Explore APIs
Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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Developer tools
225 results- Pphysician-payment-screen.iykykblog.workers.devDeveloper tools
Screen a US physician by NPI against CMS Open Payments (Sunshine Act) general-payment records. Returns total reported payments, payment count, top paying companies, natures of payment, and a factual volume verdict. Public-domain CMS data.
Basephysician-payment-screen.iykykblog.workers.devfrom $0.081 endpoint - Oosha-safety-screen.iykykblog.workers.devDeveloper tools
Employer workplace-safety verdict from OSHA enforcement data: inspections, violations (serious/willful/repeat), penalties, and fatality/severe-injury history aggregated per employer over the trailing ~5 years. Public-domain U.S. DOL data.
Baseosha-safety-screen.iykykblog.workers.devfrom $0.081 endpoint - Hholdings-13f-verify.iykykblog.workers.devDeveloper tools
SEC Form 13F aggregated holdings verdict: by manager (name or CIK) get the latest-quarter portfolio total, position count, top 10 holdings and quarter-over-quarter change; by CUSIP get how many 13F managers hold the security, aggregate value/shares and top holders. Aggregates computed from public-domain SEC Form 13F data sets.
Baseholdings-13f-verify.iykykblog.workers.devfrom $0.081 endpoint - Xx402-v2-mint-rdap-domain-lookup.vercel.appDeveloper tools
RDAP domain registration/nameserver/status lookup (keyless). POST {domain} required. Empty -> 400 not charged. New RDAP/DNS vertical (low adjacency vs DoH trivia).
Basex402-v2-mint-rdap-domain-lookup.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-cactus-structure-lookup.vercel.appDeveloper tools
NIH CACTUS chemical structure convert (keyless). POST {q|name}/{format?}. Empty -> 400 not charged.
Basex402-v2-mint-cactus-structure-lookup.vercel.appfrom $0.021 endpoint - Xx402-qr-api.vercel.appDeveloper tools
Validate an email address: format check plus a live MX record lookup on its domain
Basex402-qr-api.vercel.appfrom $0.0021 endpoint - Wwhd-enforcement-screen.iykykblog.workers.devDeveloper tools
Employer wage-and-hour enforcement verdict from U.S. DOL Wage and Hour Division (WHD) concluded compliance actions: case counts, back wages owed, employees due back wages, civil money penalties, child-labor findings, and repeat-violator flags aggregated per employer since FY2005. Public-domain U.S. DOL data.
Basewhd-enforcement-screen.iykykblog.workers.devfrom $0.081 endpoint - Wwell-011-sharescan.rainmaker-wells.workers.devDeveloper tools
Pre-share leak check ($0.005 USDC via x402). Scan text or an https text URL for your own terms (plain list, or salted-hash list sent per call, never stored) plus leak-shaped strings: emails, coordinates, IPs, AWS/GitHub/Slack/sk- keys, private keys, JWTs. Binary URLs are listed as unscanned. Max 10 MB, https only. Returns JSON hits with line numbers. A clean scan is not a clearance.
Basewell-011-sharescan.rainmaker-wells.workers.devfrom $0.0051 endpoint - Wwell-009-url-change-watch.rainmaker-wells.workers.devDeveloper tools
Fetch a public https URL, compute SHA-256 of the response body, and report whether it changed vs a prior sha256/etag ($0.01 USDC via x402). Sticky: store sha256 and call again later. Optional previous_sha256, previous_etag, include_body_if_changed. https only — http, file, data, localhost, and private IPs rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects. Returns JSON { url, final_url, cont
Basewell-009-url-change-watch.rainmaker-wells.workers.devfrom $0.011 endpoint - Wwell-007-rss-to-markdown.rainmaker-wells.workers.devDeveloper tools
Convert a public https RSS 2.0 or Atom feed URL to tidy markdown ($0.005 USDC via x402). https only — http, file, data, localhost, and private IPs are rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects. Optional max_items (default 20, cap 50). Returns JSON { url, final_url, feed_title?, feed_link?, format, items, markdown, item_count, warnings }.
Basewell-007-rss-to-markdown.rainmaker-wells.workers.devfrom $0.0051 endpoint - Wwell-004-html-to-markdown.rainmaker-wells.workers.devDeveloper tools
Convert HTML to tidy markdown ($0.005 USDC via x402). Pass html (string) and/or url (public https to fetch). At least one required; if both, prefers html and warns. URL fetches use the same allowlist as WELL-002 (https only — http/file/data/localhost/private IPs rejected; 1 MB body, ~10s timeout, max 5 redirects). Returns JSON { source, url?, final_url?, content_type?, markdown, warnings }.
Basewell-004-html-to-markdown.rainmaker-wells.workers.devfrom $0.0051 endpoint - Wwell-003-json-to-markdown.rainmaker-wells.workers.devDeveloper tools
Convert a public https URL that returns JSON to tidy markdown ($0.005 USDC via x402). https only — http, file, data, localhost, and private IPs are rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects. Requires JSON content-type or a parseable JSON body. Returns JSON { url, final_url, content_type, markdown, warnings }.
