x402watch

37,707 paid endpoints are listed. 23,020 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 2026-09-30 05:46 UTC · 37,707 probed

23,020 answering 4029,132 down4,532 rejecting1,023 no paywall2,818 price drift
  1. 100ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/isURLURL validation API. Checks whether a string is a syntactically valid URL, catching malformed schemes, hosts, and encoding edge cases a naive check misses. Returns true or false.$0.01 Base95 ms2 payers100% up
  2. 100squeezeos-api.onrender.com/api/memory/recallAgent memory recall API — literal keyword and tag search over one agent's stored provenance-tracked memories.$0.01 Base120 ms2 payers100% up
  3. 100squeezeos-api.onrender.com/api/fred/series/CPIAUCSLFRED economic data API. Fetch the latest official Federal Reserve economic-series value and metadata by FRED series ID.$0.01 Base90 ms2 payers100% up
  4. 100api.kadec0.xyz/v1/related-queriesGoogle Trends related queries for a keyword. Returns the searches people run alongside a keyword in a given country: top queries scored 0-100 relative to each other, and rising queries with their percentage growth. Google Trends keyword expansion for SEO keyword research, content planning, and spotting breakout search demand early.$0.03 Base107 ms2 payers100% up
  5. 100api.vextorium.com/perpetuos-pagoHyperliquid perpetual futures: hourly funding rate and annualized, 24h and 7d average funding, who pays whom, mark and oracle price, premium, open interest, 24h volume and max leverage for one coin; or a ranking of all markets by highest, lowest or most extreme funding, volume or open interest, with a minimum open interest filter.$0.009 Solana297 ms2 payers100% up
  6. 100api.vextorium.com/licitaciones-pagoSpanish public procurement tenders from official PLACSP open data (Plataforma de Contratación del Sector Público): search open calls by keywords, CPV code, province, contract type (works, services, supplies) and budget. Returns title, contracting authority, budget, submission deadline, CPV codes, location, EU funding and the official link. Updated every 20 minutes.$0.01 Solana280 ms2 payers100% up
  7. 100api.vextorium.com/beefy-posiciones-pagoAll Beefy Finance vault positions of a wallet on Base, Ethereum, Arbitrum, Optimism or Polygon, read on-chain (shares and price per share) and valued in USD, including retired vaults where funds are often forgotten.$0.01 Solana146 ms2 payers100% up
  8. 100agent.pocket.network/v1/token-price-oraclesChainlink price feed reads for three pairs: ETH/USD and BTC/USD on Ethereum (chain 1) and MATIC/USD on Polygon (chain 137). POST /v1/price with {pair, chain_id} and get the latest answer, feed address and update time. Any other pair answers 400. Pay per request in USDC; no account, no API key.$0.005 Base142 ms2 payers100% up
  9. 100agent.pocket.network/v1/flight-schedules-statusLive position of one airborne aircraft from the OpenSky Network, by callsign or ICAO24 address: whether it is airborne and, if so, position, altitude, speed and heading. It does not return schedules, departure or arrival times. POST /v1/flight with {callsign} or {icao24}. Cached for 1 minute. Pay per request in USDC; no account, no API key.$0.005 Base142 ms2 payers100% up
  10. 100x402.ottoai.services/token-scoreToken score by contract address: one 0-100 composite of a Base token market structure from seven weighted factors — USD liquidity, holder concentration and count, 24h volume, market age, pool breadth, price stability. Every sub-score, weight and raw input comes back, so the score can be recomputed. A factor whose data plane is unavailable is reported absent, never filled. Market structure, not a contract-security screen. $0.01 per call.$0.01 Base290 ms2 payers100% up
  11. 100x402.agentutility.ai/product-descriptionGenerates product descriptions and e-commerce listing copy from a product name plus optional category, audience, attributes, and tone. Returns a ready-to-use description, selling points, key features, a positioning angle, and suggested listing titles. Copy stays within the product facts you send. Use it as a product description generator, e-commerce copywriter, product listing writer, or selling points API.$0.01 Base29 ms2 payers100% up
  12. 100vaaya.ai/api/run/apify/amazon-productApify — Amazon product detail pages by ASIN or URL.$0.01 Base196 ms2 payers100% up
