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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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Data & research
25 results- Aapi.locus.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.
BaseSolanaEthereum+10api.locus.reportfrom $0.0159 endpoints - SSiteCheck Trade & EnergyData & research
Monthly Australian thermal coal reference price in USD per metric ton (World Bank series PCOALAUUSDM, via FRED). Not the Newcastle FOB spot index or Richards Bay prices; the route name is kept for the owner. Latest value plus up to 24 months of history.
BaseSolanaEVM chain 5042+9api.tradeenergy-api.workers.devfrom $0.002111 endpoints - Iip402.xyzData & research
Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.
BasePolygonArbitrum+2ip402.xyzfrom $0.011 endpoint - SSite ClimateData & research
Elevation at a location and what it does: air pressure, boiling point of water, air density and oxygen versus sea level.
BaseSolanaPolygon+1site-climate.x402tookit.comfrom $0.029 endpoints - MMath and StatisticsData & research
A/B conversion test: rates, relative lift, two-proportion z-test p-value, confidence interval and a significance verdict.
BaseSolanaPolygon+1math-stats.x402tookit.comfrom $0.0210 endpoints - IIdentifier ValidatorsData & research
Validate a 9-character CUSIP security identifier check digit and split issuer and issue codes.
BaseSolanaPolygon+1id-validators.x402tookit.comfrom $0.029 endpoints - SSecurity MathData & research
Birthday-problem collision odds for random IDs or hash outputs, or the count of items that reaches a target probability.
BaseSolanaPolygon+1security-math.x402tookit.comfrom $0.028 endpoints - CColor and Design ToolsData & research
Best text color (black or white) for a background hex color, with contrast ratios and WCAG AA/AAA results for both.
BaseSolanaPolygon+1color-design.x402tookit.comfrom $0.028 endpoints - AAviation WeatherData & research
Airport weather now and ahead in one call: current flight category, worst forecast category, wind and trend.
BaseSolanaPolygon+1aviation-weather.x402tookit.comfrom $0.028 endpoints - SSpace Weather IntelligenceData & research
Current space-weather conditions — normalized NOAA SWPC Kp, solar wind, magnetic field, and X-ray flux used for solar-flare monitoring, with observation times and freshness.
BasePolygonArbitrum+1space-weather.use.x402atlas.comfrom $0.0053 endpoints - SStatistical TestsData & research
Adjust p-values for multiple testing (Bonferroni, Sidak, Holm, Benjamini-Hochberg) and see which tests survive.
BaseSolanaPolygon+1stats-tests.x402tookit.comfrom $0.027 endpoints - 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 - 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 - LLocale and Formatting ToolsData & research
Format an amount as money for an ISO 4217 currency code in a locale; reports minor-unit digits; unknown codes rejected.
BaseSolanaPolygon+1locale-tools.x402tookit.comfrom $0.028 endpoints - FFDA Drug LabelData & research
FDA drug label lookup — the newest prescribing information for a brand or generic drug name: boxed warning, indications, dosage, contraindications, warnings, adverse reactions and drug interactions as previews or one section in full, plus manufacturer, route, RxNorm, UNII and application numbers. Use to read what a drug is approved for and its official warnings.
BasePolygonArbitrum+1fda-drugs.use.x402atlas.comfrom $0.013 endpoints - IInternational Address FormatsData & research
A country's postal address layout: line order template, required fields, uppercase rules and field labels.
BaseSolanaPolygon+1address-formats.x402tookit.comfrom $0.028 endpoints - CClassic Ciphers and EncodingsData & research
Grade 1 Braille text to Unicode Braille cells and back, with number sign, capital sign and dot numbers per cell.
BaseSolanaPolygon+1text-ciphers.x402tookit.comfrom $0.024 endpoints - UUK Open DataData & research
Official UK bank holidays for England and Wales, Scotland or Northern Ireland in a given year, with weekdays, from GOV.UK.
BaseSolanaPolygon+1uk-open-data.x402tookit.comfrom $0.026 endpoints - SSatellite CatalogData & research
Screen a CelesTrak group for low-perigee objects (default under 250 km). A heuristic flag, not a re-entry prediction.
BaseSolanaPolygon+1satellite-catalog.x402tookit.comfrom $0.023 endpoints - PPhone Number ToolsData & research
Look up which regions use a country calling code (+44, +1) or a region's code, dialing prefixes and national prefix.
BaseSolanaPolygon+1phone-tools.x402tookit.comfrom $0.025 endpoints - BBulk ExportsData & research
USGS earthquakes in a date window (up to 31 days) above a minimum magnitude: time, magnitude, place, lat/lon, depth.
BaseSolanaPolygon+1bulk-exports.x402tookit.comfrom $0.504 endpoints - GGlobal WeatherData & research
Dew point from air temperature and relative humidity in C and F, with a human comfort class and condensation hint.
BaseSolanaPolygon+1weather-global.x402tookit.comfrom $0.021 endpoint - SSpace WeatherData & research
Active sunspot regions on the Sun now: count, complex magnetic types that can flare, and recent flare counts.
BaseSolanaPolygon+1space-weather.x402tookit.comfrom $0.021 endpoint - Aapi.datanexusai.orgData & research
Eurostat Comext trade facts (value and quantity).
BasePolygonArbitrumapi.datanexusai.orgfrom $0.013 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.