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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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- Paid calls · 30 days
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4,150 results- SStrip HTML to textOther services
Remove all HTML tags, returning the plain text content. Entities are decoded to real characters by default (set decodeEntities=false to keep them encoded).
Basehtml.openverbs.comfrom $0.0024 endpoints - HHosakaSocial & people
Use when you have a company domain and need to know what the company is before spending more. Returns the company name and site title, domain age, registrar, mail provider, DNS provider, DMARC and HTTPS status, and a count of the third-party vendors detected. One call, no signup, no API key. The cheapest way to qualify a domain before buying a fuller record.
BasealgorandPolygon+4hosaka-agents.vercel.appfrom $0.0051 endpoint - HHacker NewsSocial & people
Hacker News stories linking to a domain in a date window: count, total points and comments, and the top stories.
BaseSolanaPolygon+1hacker-news.x402tookit.comfrom $0.027 endpoints - Ffx-reference-rates.mick8511.workers.devMarkets & finance
Currency exchange rates from the European Central Bank's official euro reference rates: convert an amount from one ISO 4217 currency to up to 30 others, today or on any date in the last 90 days. Cross rates computed via EUR.
Basefx-reference-rates.mick8511.workers.devfrom $0.0031 endpoint - FFitPulseMarkets & finance
Macro & calorie targets / nutrition by fitness goal: calculate daily intake. Returns macro and calorie targets plus a meal-timing strategy based on goal, body weight, and activity level. Fitness-info for fitness and nutrition agents, not medical advice.
BaseSolanaPolygon+8fitpulse.theaslangroupllc.comfrom $0.087 endpoints - FFinancial Analyst APICrypto & DeFi
Hotel acquisition underwriting — stabilized or bridge-to-perm value-add. Quarterly ADR x occupancy RevPAR build, other/ancillary revenue, PIP capital, construction loan with capitalized interest, permanent loan sized on min(stabilized-value LTV, purchase-price LTV, DSCR), and exit. Returns unlevered and levered project IRR and MOIC. Reconciled to a SHA-pinned Excel model — see /hotel-acq/reconcili
Basefinancial-analyst.aifrom $0.507 endpoints - Ffetchgate.devOther services
Fetch a URL server-side and return structured metadata.
Basefetchgate.devfrom $0.0016 endpoints - Ffetchwerk Web ExtractionSearch & web
Read the mandatory public disclosure of one domain and return company, postal address, e-mail, phone, VAT and register data with a source for every value.
Basefetch.halowerk.comfrom $0.0062 endpoints - GGEDX402 KnowledgeSearch & web
Rerank documents against a query with BGE Reranker Base (@cf/baai/bge-reranker-base). POST query plus documents[]; returns relevance scores for search and RAG pipelines.
Baseembed.gedx402.comfrom $0.00233 endpoints - JJSON RepairOther services
Conservatively repair common JSON syntax errors (unquoted keys, single-quoted strings, trailing commas) and parse the result; input is never evaluated as code.
Basedigitalworkerapi.comfrom $0.0012 endpoints - DDictionary and EtymologyImages, audio & video
Compare two English words side by side: parts of speech, sense counts, lead definitions and what they share.
BaseSolanaPolygon+1dictionary-wiktionary.x402tookit.comfrom $0.027 endpoints - DDeveloper UtilitiesAI & agents
Certificates in Certificate Transparency logs for a domain: recent certs, issuers, subdomains seen (Cert Spotter).
BaseSolanaPolygon+1dev-utils.x402tookit.comfrom $0.027 endpoints - AAUTOGROK DeskSearch & web
Call when you need a cheap reachability/health check before a heavier fetch. Probes a public http(s) URL (HEAD, GET fallback): status, final URL, content-type, timing. No full body download (GET peeks ≤8KB). SSRF-safe public hosts only. Not for authenticated or private network URLs.
BaseBase Sepoliadesk.grokaiapps.comfrom $0.035 endpoints - OOpen Source Vulnerability CheckSocial & people
Batch dependency vulnerability check — check ordered exact package versions in OSV with deduplicated CVE enrichment, explicit completeness, and CISA KEV known-exploited signals.
BasePolygonArbitrum+1dependency-risk.use.x402atlas.comfrom $0.0053 endpoints - CClinical Trial SearchSearch & web
Clinical trial search — find ClinicalTrials.gov studies by free text, condition, intervention, sponsor, recruitment status and phase, and get each study's NCT id, titles, status, phases, conditions, interventions, sponsor, start and completion dates, enrollment and whether results are posted. Use for drug development, medical research and patient-recruitment questions.