  13. 100agent.pocket.network/v1/routing-isochronesStraight-line geometry, not road routing: a walking-radius circle (speed x time) around a point or geocoded place and, with a destination, the straight-line distance, estimated minutes and whether it is within reach. POST /v1/routing with {from or place, minutes, to}. Places are geocoded with OpenStreetMap Nominatim. Pay per request in USDC; no account, no API key.$0.005 Base141 ms2 payers100% up
  14. 100agent.pocket.network/v1/sonicSonic Mainnet JSON-RPC$0.005 Base142 ms2 payers100% up
  15. 100vaaya.ai/api/run/openwebninja/image-ocrText in an image `url` via Google Lens: paragraph, sentence and word-level detections with bounding boxes. Optional `language`. Cheap OCR for screenshots, receipts, signs, slides.$0.01 Base231 ms2 payers100% up
  16. 100toll402.dev/v1/lookupAnswer from TRUSTED sources only (Wikipedia, Wikidata, arXiv, Crossref/DOI, World Bank): returns passages with URL, reliability tier and retrieval time for citation. With synthesize=true you also get an LLM answer that cites the passages and admits when they don't contain the answer.$0.01 Base58 ms2 payers100% up
  17. 100agent.pocket.network/v1/xrplevmRead-only JSON-RPC access to the XRPL EVM sidechain mainnet, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.$0.005 Base144 ms2 payers100% up
  18. 100agent.pocket.network/v1/fuseFuse Mainnet JSON-RPC$0.005 Base141 ms2 payers100% up
  19. 100kino402.com/v1/prompts/ugc-product-videoUGC product video prompt: the compiled prompt and render plan for a 5s 9:16 energetic spot on seedance-1.5-pro$0.008 Base26 ms2 payers100% up
  20. 100vaaya.ai/api/run/openwebninja/image-objectsObjects in an image `url`: landmarks, places, plants, animals, products and other things with label, bounding box and confidence, from Google Lens.$0.01 Base197 ms2 payers100% up
  21. 100vaaya.ai/api/run/fundable/person-searchFundable — Resolve a PERSON to Fundable's own person `id`, across both investors and non-investor people. Pass exactly ONE of `name`, `id`, `linkedin`, `crunchbase`, `twitter`. The id it returns is what fundable/person-deals takes, so this is the first call when you want every round an angel or a named partner has backed and you only have their name or profile URL.$0.01 Base228 ms2 payers100% up
  22. 100agent402.tools/api/seller-dossierEverything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees with the seller's own declaration), advertised wallets against the wallets that were actually paid (own chain evidence, inherited wallets, shared claims), settlement evidence per source (our Base leaderboard, Coinbase Bazaar, Solana SPL credits, MPP transfers), the router's own.$0.05 Base129 ms2 payers100% up
  23. 100stabletravel.dev/api/flightaware/flights/JJA1191Get flight information by ident (designator, registration, or fa_flight_id)$0.01 Base112 ms2 payers100% up
  24. 100stabletravel.dev/api/flightaware/flights/JJA1105Get flight information by ident (designator, registration, or fa_flight_id)$0.01 Base115 ms2 payers100% up
  25. 100http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/product-identifiersExtract public SKU, GTIN, UPC, EAN, ISBN, MPN and provider identifiers from a product source. Missing identifiers stay null and are never guessed. Base mainnet USDC$0.002 Base114 ms2 payers100% up
  26. 100http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/variant-resolveResolve requested product options to a canonical public variant when the provider exposes them. Ambiguous or missing options are reported explicitly; no checkout or cart mutation occurs. Base mainnet USDC$0.003 Base203 ms2 payers100% up
  27. 100http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/availabilityResolve public product or listing availability with explicit normalized states. It reports only provider evidence and never infers inventory, reserves items or places an order. Base mainnet USDC$0.002 Base294 ms2 payers100% up
  28. 100api.kadec0.xyz/v1/interest-by-regionGoogle Trends interest by region for a keyword. Returns the subregional breakdown of Google Trends search interest inside a country - by state, province, or region - each ranked 0-100 relative to the strongest region. For regional demand mapping, geo targeting, and finding where a keyword over-indexes before spending on it.$0.03 Base208 ms2 payers100% up
