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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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Search & web
11 results
ExaSearch & webExa /search endpoint
BaseSolanaEVM chain 480+1api.exa.aifrom $0.0012 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 - 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 - CClinicalIntelPulseSearch & web
ClinicalTrials.gov lookup, deterministic. Answers "what is the status of NCT02142738", "recruiting phase-3 melanoma trials", "Pfizer trial pipeline". Single trial by NCT id (status, phase, sponsor, enrollment, dates, countries) or search by condition/sponsor with phase and status filters. Typed records straight off the official v2 API — no LLM, no key, public domain.
BaseSolanaPolygon+8clinicalintelpulse.theaslangroupllc.comfrom $0.0215 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 - PPolicyPulseSearch & web
Federal Register search, deterministic. Answers "new SEC rules on stablecoins", "is there an open comment period on AI", "when does this rule take effect". Full-text search over every US federal rule, proposed rule and notice, with effective dates, comment deadlines and docket ids — or mode=open-comments for comment periods closing soonest. Typed documents straight off the official API. No LLM, no
BaseSolanaPolygon+8policypulse.theaslangroupllc.comfrom $0.0212 endpoints - TTruthPulseSearch & web
Latest releases feed for researcher and journalist agents. Returns the newest FOIA releases, declassified documents, and court rulings governments and agencies have just made public globally.
BaseSolanaPolygon+8truthpulse.theaslangroupllc.comfrom $0.0811 endpoints - GGovSpendPulseSearch & web
Federal contract / award search and government spending lookup by keyword, NAICS, agency, or state — real-time USASpending.gov data. Returns top awards with recipient, amount, agency, period, and vendor market intelligence, for business-development and market-intelligence agents.
BaseSolanaPolygon+8govspendpulse.theaslangroupllc.comfrom $0.089 endpoints - Aapi.webextract.devSearch & web
Fetch a public web page (robots.txt respected) and return cleaned Markdown plus fixed-schema JSON: article metadata, product/price, and tables with row/column checks.
BasePolygonArbitrum+4api.webextract.devfrom $0.0022 endpoints - GGiftPulseSearch & web
Search Reloadly's gift card catalog (300+ brands, 14,000+ products/denominations across countries). Returns each product's id, brand, country, denomination range or fixed amounts, and sender fee/discount — everything needed to build a POST /api/giftcard/quote call.
BaseSolanaPolygon+8giftpulse.theaslangroupllc.comfrom $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.