 16 days of daily highs/lows, precipitation & probability, UV, sunrise/sunset, wind, and plain-language conditions, plus optional next-24h hourly. Give a city name (geocoded) or coordinates. No API key, metric or imperial. Pass params as query (GET) or a JSON body (POST).$0.003 Base97 ms2 payers100% up
  46. 100agent.pocket.network/v1/pmic-crypto-signalsScored crypto briefs from public chain state and CFTC data: USDT and USDC supply by chain, liquidity, CME bitcoin and ether futures positioning, on-chain ETH and BTC prices, Ethereum and L2 fees, Pocket Network health and staking. Each is a 0-100 score with trend, drivers and a citation per input. POST /v1/brief with {vertical}. Not investment advice.$0.005 Base159 ms2 payers100% up
  47. 100perp-gap-api.perpgap.workers.dev/pm/scanUse when an agent wants the most mispriced liquid Hyperliquid prediction markets right now in one call. Ranks crypto and tokenized-stock binary price markets by edge: model probability from the live perp and 7d realized vol vs bid/ask, edge in pp, spread, depth and book age; empty and illiquid books are filtered. 400/404 are free, never charged. Errors: 400, 402, 404, 502. Data, not advice.$0.05 Base47 ms2 payers100% up
  48. 1001gateway.dev/v1/kr/supplier/checkUse when an agent must vet a South Korean supplier or counterparty before paying, contracting or onboarding it. Input: one of business_number, dart_corp_code, stock_code or q (exact company name). Output: JSON summary (riskLevel, riskFlags such as closed/suspended or sanctions match, per-section status) plus NTS status, DART profile, 12-month KONEPS award summary and OFAC/EU/UK screening of the English name. Not a legal determination. Example: ?stock_code=005930$0.015 Base69 ms2 payers100% up
  49. 100synap402.com/api/billing/x402/models/gpt-oss-20b/chat/completionsSynap by Linkrra · OpenAI gpt-oss-20b — fast + cheap general model. OpenAI-compatible inference: 64K context, dedicated GPUs we operate, native 4-bit MXFP4. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). From $0.001 per call. Streaming supported.$0.001 Base245 ms2 payers100% up
  50. 100ca-tax-api-mainnet.lxtap.workers.dev/polygon/new-poolsNew trading pools created on Polygon PoS in the last N minutes on Uniswap v4, Uniswap v3$0.01 Base40 ms2 payers100% up
  51. 100synap402.com/api/billing/x402/models/qwen3-30b-a3b/chat/completionsSynap by Linkrra · Qwen3 30B A3B Instruct 2507 — general, high-throughput. OpenAI-compatible inference: 96K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). From $0.001 per call. Streaming supported.$0.001 Base221 ms2 payers100% up
  52. 100api.kadec0.xyz/v1/startup-domain-checkStartup and brand name availability check. Turns a company name into domain candidates across .com, .io, .ai, .co, .dev, .app, .xyz, .net, .org plus get-, try- and -hq .com variants, checks each against the registry over RDAP or DNS, and checks the same handle on GitHub, npm and PyPI. For naming a startup, product or project in one call. Keyless.$0.05 Base297 ms2 payers100% up
  53. 100agent402.tools/v1/judge/locateFind up to 4 things in one image: each comes back with whether it is there (a probability) and its box, as edges from 0 to 1. Preview: built on Jev features its maker labels experimental. Answers come from a model, not deterministic code.$0.002 Base92 ms2 payers100% up
  54. 100agent402.tools/v1/judge/visionAsk typed questions about up to 4 images (PNG or JPEG) and get answers your code can branch on: noul (yes/no probability), choice, score, and box (where something is, as edges from 0 to 1). Name each image, then refer to it as `name` in a question. Preview: built on Jev features its maker labels experimental. Answers come from a model, not deterministic code.$0.003 Base210 ms2 payers100% up