  29. 100scvd.store/api/buy/research_comparisonResearch Comparison. REQUIRES ?urls= on the paid request — a signed request without it is refused before the gate and no money moves. One signed comparison: live atomic payment terms, dated host history and gaps, same-endpoint network changes, shared receivers and limits. No research quality or ownership verdict. Full listing: https://scvd.store/menu/research_comparison. MCP tool: buy_research_comparison.$0.01 Base125 ms2 payers100% up
  30. 100agent.pocket.network/v1/us-code-cfrUS Code and CFR Regulations$0.005 Base143 ms2 payers100% up
  31. 100agent.pocket.network/v1/url-fetch-markdownFetch a URL and return its title and readable body text, with navigation and boilerplate stripped. POST /v1/url with {url} and get one JSON object back. The text is flattened: headings, links and lists are not kept as markdown structure. Responses may be served from cache. Pay per request in USDC; no account, no API key.$0.005 Base138 ms2 payers100% up
  32. 100api.vextorium.com/detectar-idioma-pagoLanguage detection with local AI: ISO 639-1 code, language name, confidence and any mixed languages.$0.003 Solana296 ms2 payers100% up
  33. 100api.vextorium.com/nft-info-pagoNFT lookup (ERC-721 / ERC-1155): collection name, owner, token URI and metadata (name, description, image, attributes).$0.005 Solana205 ms2 payers100% up
  34. 100api.vextorium.com/clasificar-pagoZero-shot text classification with local AI: pick the best label (or several) from your own list, with confidence and reason.$0.005 Solana226 ms2 payers100% up
  35. 100api.vextorium.com/cabeceras-seguridad-pagoWebsite security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.$0.005 Solana245 ms2 payers100% up
  36. 100api.vextorium.com/traducir-pagoTranslate text to any language with local AI (Qwen2.5-7B), preserving formatting, names and numbers; detects the source language.$0.008 Solana199 ms2 payers100% up
  37. 100api.vextorium.com/token-riesgo-pagoERC-20 admin-control check: detects owner privileges, upgradeable proxy, mint, pause, blacklist and fee-setting functions in the contract code. Measures issuer control, not a scam verdict.$0.008 Solana209 ms2 payers100% up
  38. 100api.vextorium.com/saldo-multired-pagoOne address across five EVM chains (Base, Ethereum, Arbitrum, Optimism, Polygon): native coin and USDC balance per chain and total USD value.$0.008 Solana198 ms2 payers100% up
  39. 100api.vextorium.com/extraer-datos-pagoStructured data extraction with local AI: give a text and a list of field names, get a JSON object with those fields (null when absent).$0.008 Solana176 ms2 payers100% up
  40. 100x402.ochinimus.app/api/funding-crossFetch funding cross: funding rate for any usdt perp across$0.01 solana300 ms2 payers100% up
  41. 100api.loopholetape.com/v1/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 Solana221 ms2 payers100% up
  42. 100agent.pocket.network/v1/headless-browser-renderFetch a web page and return its title and raw HTML (up to 200,000 characters). No browser engine is used and JavaScript is not executed, despite the name. POST /v1/render with {url} and get one JSON object back. Pages are cached for 5 minutes. Pay per request in USDC; no account, no API key.$0.005 Base144 ms2 payers100% up
  43. 100agent.pocket.network/v1/structured-web-extractionFetch a web page and return structured data: standard fields (title, description, language, h1, OpenGraph, author, published), headings, JSON-LD and a text excerpt. Optional schema picks named fields or applies regexes to the HTML. POST /v1/url with {url}. JavaScript is not executed; pages are cached for 10 minutes. Pay per request in USDC; no account, no API key.$0.005 Base140 ms2 payers100% up
  44. 100agent.pocket.network/v1/rss-atom-normalizationRSS Atom Normalization$0.005 Base140 ms2 payers100% up
  45. 100x402.freeq.one/tools/document_to_markdownDocument to Markdown (auto-detect): Convert any document to Markdown with automatic format detection. One endpoint for pdf, docx, pptx, xlsx, csv, epub, html and plain text — provide a URL or base64 bytes and the type is detected from the file contents. Spreadsheets return both a Markdown table and a JSON array of rows. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/document_to_markdown.$0.01 Base77 ms2 payers100% up
  46. 100api.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 Solana207 ms2 payers100% up
  47. 100agent.pocket.network/v1/kr-export-pulse-v1South Korea's export statistics from Korea Customs Service: 10-day provisional totals for semiconductors, cars and 8 other major items, changes versus the prior month and year with item contributions, monthly trade by HS code and country, and a revision log. GET /v1/pulse, /v1/tenday, /v1/hs?hs=, or POST /v1/query in Korean or English. Pay per request in USDC; no API key.$0.005 Base122 ms2 payers100% up
