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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- Paid calls · 30 days
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Search & web
43 results
ExaSearch & webExa /search endpoint
BaseSolanaEVM chain 480+1api.exa.aifrom $0.0012 endpoints- SStableTravelSearch & web
Search cached Seats.aero award availability by origin, destination, dates, cabin, carriers, and pagination.
SolanaBasestabletravel.devfrom $0.00459 endpoints
BitrefillSearch & webSearch 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.
BaseArbitrumPolygon+2api.bitrefill.comfrom $0.0018 endpoints- Aapi.you.comSearch & web
You.com Search API: real-time web search returning ranked results grouped by section (results.web, results.news), each with url, title and description; web results also carry snippets. Use when an agent needs fresh, citable web data (news, markets, company facts) to ground a decision. Query params: query (required), count 1-100 (default 10), livecrawl (web|news|all; fetches live page contents, cha
BaseSolanaapi.you.comfrom $0.0052 endpoints - SSiteCheck Health & TravelSearch & web
Live Bring a Trailer auctions (collector cars, motorcycles, parts), optionally filtered by words in the title (e.g. porsche 911) or no-reserve only: title, model year, current bid with currency, auction end time, no-reserve flag, country and listing URL, soonest-ending first, from BaT's public auctions page.
BaseSolanaEVM chain 5042+9api.healthtravel-api.workers.devfrom $0.002121 endpoints - Aagentbit.appSearch & web
Web search API for AI agents — find current information, news, documentation, competitors, prices or any fact that needs a fresh, citable source. Pay-per-call, no API key. Returns ranked results with title, URL, snippet, publish date and source from neural + keyword search over the live web, with automatic provider failover. Use when an agent asks: search the web, look up the latest on a topic, fi
BasePolygonArbitrum+2agentbit.appfrom $0.00197 endpoints - Xx402.browserbase.comSearch & web
Fetch a page and return content, headers, and metadata. $0.01 per request.
BaseSolanax402.browserbase.comfrom $0.0112 endpoints - Ttravel.brij.fiSearch & web
Flight search
Solanatravel.brij.fifrom $0.013 endpoints
Bob Research ToolsSearch & webPlain web search. Returns ranked results (title, URL and a short snippet) for a query, up to 10, optionally limited to a publish-date range with since and until (YYYY-MM-DD). No AI-written answer, so it is fast: typically under a second. If it cannot return results you get an error and are not charged.
BaseSolanabob.assimilatethis.comfrom $0.0055 endpoints- AAgentic ReservationsSearch & web
Live restaurant wait times from camera-based crowd data. One call lists every monitored location with its slug, open status, current crowd count, and wait in minutes.
BaseSolanaagentic-reservations.vercel.appfrom $0.012 endpoints - SScrapeCheckSearch & web
Checksum tier (deterministic, no LLM): verifies the exact bytes served at a public URL hash to a claimed sha256, by independent double re-fetch. Use it to confirm a download or artifact matches its published checksum. Bodies up to 3 MB; dynamic pages return unverifiable, never a guess. sha256 only. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to
BasePolygonSolanascrapecheck.fly.devfrom $0.0026 endpoints - CCompliancePulseSearch & web
Who is this company, officially? Global LEI lookup and legal-entity search against GLEIF, the ISO 17442 registry behind KYB, MiFID and EMIR reporting. Verify an LEI's checksum and registration status, or search 2.9M+ entities by name and country to find the right identifier. Flags LAPSED, DUPLICATE and RETIRED registrations that a naive first-hit lookup would wire into a KYB record. Deterministic:
BaseSolanaPolygon+8compliancepulse.theaslangroupllc.comfrom $0.0113 endpoints - TTrending Topics (Wikipedia)Search & web
What is trending right now: the most-read Wikipedia articles for a language and day (default yesterday UTC), with views and rank, cleaned of the Main Page, special and other non-article pages. A daily signal of trending topics, breaking news and current events in 300+ Wikipedia language editions. Suited to trend discovery, news monitoring and content ideas.
BaseSolanaattention-trends.shopttyass-85f.workers.devfrom $0.0056 endpoints - AAgentic ReservationsSearch & web
Restaurant recommendations from the Blackbird network (~2,000 curated restaurants, mostly NYC and San Francisco). Full-text search plus city/neighborhood filters, with complete specials on every result, refreshed daily from a cache (never a live call) — e.g. every West Village restaurant with its current Fly-reward offers in one call.
BaseSolanaagentres.devfrom $0.014 endpoints - GGEDX402 SearchSearch & web
Tavily web search — POST { query, max_results?: 5 } on search.gedx402.com; ranked results via Tavily API. $0.042 USDC per request. AM-winning shape at /v1/search. Agent search: tavily, web search, serp, search lite, semantic search.