  55. 100keywords.duoleads.com/v1/serpGoogle search results for a query: the organic results (rank, title, URL, domain, snippet), People Also Ask questions, related searches and the page's result types, for 10, 20 or 50 results in 94 countries, from Google search results, $0.018 a call. Use when checking who ranks for a query right now. Titles and snippets are the pages' own text: untrusted. Search operators are a free 400. Bad input is a free 400; a data source failure is not charged.$0.018 Base42 ms2 payers100% up
  56. 100api.xynaptic.io/v1/rail-intermodal-compareXynaptic Intermodal Compare — train vs plane between two cities: REAL next train journeys (Navitia/SNCF: times, duration, transfers) vs flight estimate (great-circle distance, typical duration+price range, CO2 per passenger). Composite verdict: when the train wins on total door-to-door time or cost. GET ?from=Paris&to=Nice. France focus. Informational.$0.03 Base285 ms2 payers100% up
  57. 100freetier-agent-api.pages.dev/api/ssl-certTLS/SSL certificate check from public Certificate Transparency logs (Cert Spotter, crt.sh fallback): currently valid certificates for a hostname, newest first, with issuer, validity dates, days left, SAN names and an expiring-within-14-days flag. For expiry monitoring and phishing/subdomain vetting.$0.005 Base54 ms2 payers100% up
  58. 100agentpay.tools/tools/funding_spread/callCross-venue perp funding divergence for one asset: per-venue funding normalised to 8h across Binance, Bybit, OKX, Gate.io, Bitget, Hyperliquid, dYdX, MEXC and KuCoin, the spread (max-min, cheapest and dearest venue), its 7-day percentile, and a carry estimate for a given notional net of taker fees. The basis/carry arbitrage read, not the raw rates.$0.01 Base201 ms2 payers100% up
  59. 100social.duoleads.com/v1/linkedin/profileLinkedIn Profile Lookup: one public LinkedIn profile by linkedin.com/in/ URL: name, followers, about text and photo link in the shared social schema. Experience, education and contact data are not returned. Bad input is free; not found or no match is not charged.$0.02 Base48 ms2 payers100% up
  60. 100api.kadec0.xyz/v1/phone-type-detectPhone line type detection: is a number mobile, landline, VoIP, toll-free, or premium rate, and can it likely receive SMS. Classifies from the national numbering plan and flags numbers whose plan does not separate mobile from fixed lines (US, Canada) as ambiguous instead of guessing. For SMS routing, lead scoring and fraud screening. Not a live carrier lookup. Keyless.$0.02 Base117 ms2 payers100% up
  61. 100www.blockchainiq.co/api/x402/v1/analyst-packOne parameter-free daily pack from Blockchain IQ's trading desk: about 100 coins ranked by total score 0-100 with tier and eight 0-1 component scores (fundamentals, flows, on-chain, momentum, liquidity, risk, macro, news), the analyst's macro regime rating and notes, and market gates as pass, watch or block. Each section is time-stamped; never sold stale. Scores only, no raw price series. JSON, no API key. $2.00 per call. Blockchain IQ.$2.00 Base247 ms2 payers100% up
  62. 100www.blockchainiq.co/api/x402/v1/dispatch/bis-digital-money-research-reviewBlockchain IQ Dispatch, parameter-free: what the Bank for International Settlements says crypto, stablecoins and CBDCs must do. A review of 1,553 BIS papers and eight years of its annual reports: how the institution hardened against public crypto, bet on tokenised central-bank money, and 50 conditions its research sets, with the evidence and timeline. JSON with Markdown, no API key. $0.02 per call. Blockchain IQ.$0.02 Base146 ms2 payers100% up
  63. 100api.kadec0.xyz/v1/domain-age-checkDomain age checker. Returns when a domain was registered, its age in days and years, expiry and last-updated dates, and the registrar, read from the authoritative registry over RDAP with a WHOIS fallback, plus a newly-registered flag and a high, medium, or low risk indicator. For phishing and fraud screening, lead qualification, and trust scoring. Keyless.$0.03 Base97 ms2 payers100% up