  48. 100agent.pocket.network/v1/dart-kr-events-v1Korean listed-company disclosures from OpenDART: filings tagged original, correction or withdrawal, corrections linked to originals with term diffs, and a point-in-time view. GET /v1/corp?name=, /v1/filings, /v1/changes, /v1/asof with an 8-digit corp_code, or POST /v1/query with a question in Korean or English. Pay per request in USDC; no account, no API key.$0.005 Base118 ms2 payers100% up
  49. 100agent.pocket.network/v1/sentiment-classificationSentiment Classification$0.005 Base140 ms2 payers100% up
  50. 100agent.pocket.network/v1/crypto-fx-market-dataCurrent crypto prices and 24-hour change from the CoinGecko public API. POST /v1/market with {ids, vs} using comma-separated CoinGecko coin ids (e.g. bitcoin,ethereum) and get one JSON object back. Cached for 60 seconds. Pay per request in USDC; no account, no API key.$0.005 Base141 ms2 payers100% up
  51. 100agent.pocket.network/v1/fraxtalFraxtal Mainnet JSON-RPC$0.005 Base141 ms2 payers100% up
  52. 100agent.pocket.network/v1/gas-price-oracleMulti-chain gas price oracle: current base fee plus priority-fee tiers for EVM chains. POST /v1/gas with {chain_id} and get the base fee and slow/standard/fast tiers as one JSON object. Deterministic per read instant. Pay per request in USDC; no account, no API key.$0.005 Base140 ms2 payers100% up
  53. 100agent.pocket.network/v1/us-macroUS macroeconomic time series as stable JSON: CPI, unemployment, payrolls, GDP, and rates, with alias sets. POST /v1/us with a {series} and get the observations as one JSON object. Deterministic per source vintage. Pay per request in USDC; no account, no API key.$0.005 Base145 ms2 payers100% up
  54. 100agent.pocket.network/v1/table-extractionTable Extraction from Text$0.005 Base141 ms2 payers100% up
  55. 100goodsong.dev/verify/packageVerify a package: does it exist, is it deprecated or yanked, and does it have known vulnerabilities? Checked against the npm/PyPI/crates.io registry plus OSV.dev advisories.$0.005 Base145 ms2 payers100% up
  56. 100netintel.dev/web/searchWeb search for AI agents — one query in, ranked live results out (title, url, published_date, author, score, optional snippets). Neural + keyword modes, category/domain/date filters. For a direct answer use /exa/answer. Keyless x402, pay per call on Base or Solana.$0.01 Base78 ms2 payers100% up
  57. 100mart402.com/v1/jp-social-insuranceJapan social insurance premiums: monthly remuneration to grade + health/care/pension/employment premiums from the official Kyokai-Kenpo FY2026 grade table, all 47 prefectures, official rounding. $0.01/call.$0.01 Base156 ms2 payers100% up
  58. 100mart402.com/v1/jp-bonus-netJapan bonus net pay: social insurance premiums and withholding tax from the official bonus rate table (needs previous-month salary). Deterministic, cited sources. $0.01/call.$0.01 Base169 ms2 payers100% up
  59. 100netintel.dev/exa/searchExa neural web search for AI agents — POST or GET a query, get ranked live results (title, url, published_date, author, score) with optional highlight snippets. Filter by category (news, research paper, github, company, pdf, and more), domain include/exclude, and publish date. For a direct answer use /exa/answer. No API key, pay per call on Base or Solana.$0.01 Base288 ms2 payers100% up
  60. 100mcp.zensched.com/x402/tools/worker_searchZenSched `worker_search` — Search your org's workers by name/email. Returns status (invited/active). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base214 ms2 payers100% up
  61. 100mcp.zensched.com/x402/tools/webhook_registerZenSched `webhook_register` — Register an HTTPS webhook. events_json = JSON list from: ['worker.invited', 'worker.activated', 'shift.checkin', 'shift.checkout', 'shift.missed', 'form.submitted', 'timesheet.ready', 'billing.low_balance', 'webhook.disabled']. Returns the HMAC signing secret (or pass your own). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base266 ms2 payers100% up
  62. 100mcp.zensched.com/x402/tools/usage_getZenSched `usage_get` — Meter usage + spend for a period (YYYY-MM; blank = current month). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base243 ms2 payers100% up