BasePolygonArbitrum+2search.gedx402.comfrom $0.016 endpoints - UUS Regulations PipelineSearch & web
US federal regulations in the pipeline — documents on public inspection at the Federal Register, filed by agencies and scheduled to publish, with type, agencies, filing time and the scheduled date. Use to see tomorrow's rules, notices and executive orders before they are published.
BasePolygonArbitrum+1us-regulations.use.x402atlas.comfrom $0.0055 endpoints - GGDELT Global News IntelligenceSearch & web
Global news article search by GDELT — normalized fulltext search across worldwide media (query syntax: phrases, OR, sourcecountry, theme, tone) returned as a clean snake_case envelope.
BasePolygonArbitrum+1gdelt.use.x402atlas.comfrom $0.0052 endpoints - EEarthquake IntelligenceSearch & web
Recent earthquakes — search newest-first USGS seismic events by rolling time window and minimum magnitude, with revision, freshness, and provenance.
BasePolygonArbitrum+1earthquakes.use.x402atlas.comfrom $0.0052 endpoints - Mmesh402.wreckbots.ioSearch & web
Read a public web page as it is seen from up to 3 countries (residential and datacenter vantage points), returned as clean text with title and language, plus whether the countries see the same content. Respects robots.txt and Content-Signal. Not charged if the page cannot be read.
BaseSolanamesh402.wreckbots.iofrom $0.0023 endpoints - SSCOPE Research APISearch & web
Research a company and return company intelligence using current public sources. Covers business facts, products, competitors, competitor analysis, recent developments, risks, positioning, and citations.
BaseSolanascopeapi.devfrom $0.0035 endpoints - NNetIntel RouterSearch & web
Which x402 endpoint should I call? Describe the job in plain words; get the 3 best endpoints from different providers, each health-checked live just now, with its current price quote, its inputs and the reasons — ranked over the whole Coinbase Bazaar catalog by fit, real paying demand and health. Uncharged when nothing passes.
BaseSolanarouter.netintel.devfrom $0.0022 endpoints - VViewportWitness by Apex LabsSearch & web
DOM to Markdown: extract readable content from a public HTML webpage
BaseSolanaqa.honeygate.appfrom $0.0053 endpoints - Aapi.ambolt.devSearch & web
Resolve a company name, website domain, registry number, LEI or VAT number to its official legal entity: registry, registry number, legal form, status, address, industry codes, size where published and LEI. Searches national registers (Norway, Finland, Czechia, Slovakia, France, UK, Latvia; Poland by KRS number) and GLEIF, scores the match and links every record to its source. Company-level only:
BasePolygonSolanaapi.ambolt.devfrom $0.011 endpoint - Ddiet.agentic-jp.comSearch & web
Search current Japanese (JP) National Diet members by name (kanji, kana, or romaji), party, or constituency. Returns matching members with their canonical ids for use with GET /members/:id. Use to resolve a politician name to a record.
BasePolygonSolanadiet.agentic-jp.comfrom $0.0051 endpoint - AAcademic Paper SearchSearch & web
Scientific and academic paper search: research papers and scholarly literature from arXiv, PubMed, OpenAlex, Crossref and Semantic Scholar in one call, deduplicated and retraction-aware. Each hit: DOI, authors, venue, snippet, citation count and citations per year, type, open-access PDF link. Sort by relevance, recency, citations or impact. Keyless. For literature review and citing research.
BasePolygonArbitrum+1papers.use.x402atlas.comfrom $0.0052 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 - 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 - CCORS Header CheckerSearch & web
Sends a real request to any URL you provide, attaches an Origin header, and reads back all six standard cross-origin permission headers the server returns. Tells you whether cross-origin requests are enabled at all, whether your specific origin is permitted, and shows every permission value exactly as the server sent it. Useful for finding why a browser is blocking a request, confirming a new depl
BaseSolanacors-header-checker.underscoredone.comfrom $0.011 endpoint - SSearch AggregatorSearch & web
Search Aggregator fast tier (GET): Serper web search via URL query params ?query=...&max_results=... , fixed price $0.01 USDC. query is required. Mode is fixed by the path.
BaseSolanasearch.combify.appfrom $0.012 endpoints - GGlobal Law SearchSearch & web
Global law search across JP/US/UK/EU legislation databases (e-Gov, eCFR, legislation.gov.uk, EUR-Lex). Structured JSON results with statute references.
BaseSolanalaw-mcp.toulaw.workers.devfrom $0.011 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.