  64. 100agent-data.centorprat.workers.dev/tools/app-reviews-scraperScrape App Store and Google Play reviews in one run: rating, title, text, app version, date, author, helpful votes, developer reply, country. Every review tagged with complaint themes (crash, login, billing, bugs, ads...). Keyless, cheap per review. One search per call (result caps in the input schema); failed lookups are not charged.$0.03 Base224 ms2 payers100% up
  65. 100api.glowewebsites.com/agent/store-checkIs this online store real and active? Checks a store URL (Shopify, Etsy, WooCommerce, Squarespace, Wix, BigCommerce or any site): platform, live products, price range, newest product date, contact and policy pages, and a verdict (active / looks inactive / not a store / unreachable).$0.05 Base46 ms2 payers100% up
  66. 100api.belfortagent.xyz/v1/macro/:seriesReturns one official macro series document (BLS CPI-U all items or unemployment rate, seasonally adjusted) with points and source URL. Series are included only when the source terms allow resale. Charged only when at least one record comes back; errors and empty results are free.$0.006 Base228 ms2 payers100% up
  67. 100www.blockchainiq.co/api/x402/v1/x402-marketParameter-free: the Blockchain IQ x402 Conformance Index in one call. The top 1,000 x402 sellers ranked by an A to F grade from our own daily unpaid probe of their listed endpoints: valid HTTP 402, x402 v2, payment terms, schema, 7-day uptime, price range, 30-day payers and calls, with method and sources. Dated each day; never sold when the probe is over 48 hours old. Use to screen endpoints for protocol conformance before an agent pays. JSON, no API key. $0.02 per call. Blockchain IQ.$0.02 Base174 ms2 payers100% up
  68. 100api.firstmention.uk/s/webread/readFetch a public web page and return clean structured content for agents: title and description, heading outline, main article text (boilerplate removed), markdown, links, images, tables and JSON-LD. No LLM, no API key, ~1s.$0.01 Base135 ms2 payers100% up
  69. 100x402.ottoai.services/pm-cryptoCrypto prediction markets on Polymarket: the highest-volume open BTC, ETH and crypto markets with live odds (outcome probabilities), best bid/ask, spread, 24h + total volume, liquidity, price change and end date. "Bitcoin above X", price targets, ETF and protocol events — what the prediction market ACTUALLY prices in, as flat JSON refreshed every 5 minutes. Crypto odds, Bitcoin prediction market, ETH probability. $0.001 per call.$0.001 Base200 ms2 payers100% up
  70. 100synaptic.websterberrymarketing.com/agents/04-carrier-safety-checkCheck a US motor carrier by USDOT or MC number: allowed to operate, operating authority, insurance on file, safety rating, fleet size and out-of-service rates. Source: FMCSA.$0.02 Base145 ms2 payers100% up
  71. 100api.loopholetape.com/v1/base/rhc/launches/recentRobinhood Chain (pons) new memecoin launches with holder, creator-tax and ring structure. Use to screen or poll new pons memecoin launches on Robinhood Chain (4663), optionally ring-shaped ones only; one token's full risk card is GET /v1/rhc/curve/{address}. Not for Solana.$0.01 Base226 ms2 payers100% up
  72. 100api.maxwellinternational.ai/v1/doctor/checkupx402 Doctor checkup of any x402 endpoint, without buying: whether it answers with a valid payment request, its x402 version and any problems in it, the prices and networks it asks for, its payTo wallets and response time.$0.002 Base216 ms2 payers100% up
  73. 100onchaincheck.dev/jobs/companyRemote or on-site jobs open at a company right now, from its own applicant tracking system's public job board: Greenhouse, Lever, Ashby, Workable, SmartRecruiters, Recruitee, BambooHR, Personio, Teamtailor, or Workday from a careers URL. Give a company name, website or job-board URL, with optional title, location and remote filters. Returns the newest 50 matching jobs with title, department, location, remote flag, salary when published, posting date and apply link, plus total counts.$0.005 Base54 ms2 payers100% up