BasePolygonArbitrum+1clinical-trials.use.x402atlas.comfrom $0.012 endpoints - CClearCarePulseMarkets & finance
Cosmetic procedure cost intelligence for healthcare and consumer-health agents. Returns ASPS benchmarks, a total cost breakdown, and financing options for any elective procedure.
BaseSolanaPolygon+8clearcarepulse.theaslangroupllc.comfrom $0.057 endpoints - CChinese Calendar and CultureOther services
Four Pillars (BaZi) chart for a date and optional time: stems, branches, animals, five-element counts, day master.
BaseSolanaPolygon+1chinese-culture.x402tookit.comfrom $0.027 endpoints - Cch-cm-kg.aiAI & agents
One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ch-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.
Basech-cm-kg.aifrom $0.011 endpoint - BBuild Scotts Bluff Agent APIAI & agents
American Community Survey 5-year demographics for Scotts Bluff County and each of its ten places, plus a 16-year trend series: population, median household and per-capita income, poverty, median home value, gross rent, housing units and owner/renter occupancy. GET /v1/census.
Basebuildscottsbluff.comfrom $0.012 endpoints - BBiomedical Grant SearchSearch & web
NIH-funded project search — find grants by words in the title, abstract or research terms, filtered by fiscal year, NIH institute, organisation, state, activity code, SBIR/STTR mechanism or award size, with the fiscal-year award amount, investigators, organisation and dates for each. Use to see who NIH funds on a topic, how much, and which small companies.
BasePolygonArbitrum+1biomedical-grants.use.x402atlas.comfrom $0.013 endpoints
Pharos AtlasData & researchRetrieve a fixed English editorial reference for offset-printing review. It covers job records, material questions, registration and sample checks, process limits, and provenance. The response is reference material, not a production inspection or authorization.
Basebilling.pharosatlas.comfrom $0.012 endpoints- Aapi.extendivo.comOther services
Fetch a public URL with SSRF protection and clean text extraction.
Baseapi.extendivo.comfrom $0.0052 endpoints - AAdditive AtlasOther services
Find the additives named on a food label and return, for each, the cross-axis derivation across jurisdictions
Baseapi.additiveatlas.monon.spacefrom $0.012 endpoints - AAirlines ReferenceSearch & web
Convert an airline radio callsign (SPEEDBIRD) to its airline, or an airline code or name to its callsign.
BaseSolanaPolygon+1airlines-reference.x402tookit.comfrom $0.027 endpoints - Aagora-x402-production.up.railway.appData & research
Official French company data (SIRENE/RNE), cleaned: identity, geolocated HQ, NACE code, headcount, latest revenue and net income.
BaseArbitrumagora-x402-production.up.railway.appfrom $0.0041 endpoint - AAgentPage402Data & research
Extract readable text, metadata, headings, links and JSON-LD from one public static HTML page for research and retrieval.
Baseagentpage402-demo.onrender.comfrom $0.014 endpoints - TTwitter/X Tweet Media DownloaderImages, audio & video
Twitter (X) video & image downloader — pass a public tweet / X post URL, get direct CDN media links: .mp4 video URLs with thumbnails plus every image in the post, ready to stream, embed, re-host, or download. No scraping or browser automation.
BasePolygonArbitrum+1xmedia.use.x402atlas.comfrom $0.0051 endpoint - Xx402-v2-mint-wikipedia-summary.vercel.appImages, audio & video
Wikipedia page summary via REST (keyless, User-Agent required). title (+ lang) → extract/thumbnail/urls.
Basex402-v2-mint-wikipedia-summary.vercel.appfrom $0.0021 endpoint - Xx402-v2-mint-unit-converter.vercel.appDeveloper tools
Batch convert free-text quantities (SI/imperial). Factors from NIST SP 811 / CODATA where cited.
Basex402-v2-mint-unit-converter.vercel.appfrom $0.0021 endpoint - Xx402-v2-mint-tvmaze-search.vercel.appImages, audio & video
TVMaze show search (keyless). q → trimmed shows (name/type/language/genres/status/rating/url/image).
Basex402-v2-mint-tvmaze-search.vercel.appfrom $0.0021 endpoint
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.