  63. 100mcp.zensched.com/x402/tools/timesheet_statusZenSched `timesheet_status` — Shift-pair timesheet status for a period: complete/open, hours, GPS, approval/lock flags, pending edits. period: YYYY-MM, YYYY-MM-DD:YYYY-MM-DD, current (payroll window), or blank (calendar month). Optional worker_id, worker_ids_json, event_id. level: 0/1/2 vendor approval level (default 0 = approved_0). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base268 ms2 payers100% up
  64. 100mcp.zensched.com/x402/tools/shift_listZenSched `shift_list` — List shifts with filters: event_id, worker_id, brand_id, date_from/date_to (YYYY-MM-DD), status (scheduled/checked_in/checked_out/missed). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base290 ms2 payers100% up
  65. 100mcp.zensched.com/x402/tools/report_summaryZenSched `report_summary` — Period summary: shifts scheduled/completed/missed, GPS verifications, form submissions, hours worked, spend. Optional brand_id filter. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base279 ms2 payers100% up
  66. 100mcp.zensched.com/x402/tools/brand_listZenSched `brand_list` — List brands with their policy and event counts. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base205 ms2 payers100% up
  67. 100mcp.zensched.com/x402/tools/brand_createZenSched `brand_create` — Create a brand — a section for unrelated lines of work (different clients/campaigns). Each brand points at a talent policy (geofencing, reminders, required forms). Optional color (#rrggbb). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base97 ms2 payers100% up
  68. 100mcp.zensched.com/x402/tools/billing_statusZenSched `billing_status` — Billing state: plan, prepaid balance, attached payment rails, meter prices, and the x402 funding offer. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base182 ms2 payers100% up
  69. 100mcp.zensched.com/x402/tools/billing_portal_linkZenSched `billing_portal_link` — Stripe Customer Portal link for human billing management. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base240 ms2 payers100% up
  70. 100mcp.zensched.com/x402/tools/api_key_listZenSched `api_key_list` — List active API keys (redacted prefixes only). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base270 ms2 payers100% up
  71. 100mcp.zensched.com/x402/tools/account_setupZenSched `account_setup` — Cold-start snapshot of your org: account, brands, policies, webhooks, API keys (redacted). Use with account_activity to resume work in a fresh session. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base101 ms2 payers100% up
  72. 100mcp.zensched.com/x402/tools/account_set_contactZenSched `account_set_contact` — Attach a contact email to an email-less org (enables human recovery/sign-in). Two steps: 1) Call with email only to send OTP. 2) Call with email + code to verify and attach. Once attached, this email can be used for account_signin_start and account_recover_start. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base277 ms2 payers100% up
  73. 100mcp.zensched.com/x402/tools/account_getZenSched `account_get` — Org profile: name, tier, object counts, payroll period, billing state. Requires a connected OAuth token or Bearer zsc_ key. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base93 ms2 payers100% up
  74. 100mcp.zensched.com/x402/tools/account_exportZenSched `account_export` — Full org data export (JSON download). Limited to 1/day. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base208 ms2 payers100% up
  75. 100mcp.zensched.com/x402/tools/account_activityZenSched `account_activity` — Audit log of every mutating call your org's keys have made. Filters: since (ISO date), tool_filter (tool name), limit/offset. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools$0.01 Base222 ms2 payers100% up
  76. 100mcp.dropenginehq.com/api/mcp-server-inspectMCP Server Inspector$0.01 Base106 ms2 payers100% up
  77. 100vaaya.ai/api/run/contactout/people-searchSearch ContactOut's 300M-profile people database by `name`, `job_title[]`, `company[]`, `skills[]`, `location[]`, `industry[]`, `seniority[]`, `current_titles_only`, `company_filter` (current/past/both). Boolean operators AND/OR/NOT work inside title/skill strings. Priced PER PROFILE RETURNED (`page_size`, default 10, max 25) — a page of 10 costs 10¢ whether or not you enrich anyone. Returns profiles with LinkedIn URLs + `contact_availability` flags; feed the URLs you like into contactout/linke…$0.10 Base259 ms2 payers100% up