  74. 100onchaincheck.dev/check/liteIs it safe to pay this address? The address-only version of /check: OFAC SDN sanctions screen, wallet age, EOA or contract, first funder and recent large transfers on Base, Ethereum, Arbitrum, Optimism or Polygon (wallet kind and activity on Solana), with the funder and counterparties screened too. Returns ok, caution or block with plain reasons. No token score (use /check for that). Rules-based, not legal advice. Errors return 4xx/5xx JSON and aren't charged.$0.01 Base45 ms2 payers100% up
  75. 100onchaincheck.dev/solana/walletPortfolio and activity of a Solana wallet: SOL and every SPL and Token-2022 balance with USD values from Jupiter, sorted by value, with dust, unpriced and empty token accounts summarized, plus the newest transaction time, transactions in the last 24 hours, and the oldest transaction in the newest 1,000, with a flag when history goes further back; plus, from our launch history, tokens it deployed and how many lost their liquidity, and deployers it funded.$0.005 Base45 ms2 payers100% up
  76. 100onchaincheck.dev/solana/tokenRug check and due-diligence snapshot of a Solana SPL or Token-2022 token: a 0-100 risk score with reasons, name, symbol, supply, mint and freeze authority, Token-2022 controls (permanent delegate, transfer fees, transfer hook, pausable), metadata mutability, top-holder concentration split into wallets and program accounts, and USD price, liquidity, volume and pools from Jupiter and DexScreener. Facts only, no buy or sell opinion. Errors return 4xx/5xx JSON and aren't charged.$0.01 Base41 ms2 payers100% up
  77. 100onchaincheck.dev/watchlistRe-check up to 5 tokens you hold or watch in one call, on Base, Ethereum, Arbitrum, Optimism, Polygon or Solana: each token's 0-100 risk score, level, reason codes, price, liquidity and a fingerprint. Send the fingerprints back as since to get what changed (new risks, owner or authority changes, liquidity or price moves of 10%+) and a short list of alerts. One price for the whole list, made for polling positions on a schedule. Rules-based, not advice.$0.01 Base185 ms2 payers100% up
  78. 100onchaincheck.dev/tokenIs this token safe? Rug check for any token on Base, Ethereum, Arbitrum, Optimism, Polygon or Solana: a 0-100 risk score with plain reasons (mint, freeze, blacklist, fee, pause or trading-switch powers, upgradeable code, holder concentration, thin liquidity, a deployer whose earlier tokens lost their liquidity), the facts behind it, and USD price and liquidity. A fingerprint sent back as since returns what changed. Rules-based, not advice. Errors return 4xx/5xx JSON and aren't charged.$0.01 Base60 ms2 payers100% up
  79. 100siliconwage.com/jobsHire AI agents to do data work. Post a funded job in USDC on Base by template and reward; the job lists immediately, agents submit evidence, and each agent is paid when the work passes the job's code check. Reading jobs is free.$0.01 Base181 ms2 payers100% up
  80. 100x402.telnyx.com/v1/chat/completions/_t/qwen3.8-27bChat completions via Telnyx Inference (Qwen/Qwen3.8-27B). OpenAI-compatible. Up to $0.015432 USDC per call, quoted to your request (input + max_tokens at list rates, no markup).$0.002 Base66 ms2 payers100% up
  81. 100api.glowewebsites.com/agent/page-textClean readable text of any public web page in one call: title, meta description, language, canonical URL, heading outline, main body text (nav/footer stripped, emails redacted, length-capped), word count, reading time, and de-duplicated internal and external links. Flags JavaScript-only pages. Deterministic, no AI.$0.01 Base46 ms2 payers100% up
  82. 100agentx402pay.com/api/pingHeartbeat endpoint billed via a batch-settlement payment channel, with a plain exact-scheme fallback ($0.001 per call). Base only. Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31, 2026). Evidence: https://x402-list.com/services/agentx402pay$0.001 Base112 ms2 payers100% up
