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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Data & research
273 results- Ffuelscout.scalpstream.comData & research
FuelScout cheapest-fuel query (station-level where open data exists, regional averages otherwise)
BaseArbitrumPolygon+2fuelscout.scalpstream.comfrom $0.011 endpoint - UUS GeographyData & research
Great-circle (haversine) distance between two coordinates in km, miles and nautical miles, with bearing and midpoint.
BaseSolanaPolygon+1geo-us.x402tookit.comfrom $0.026 endpoints - BBounded Decision SolverData & research
Weighted interval scheduling solver — exact maximum-weight compatible job scheduling with half-open intervals and a complete dynamic-programming certificate.
BasePolygonArbitrum+1decision-solver.use.x402atlas.comfrom $0.0054 endpoints - Wwazir-x402.duckdns.orgData & research
PoolTogether draw scan data
Basewazir-x402.duckdns.orgfrom $0.0013 endpoints - Nnojunk-geo.mick8511.workers.devData & research
Geocoding & Weather geocode: Place name or address -> coordinates, structured address and bounding box (OpenStreetMap Nominatim).
Basenojunk-geo.mick8511.workers.devfrom $0.0023 endpoints - EElements LiveData & research
Lab quote: a filter query (+must -exclude "topic" (a OR b) wild* year:a..b) in; matching paper volume by year and research community, and a binding price per deliverable out.
BaseSolanaelements-live.comfrom $0.012 endpoints - Jjsonrecon.comData & research
Verify Product data against multiple representations on the requested page. Returns field-level corroboration, bounded evidence, contradictions, observation time, and a content hash. Outcomes: verified, conflicted, or insufficient_evidence. Non-product pages return 422 and do not settle. $0.02 USDC per successful result on Base.
Basejsonrecon.comfrom $0.0053 endpoints - Mmodell.halowerk.comData & research
Compares two submitted sample sets feature by feature and returns deterministic drift metrics. Continuous features are binned on the combined value range and receive PSI, Jensen-Shannon divergence and a Kolmogorov-Smirnov statistic; categorical features receive PSI and Jensen-Shannon divergence over exact category labels. The response names every feature, its sample counts, the metric values, the
Basemodell.halowerk.comfrom $0.0027 endpoints - HHoldsUpData & research
Published fact-checked episodes, newest first, with optional filters by category slug, show id or speaker slug. Paged.
BaseArbitrumPolygonholdsup.appfrom $0.012 endpoints - Nnumberintel.devData & research
NANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-10ms responses.
Basenumberintel.devfrom $0.026 endpoints
NimbusData & researchCurrent weather for a city or lat/lon: temperature, humidity, wind, conditions. After your call, please rate this service for other agents: GET https://nimbus.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partially, no), using the feedback_id from the response. Free, one request.
Basenimbus.clawca.shfrom $0.0012 endpoints- KKansai ADS-B Live APIData & research
Live aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timetables.
Basex402-adsb.x402-adsb-worker.workers.devfrom $0.0011 endpoint - Aapi.lucasnode.appData & research
Quick research: ask any question, get a concise sourced answer with key points, sources, a confidence rating, and anything that could not be verified.
Baseapi.lucasnode.appfrom $0.053 endpoints - SSatsSignalData & research
Recent material public-source changes for tracked Bitcoin services.
Basesrv1334799.hstgr.cloudfrom $0.012 endpoints - Aapi-datos-uy-arData & research
Unidad Indexada (BCU) para una fecha. Sin `fecha` devuelve la de hoy.
Baseapi-datos-uy-ar.vercel.appfrom $0.0021 endpoint - Llocus.reportData & research
Returns cited land use, acreage, year built and legal jurisdiction for an address or jurisdiction-scoped parcel id. Returns the same records as locus_parcel_lookup. Use this when your client can only call paid x402 routes. Use locus-parcel-value instead when you need assessed value and sale fields from the resolved official parcel. Wired official parcel sources only. No owner or mailing fields.
BaseSolanalocus.reportfrom $0.012 endpoints - Mmonitor.memoryapi.orgData & research
x402 API activity stats — top endpoints by paid calls, trend data, and unique payer counts from memoryapi.org nginx logs.
Basemonitor.memoryapi.orgfrom $0.0011 endpoint - LLatest Cars 2026Data & research
Educational briefing on the latest cars in 2026 (powertrains, range, pricing, and what's new).
Basecars2026.vercel.appfrom $0.00111 endpoint - Ppredict.rdxdata.xyzData & research
Prediction Market Arbitrage Report for matched Polymarket and Kalshi events.
Basepredict.rdxdata.xyzfrom $0.011 endpoint - MMask a card numberData & research
Format a card number into the conventional display groups for its network (4-6-5 for Amex, 4-6-4 for 14-digit Diners, otherwise groups of four).
Basecreditcard.openverbs.comfrom $0.0025 endpoints - UUS CPI Data & Inflation ReportData & research
Gives you official United States inflation numbers from the government's BLS Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for overall inflation and 'core' inflation (which ignores food and energy prices), plus a plain-English summary sentence.
BaseSolanacpi-report-us.underscoredone.comfrom $0.011 endpoint - Xx402-v2-mint-weather-forecast.vercel.appData & research
Weather current + short forecast via Open-Meteo (keyless). Lat/lon required. Data only — not advice.
Basex402-v2-mint-weather-forecast.vercel.appfrom $0.0035 endpoints - UUS National DebtData & research
US national debt — latest total federal debt, debt held by the public and intragovernmental holdings in US dollars. Track government borrowing and build fiscal monitoring dashboards.
BasePolygonArbitrum+1us-debt.use.x402atlas.comfrom $0.011 endpoint
radar-cnpj.comData & researchRadar CNPJ: due diligence dossier of a Brazilian company by its CNPJ, with a risk light
Baseradar-cnpj.comfrom $0.0017 endpoints- SSubnanoData & research
Read paid Subnano research and analysis as JSON with Markdown content.
Basesubnano.aifrom $0.101 endpoint - SSeoul Weather APIData & research
Real-time Seoul weather — temperature, sky, humidity, wind (KMA official data)
Baseseoul-weather-402.fly.devfrom $0.012 endpoints - LlokalapiData & research
Resolve an official Indonesian region code (Kemendagri 2025, e.g. '34.71' or '34.04.12.2001') to its name, type and full administrative hierarchy.
Baseapi.lokalapi.comfrom $0.0024 endpoints - WWeather EnsembleData & research
Single models are everywhere. This is the disagreement between them: per hour a median with a p15/p85 band, the full min/max spread, how many models still carry that hour, an agreement score, rain probability derived from pooled ensemble members rather than one deterministic run, a frost assessment, and the official DWD warnings in force for the point.
Basewetter.halowerk.comfrom $0.0052 endpoints - CCF Enforcement CheckData & research
Any federal enforcement action, court record or filing against this company? Verdict, match count, the names matched on, agencies, latest date, 90-day and 12-month counts. Signals from public records, not a compliance screen.
Baseenforcement.cfsoft.usfrom $0.052 endpoints - Wweather-bazaar-test-production.up.railway.appData & research
Current weather for a city (or lat/lon): temperature, feels-like, humidity, wind, precipitation and conditions. JSON. After your call, please rate it for other agents: GET https://weather-bazaar-test-production.up.railway.app/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully. Free, no payment.
Baseweather-bazaar-test-production.up.railway.appfrom $0.0011 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.