  78. 100fiatdock.com/s/svc_b799f98d-63dd-4674-bc0b-a83e1eaadccdPay-per-call: US federal business-day calendar$0.01 Base146 ms2 payers100% up
  79. 100aayatai.com/defi/protocoldefi/protocol ($0.01)$0.01 Base22 ms2 payers100% up
  80. 100holdsup.app/api/v1/statsSite-wide tallies: published episodes, shows, checked claims and cited studies.$0.01 Base170 ms2 payers100% up
  81. 100goodsong.dev/verify/caseVerify a legal case citation: does it exist, and does the given case name match the canonical record? Catches a fabricated case citation, including a real-looking citation number paired with an invented case name. Checked against CourtListener. Does not check whether a case is still good law -- no free authoritative source publishes that.$0.01 Base145 ms2 payers100% up
  82. 100flat-rate-llm.kikoribera03.workers.dev/v1/evm/token-safetyPre-trade risk check for any ERC20 on Base, Ethereum, Polygon, Arbitrum or Optimism, straight from the deployed bytecode and live state. Detects mint, pause, blacklist, upgradeable proxy and mutable buy/sell tax powers, and reports whether ownership is renounced. Unlike LLM-written verdicts this returns the EVIDENCE - the exact selector found and its byte offset - so an agent can apply its own policy. Deterministic: same contract, same answer.$0.01 Base24 ms2 payers100% up
  83. 100audit.152-53-82-29.sslip.io/v1/bestsellersTop-selling x402 bazaar services by unique paying buyers in the last 30 days. Send {"limit":25}, optionally with {"query":"weather"} or {"max_price_usd":0.01}. Per listing: resource URL, host, price, networks, 30-day calls and unique payers, last call time, and description, plus a host leaderboard. Skips listings whose only payment is their own indexing call. From Coinbase discovery metrics, refreshed every 6 hours.$0.01 Base56 ms2 payers100% up
  84. 100api.oblique.markets/api/v1/paid/chat-completionUse when an agent needs chat completion. Returns One bounded chat completion (standard messages request shape) per paid call, with no account to open and no provider key to hold; max 24,000 input characters and 600 output tokens. $0.01.$0.01 Base45 ms2 payers100% up
  85. 100alphapipeline-eu.onrender.com/v1/calendar/macro-ddayStatic 2026 macro calendar - countdown to the nearest FOMC rate decision, US CPI, or US Employment Situation (NFP) release, with impact tags and the next few upcoming events. No live external API call is made; dates are pre-loaded from official Fed/BLS schedules. Paid in USDC on Base.$0.01 Base240 ms2 payers100% up
  86. 100x402.agentindex.world/discoverFind MCP servers matching a need, ranked by semantic similarity over a curated snapshot of 10101 MCP servers. Returns name, endpoint, description, source registry and a 0-1 relevance per match. Paid POST: up to 25 matches. Try GET /discover/sample.$0.001 Base157 ms2 payers100% up
  87. 100x402-factory.com/v1/aviation/delay-risk/BOSBOS weather delay risk for the next 48 hours — Weather-driven delay risk for Boston Logan (BOS) over the next 48 hours: 6-hour risk scores from forecast wind gusts, convective potential, winter and sustained precipitation, and heavy cloud cover at the field. Same shape as the generic delay-risk endpoint, bound to BOS.$0.02 Base62 ms2 payers100% up
  88. 100rubric-protocol.com/v1/x402/decision-verifyVerify a Rubric decision attestation (DAR/0.1): Merkle inclusion proof, HCS anchor ref, service signature status, drift flag. Pass agentId instead for a chain-check continuity report. Not found means no charge. $0.10 either mode.$0.10 Base255 ms2 payers100% up
  89. 100kronossignals.com/api/v1/implied-prob/btcOptions-implied probability that BTC or ETH is above each given price at a target time, from the Deribit option book (skew-inclusive call-spread digitals): the options market's fair value for Kalshi/Polymarket crypto threshold contracts, not a forecast. Query: strikes=85000,90000 (up to 25), at=ISO time or Unix. $0.02 USDC via x402.$0.02 Base239 ms2 payers100% up
  90. 100wallet-services-poc-clean.3hz-services.workers.dev/fx-rateDaily reference foreign-exchange rate for any supported fiat currency pair using Frankfurter/ECB reference data. Query base and quote ISO 4217 codes. For conversion, normalization, accounting and reporting; not live trading data.$0.001 Base Sepolia217 ms2 payers100% up