  83. 100serp402.com/api/v1/home-depot-searchThe Home Depot: Product titles, descriptions, prices and more. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.$0.05 Base215 ms2 payers100% up
  84. 100tolca.tonbot.ca/v1/company-enrichCompany profile from a domain or name in ONE call, for sales and research agents: what the company does, industry, services, service area, address, phones and emails published by the company (each with the page it came from), social links, plus official screening (registries, US, UK, EU and Canadian sanctions lists). Read live from the company's own website, no third-party database. No website found = HTTP 404 = no charge. Input: domain or name, optional city, country, lang ($0.02 Base292 ms2 payers100% up
  85. 100check.blockpin.dev/solana/checkSolana control check (rug check) for a token mint or program: mint authority, freeze authority, Token-2022 extensions (permanent delegate, transfer hook, transfer fee, default frozen), who can change the name and image, and for a program whether it can still be upgraded and by a single key or a multisig. Use before trading a token or trusting a program. By Blockpin.$0.10 eip155:4663147 ms2 payers100% up
  86. 100api.annalist.dev/v1/packages/checkSupply-chain check of a popular package (the 8,000 most used on each of npm, PyPI, crates.io and Go): latest version and release activity, maintainers or owners, install scripts, provenance, deprecation, retractions, and what changed since we began tracking it daily: releases by a new publisher account, owner changes, install scripts added, provenance dropped, source repository moved, yanks. Account names are never published. Signed.$0.01 Base68 ms2 payers100% up
  87. 100api.annalist.dev/v1/commerce/storesStores from our weekly census of 65,000 top sites, filtered by what a shopping agent needs: ships to a country, UCP agent checkout and its capabilities, payment handlers (Google Pay, Shop Pay), currency, return window. Facts from each store's own machine-readable files, never its policy pages. Most visited first. Signed.$0.01 Base79 ms2 payers100% up
  88. 100api.annalist.dev/v1/apis/changesDated contract changes in widely used public APIs (Stripe, GitHub, OpenAI, Twilio, Slack, Plaid, Datadog and more), from their published OpenAPI descriptions read daily: operations, parameters and request fields added, removed or newly required, each change marked breaking or not. Last 1 to 90 days, one API with api=, or only breaking changes with breaking=true. Signed.$0.01 Base54 ms2 payers100% up
  89. 100api.annalist.dev/v1/ai/pricesAI model prices per million tokens (input, output, cache, batch) with context window, for about 4,000 models across providers. With model=: its price history and the same model on other providers. Without: a list filtered by provider, mode, min_context and max_input price, sorted by input, output or context. History from January 2026. Source: LiteLLM's open price file (MIT). Signed.$0.01 Base51 ms2 payers100% up
  90. 100api.annalist.dev/v1/mcp/changesTool changes across remote MCP servers in the Official MCP Registry, newest first: tools added, removed or redefined (description, input schema or annotations), from our daily fingerprints. A tool that changes after you approved it is how 'rug pull' attacks work, so check before trusting a server again. Last 1 to 30 days, or one server with name= or url=. Servers whose tools change by design are marked. Signed.$0.01 Base34 ms2 payers100% up
  91. 100relay.straelo.com/evm-gas-price-lookupRetrieve the current gas price for Ethereum or Base for transaction planning. Returns wei and gwei from a single `eth_gasPrice` JSON-RPC call; live network result may change between calls and does not estimate total transaction cost, submit a transaction, or provide execution authorization. USE WHEN: an agent needs the current EVM gas price before estimating fees or preparing a transaction. DO NOT USE WHEN: the agent needs to inspect an existing transaction by hash (use$0.001 Base203 ms2 payers100% up
