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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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Data & research
273 results- AagentshopData & research
Patent applications filed by residents — a direct measure of domestic inventive output. Coverage is limited to the most recent available years. Source: World Bank Open Data (CC BY 4.0).
Basereportbazaar.app.workbuddy.hostfrom $0.071 endpoint - Recompete RadarData & research
Find a recipient's federal contract awards whose recorded period of performance ends within a given window.
Baserecompete.melchiorlabs.comfrom $0.031 endpoint - Ppremises.regevidencehub.comData & research
Paid premises-licence preflight. Evidence-first deterministic UK premises-licence decision with official-source freshness guards. Payment verification precedes business execution. Not licensing-authority approval or legal advice.
Basepremises.regevidencehub.comfrom $0.031 endpoint - PharmaCatalystData & research
Upcoming biotech clinical-trial catalysts (?ticker=<biotech ticker> or ?company=)
Basepharma.lonestaroracle.xyzfrom $0.051 endpoint - PPenny x402 Endpoint AuditData & research
Fetch any public URL and report whether its HTTP 402 challenge is a schema-valid x402 v2 PaymentRequired, payable in Base USDC, and catalog-ready (bazaar discovery declaration + facilitator support).
Basepenny-x402-endpoint-audit.penny-mcamp.workers.devfrom $0.011 endpoint - Oorbit Geo & TimeData & research
Geocode a place or address, $0.001 USDC per call: Forward geocoding from OpenStreetMap (Nominatim): turn a place name or address into up to 5 matches with lat/lon, full display name, type/class, importance, bounding box, and structured address (road, city, state, postcode, country, country_code). Attribution © OpenStreetMap contributors (ODbL). No match returns 404 (not charged). No params = runs
SolanaBaseorbit-geo.orbit-builder.workers.devfrom $0.0016 endpoints - Oolympusai.duckdns.orgData & research
Bounty legitimacy check for a GitHub repo or issue: merge speed, payout signals, trap and pile-up red flags, and a verdict (likely_pays / unproven / avoid). Deterministic, public-data evidence.
Baseolympusai.duckdns.orgfrom $0.011 endpoint - Nneu-x402-api.fly.devData & research
Structured-data extraction for a target URL.
Baseneu-x402-api.fly.devfrom $0.0051 endpoint - Llisting-doctorData & research
Diagnose why an x402 endpoint is (not) indexed: 402 check, header decode, catalog lookup.
Baselisting-doctor.node01.orgfrom $0.051 endpoint - Hhttpbin.orgData & research
ENI Premium Data Feed - Real-time market data
SolanaBasehttpbin.orgfrom $0.0014 endpoints - Ggoogle-patents.use.x402atlas.comData & research
No description yet.
Basegoogle-patents.use.x402atlas.comfrom $0.022 endpoints - Ffalcon-sol-agents.vercel.appData & research
falcon.sol: Use this before paying an unfamiliar x402 seller. Send a seller host from the free index at /sellers.json; get a verdict (ok, caution, do_not_pay, unknown) built from live unpaid probes of up to 5 of its listed endpoints: liveness, latency, whether each returns a well-formed 402, whether the live price and payTo match what the CDP Bazaar advertises, and delivery signals, plus a deliver
Basefalcon-sol-agents.vercel.appfrom $0.011 endpoint - Ffalcon-sol-agents.falcon-sol.workers.devData & research
falcon.sol: Use this before paying an unfamiliar x402 seller. Send a seller host from the free index at /sellers.json; get a verdict (ok, caution, do_not_pay, unknown) built from live unpaid probes of up to 5 of its listed endpoints: liveness, latency, whether each returns a well-formed 402, whether the live price and payTo match what the CDP Bazaar advertises, and delivery signals, plus a deliver
Basefalcon-sol-agents.falcon-sol.workers.devfrom $0.011 endpoint - EExactGate x402 ValidatorData & research
Free ExactGate integration catalog with paid Base diagnostic routes, prices, and request examples.