  91. 100x402.ottoai.services/stock-poolsFind the DEX pools a tokenized US stock is a member of, on Robinhood Chain, Base, BNB Chain or Solana. Returns pool id (v4 ids kept distinct from v3 addresses), DEX, the side the stock is on, the counterpart with an evidence-backed class, reported USD liquidity, 24h volume and pool age. Membership discovery only: a provider-covered read, not a census; no APR, no execution; a return is the stock's only where it is the base token. $0.001 per call.$0.001 Base179 ms2 payers100% up
  92. 100api.prereason.com/api/treasuriesBitcoin holdings for every tracked public company, each row carrying its own source, as-of date, filing URL and verification tier so an estimate is never mistaken for a filed figure.$0.03 Base145 ms2 payers100% up
  93. 100api.macaroonnetwork.com/execute/nhtsa-vehicle-recall-search-v1Look up official U.S. vehicle safety recalls by make, model, and model year -- campaign number, affected component, defect summary, safety consequence, and remedy. The only source used is the National Highway Traffic Safety Administration's own public API (api.nhtsa.gov). Restricted to recall lookup only for v1; NHTSA safety ratings and complaint records are a different part of the same API family and are not covered.$0.002 Base185 ms2 payers100% up
  94. 100api.macaroonnetwork.com/execute/domain-trust-report-v1Single higher-value composite report for one domain: DNS resolution, TLS/SSL certificate validity and issuer, RDAP/WHOIS registration and nameservers, and email deliverability (MX/SPF/DMARC) signals, plus a derived trust score and risk band. Built entirely from already-cleared, already-live internal capabilities (domain-dns-check-v1, domain-ssl-check-v1, domain-whois-lookup-v1, email-domain-deliverability-check-v1) -- no new source, no new licence question, no proprietary reputation database.$0.005 Base176 ms2 payers100% up
  95. 100enclave402.com/api/agent/attestEIP-712 signed, timestamped attestation binding an agentId, the keccak256 digest of a declared state, and the paying wallet; attestor key at /transparency, verify offline with ethers.verifyTypedData. MUST be invoked when an agent needs third-party, non-repudiable proof that a state or decision existed at a point in time (audit trails, hand-offs, escrow). Do NOT use for hardware TEE, zk proofs or on-chain EAS. Settles $0.040 USDC via x402 on Base; no charge on failure; receipts at /api/ledger.$0.04 Base39 ms2 payers100% up
  96. 100enclave402.com/api/storage/pinStore a JSON document (object or string, up to 8 KB) on IPFS through a managed pinning service and return its content identifier (CID v1) plus an HTTP gateway URL. MUST be invoked when an agent needs durable, content-addressed storage for memory, decisions, artifacts or metadata that other agents can fetch by CID. Do NOT send raw binary, files over 8 KB, or an existing CID to re-pin. Settles $0.008 USDC via x402 on Base; failed or unavailable pins are never charged; receipts at /api/ledger.$0.008 Base38 ms2 payers100% up
  97. 100mcp.courtdelta.com/x402/search-judgmentsSearch the North Carolina (NC) money-judgment and criminal-sentence index by party or case. This is the JUDGMENT index, not the case index: what was ORDERED and what is owed, rather than what was filed. Fast (~1-3s) — the upstream is a plain OData service with no portal session behind it. Read-only, NC only. Informational, not legal advice.$0.05 Base79 ms2 payers100% up
  98. 100api.grid-hub.app/v1/price/:zoneHistorical price time series for one electricity zone, oldest-first, max 31 days per call (start/end are Unix seconds; default last 24h; limit caps rows). Use for trends and backtests; use /v1/latest or /v1/brief for current values. Zone ids from /v1/zones.$0.01 Base31 ms2 payers100% up
  99. 100api.oblique.markets/api/v1/paid/mpp-admission-gateUse when an agent needs mpp admission gate. Returns Admit one service from the live MPP public catalog for a task, price cap, Tempo rail and freshness constraint, or return a deterministic refusal with catalog evidence. $0.005.$0.005 Base246 ms2 payers100% up
  100. 100api.oblique.markets/api/v1/paid/payer-profileUse when a Base address just paid you and you want to know what it is before you act on it. Returns its public x402 payment footprint in the window (payments, distinct recipients, cadence, native activity, what this shop has seen of it) and a class with evidence and confidence — disclosed_scout, scheduled_verifier, catalogue_sweep, paying_index, repeat_buyer, single_touch — plus the rule for reading it. Not an identity claim. Free doors: /api/v1/payer-profile/example and /classes.$0.01 Base215 ms2 payers100% up