  92. 100x402.ottoai.services/gas-oracleBase gas oracle from Otto's own RPC: current base fee (wei+gwei), legacy gas price, and slow/standard/fast EIP-1559 priority-fee tiers (p25/p50/p90 over the last 20 blocks) with a ready-to-sign maxFeePerGas per tier. Unlike the crowded gas shelf it PUBLISHES the formula, so every tier is reproducible from the response. Flat JSON, refreshed every minute. Base gas oracle, gas price, priority fee, EIP-1559, maxFeePerGas. $0.001 per call.$0.001 Base273 ms2 payers100% up
  93. 100x402.ottoai.services/base-seasonBase social intelligence: a Base sentiment read + quality-screened Base tokens (CoinGecko-listed, market-cap/age/liquidity gated) catching attention, each labelled with the basis it stands on (`rankedBy`: measured trusted-KOL signal, or the on-chain screen plus engagement), with KOL quotes inside a published window (`evidenceWindowDays`). Served from a cached snapshot while fresh (≤1h) and regenerated on demand when a read finds it stale.$0.002 Base225 ms2 payers100% up
  94. 100pool.linkrra.com/api/billing/x402/models/qwen3-coder-30b/chat/completionsSynap by Linkrra · Qwen3 Coder 30B A3B Instruct — coding, everyday. OpenAI-compatible inference: 96K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. From $0.001 per call. Streaming supported.$0.001 Base160 ms2 payers100% up
  95. 100minty-sprout.onrender.com/v1/tech-stackWebsite tech stack detector: frameworks, CMS, analytics, CDN and server behind a site. Input: a URL.$0.001 Base194 ms2 payers100% up
  96. 100pool.linkrra.com/api/billing/x402/models/qwen3-30b-a3b/chat/completionsSynap by Linkrra · Qwen3 30B A3B Instruct 2507 — general, high-throughput. OpenAI-compatible inference: 96K context, dedicated GPUs we operate, 4-bit AWQ. Pay per call in USDC on any network offered in the payment challenge; no account, no API key. First call free per new wallet (cheap models, up to 512 tokens, non-streaming, daily cap). From $0.001 per call. Streaming supported.$0.001 Base189 ms2 payers100% up
  97. 100fmcsa-mcp-843680657471.us-central1.run.app/x402/get_inspection_crash_summaryUse this for a carrier's roadside inspection, violation and crash counts: inspections, driver and vehicle out-of-service rates, violations by BASIC (24-month SMS window), and recordable crashes over the trailing 730 days. Counts, not a rating. Billed whenever the USDOT number resolves; an unknown number is free.$0.02 Solana270 ms2 payers100% up
  98. 100fmcsa-mcp-843680657471.us-central1.run.app/x402/check_broker_authorityUse this to check a freight broker before you accept a load or extend credit: whether it holds active broker authority, its broker dockets and how current each status is, its bond (BMC-84/85) continuity and lapses, its authority history (grants, revocations, suspensions, reinstatements) and the identity linkage screen. Give an MC number or a USDOT number. A record, not a recommendation. Billed whenever the broker resolves, including when it holds no broker authority.$0.05 Solana227 ms2 payers100% up
  99. 100intel.degenscan.io/v1/hl/candles/:coinHyperliquid OHLCV candles for any perp (main dex and HIP-3: xyz:NBIS…): interval 1m/5m/15m/1h/4h/1d, up to 500 candles, plus change %, high/low range and VWAP over the window. Market data only — not investment advice.$0.001 Base168 ms2 payers100% up
  100. 1001gateway.dev/v1/crypto/hyperliquid/candlesUse when an agent needs price history for a Hyperliquid perp or HIP-3 market (xyz:TSLA). Input: coin, interval (1m-1M, default 1h), limit (1-500, default 100), optional start/end (ISO date or unix). Output: JSON candles (time, open, high, low, close, volume, trades) plus summary: change %, high/low, volume, annualized realized volatility. Unknown coin: 400, not charged. Example: ?coin=ETH&interval=1h&limit=24$0.002 Base87 ms2 payers100% up