Baseexactgate-x402.insertnameheree.chatgpt.sitefrom Free2 endpoints - EnergyCatalystData & research
US energy inventory catalyst signal + EIA report calendar (optional ?report=)
Baseenergy.lonestaroracle.xyzfrom $0.051 endpoint - Dduiattorneysonline.netData & research
Publish a compliant English (en-US) or Spanish (es-US) California DUI Defense, Vehicle Code 13558 10-Day DMV APS Hearing, or Title 17 forensic blood/breath article with Ed25519 receipt ($1.00 USDC).
Baseduiattorneysonline.netfrom $1.001 endpoint - DDuet CSV PreflightData & research
Deterministic CSV preflight for import hazards
Baseduet-csv-preflight.projectlantern-review.workers.devfrom $0.0051 endpoint - Ddeadlinecheck-mainnet-production.up.railway.appData & research
Extract important application, submission, tender, grant, registration, and response deadlines from a public webpage.
Basedeadlinecheck-mainnet-production.up.railway.appfrom $0.021 endpoint - data.truefixr.comData & research
County forecast status for 1 location(s) in your list (county, window, forecast grade, timestamp). Forecasts describe what could happen. 5 cents per location, or buy a prepaid key at truefixr.com/api.
Basedata.truefixr.comfrom $0.00022 endpoints - Ccqc.regevidencehub.comData & research
CQC registration-scope and regulated-activity preflight. Deterministic England CQC regulatory decision with official-source evidence and fail-closed review conditions. Informational preflight only; not CQC approval or legal advice.
Basecqc.regevidencehub.comfrom $0.021 endpoint - Ccloudmaxi0x.comData & research
Deterministic OHLCV for an exact half-open range, with a SHA-256 Merkle manifest. Only closed candles are returned - a forming candle would hand you lookahead. Exchange decimal strings are preserved byte for byte, so the same query always yields the same root. Gaps and exchange revisions are reported rather than silently applied.
Basecloudmaxi0x.comfrom $0.00114 endpoints - Cchangecheck-mainnet-production.up.railway.appData & research
Detect meaningful changes on a public webpage compared with a previous snapshot. Useful for prices, deadlines, availability, tenders, policies and status monitoring.
Basechangecheck-mainnet-production.up.railway.appfrom $0.021 endpoint - BBrasil Data x402Data & research
Brazilian company (CNPJ) registry lookup from Receita Federal open data, normalized: legal/trade name, status, CNAE activities, address, Simples/MEI, partners (QSA). Supports alphanumeric CNPJ.
Basebrasil-data-x402.wagner-proc.workers.devfrom $0.0052 endpoints - BBaseNameData & research
Resolves ENS/Basename to an address using cached ENS Ideas data.
Basebasename-x402.vercel.appfrom $0.011 endpoint - Aastro.dutchdata.ioData & research
Location data
Baseastro.dutchdata.iofrom $0.018 endpoints - Aaster-vale-audit402.shares.zrok.ioData & research
Free zero-charge live sample returning five findings plus the purchase link for a $0.002 Audit402 report with implementation-ready remediation artifacts.
Baseaster-vale-audit402.shares.zrok.iofrom Free1 endpoint - Aapiv2.laevitas.chData & research
Cross-market contract reference data — list endpoint. Pay per request.
BaseSolanaapiv2.laevitas.chfrom $0.1028 endpoints - AgentPay Evidence BriefData & research
Cited, conflict-aware JSON intelligence brief for current-market, company, technology and regulatory questions. Returns source-bound findings, freshness, conflicts, validation evidence and a verifiable receipt.
Baseapi.x402-engine.comfrom $0.101 endpoint - Aapi.willowbirdie.comData & research
Static APK triage report
Baseapi.willowbirdie.comfrom $0.051 endpoint - Aapi.climateassured.comData & research
SB 253 / California climate reporting coverage verdict from the ClimateAssured rule tree (likely covered or not, with reasons). Informational only; verify with CARB. Free human checker at climateassured.com/am-i-covered/
Baseapi.climateassured.comfrom $0.052 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.