Basewell-003-json-to-markdown.rainmaker-wells.workers.devfrom $0.0051 endpoint - Wwell-002-url-to-markdown.rainmaker-wells.workers.devDeveloper tools
Convert a public https URL to markdown ($0.005 USDC via x402). https only — http, file, data, localhost, and private IPs are rejected. Caps: 1 MB body, ~10s timeout, max 5 redirects. Returns JSON { url, final_url, title?, content_type, markdown, warnings }.
Basewell-002-url-to-markdown.rainmaker-wells.workers.devfrom $0.0051 endpoint - Wwell-001-extract-table.rainmaker-wells.workers.devDeveloper tools
Extract tables from a PDF ($0.01 USDC via x402). Pass pdf_base64 or a https pdf_url. Optional schema maps headers. Optional max_pages (1-10). Returns JSON { pages, tables: [{ page, headers, rows }], warnings }. Text PDFs are parsed in-worker; scans require HOSTED_PARSER_URL.
Basewell-001-extract-table.rainmaker-wells.workers.devfrom $0.011 endpoint - Wwebsite2vatDeveloper tools
Look up VAT and company registration identifiers for one website domain.
Basewebsite2vat.comfrom $0.051 endpoint - Ttimezone-convert.x402supply.comDeveloper tools
Converts a local time in one IANA zone to up to 20 target zones. Returns local time, UTC offset, abbreviation and DST flag per target, and flags nonexistent or ambiguous local times at DST transitions.
Basetimezone-convert.x402supply.comfrom $0.0051 endpoint - GGeocode an addressDeveloper tools
Convert a free-form address or place name into ranked coordinates with a structured, normalized address. Optionally bias by country and language.
Basegeocode.openverbs.comfrom $0.0061 endpoint - NNOB7E Evidence VerdictDeveloper tools
Evaluate a claim or question against one supplied HTML or PDF source and return anchored evidence.
Baseevidence-verdict-production.up.railway.appfrom $0.011 endpoint
DNSPulseDeveloper toolsDomain & DNS intelligence — records, SSL certs, subdomain discovery.
BaseSolanadnspulse.waltsoft.netfrom $0.0051 endpoint- Ccraft-deploy.everygoodwork.ioDeveloper tools
a play of craft-deploy — You can use it for the time you paid for. What it opens for you is yours, and the creator who sold it to you keeps paying to host it.
Basecraft-deploy.everygoodwork.iofrom $1.001 endpoint - CCombinations (nCr)Developer tools
Binomial coefficient nCr = n!/(r!(n-r)!), the number of unordered r-subsets of n. Requires r ≤ n and min(r, n-r) ≤ 10000.
Basecombinatorics.openverbs.comfrom $0.0041 endpoint
x402card Freeland Travel eSIMDeveloper toolsBuy a prepaid Freeland travel eSIM and privately receive its installation QR and activation data. Pay native USDC on Base through x402; no API key or provider account is required.
Baseapi.x402card.orgfrom $0.471 endpoint- DDragons Eye LookupDeveloper tools
Dragons Eye Lookup: Prepaid vendor ransomware watch: up to 25 vendors for 30 days, webhook on new claims. Pay once; each vendor (domain or company name) is re-checked about once a day for 30 days. When one appears in a new ransomware leak-site claim from a commercially reusable source you get an HMAC-signed JSON POST at your https webhook_url (event watch.changed). A watch.created POST is sent rig
Baseapi.ransomware-tracker.comfrom $0.0112 endpoints - CCowrie AirtimeDeveloper tools
Nigerian mobile airtime top-up for MTN, Airtel, Glo and T2mobile. POST {net, msisdn, amount} with amount in Naira; priced in USD at the live NGN rate and paid in USDC or USDT. No API key or signup.
Basex402.cowriesys.comfrom $0.082 endpoints - x402.cloudless.shDeveloper tools
x402 market report (PDF) — paid per download
Basex402.cloudless.shfrom $0.0012 endpoints - Xx402-email-verifier.microtools-x402.workers.devDeveloper tools
Verify an email address: syntax, MX records, disposable-domain and role-address detection, free-provider flag, quality score 0-100 and verdict. Costs $0.001 USDC per call via x402.
Basex402-email-verifier.microtools-x402.workers.devfrom $0.0011 endpoint - Ffiling-briefDeveloper tools
Ready-made SEC briefing: latest filings per form type, filing cadence, the newest XBRL figures with period-over-period change, and pre-computed signals (recent 8-K activity, losses, net margin, revenue trend).
Basex402-data-api.x402agent.workers.devfrom $0.751 endpoint - CCompute Profitability APIDeveloper tools
Estimate hourly GPU compute profitability from revenue, rental cost and optional electricity inputs.
Basex402-compute-revenue-gateway.vercel.appfrom $0.0011 endpoint - Vvmi3089643.contaboserver.netDeveloper tools
Email address verification: syntax, domain, MX records, disposable/free-provider detection, score
Basevmi3089643.contaboserver.netfrom $0.0012 endpoints - Vvm5-openapi-x402.onrender.comDeveloper tools
Original demonstration CSV integrity report (duplicate normalized rows, invalid email/number/date, formula injection warning, inconsistent row width). Source CSV and code are public/reproducible; purchase is hosted report convenience, not exclusive IP or customer history.
Basevm5-openapi-x402.onrender.comfrom $0.00114 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.