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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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4,273 results- Xx402-v2-mint-nhl-standings.vercel.appOther services
NHL standings now (keyless). POST {conference?, division?, team?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. MUST trim/project upstream (~58KB). Sports lane.
Basex402-v2-mint-nhl-standings.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-nhc-current.vercel.appData & research
NHC active tropical storms JSON (keyless). POST {} or {basin?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: gdacs-events / nws-alerts-lookup / weather-forecast (≠ those products).
Basex402-v2-mint-nhc-current.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-news-brief.vercel.appSearch & web
News brief with sources (GDELT headlines+links only). No article body republish. No charge on empty/failed.
Basex402-v2-mint-news-brief.vercel.appfrom $0.011 endpoint - Xx402-v2-mint-nasa-sbdb-lookup.vercel.appOther services
JPL SBDB small-body lookup (keyless; ≠ DEMO_KEY neo). POST {sstr}/{des?}. Empty -> 400 not charged. launch-library/nasa-techport adjacency disclosed.
Basex402-v2-mint-nasa-sbdb-lookup.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-nasa-power-point.vercel.appData & research
NASA POWER daily point climate/solar (keyless). POST {latitude}/{longitude}/{start}/{end} (+ optional parameters/community/format). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: swpc-space-weather / climate-trace-emissions (space weather / GHG ≠ POWER point meteorology).
Basex402-v2-mint-nasa-power-point.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-nasa-exoplanet-archive.vercel.appOther services
NASA Exoplanet Archive TAP (keyless). POST {query?}/{pl_name?}/{hostname?}/{limit?}. Empty -> 400 not charged. nasa-sbdb/launch-library/nasa-techport adjacency disclosed.
Basex402-v2-mint-nasa-exoplanet-archive.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-mygene-gene-lookup.vercel.appOther services
MyGene.info gene lookup (keyless). POST {q|query}/{species?}/{fields?}/{size?}. Empty -> 400 not charged.
Basex402-v2-mint-mygene-gene-lookup.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-monarch-search.vercel.appCrypto & DeFi
Monarch Initiative search (keyless; OLS-adjacent caution). POST {q|query}/{limit?}. Empty -> 400 not charged. Board W45 swap for hpo.
Basex402-v2-mint-monarch-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-moco-property-check.vercel.appAI & agents
Montgomery County MD housing license + active violations (partner wrap of x402-mcp). Refund if partner fails after settle.
Basex402-v2-mint-moco-property-check.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-mn-property-check.vercel.appAI & agents
Minneapolis rental-license / housing compliance check (partner wrap of x402-mcp). Refund if partner fails after settle.
Basex402-v2-mint-mn-property-check.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-metmuseum-collection-search.vercel.appSearch & web
Met Museum collection search v1.1 (keyless). POST {q|query}/{hasImages?}/{limit?}. Empty -> 400 not charged.
Basex402-v2-mint-metmuseum-collection-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-medrxiv-details.vercel.appOther services
medRxiv preprint details by date (keyless). POST {server?}/{from}/{to}/{cursor?}. Empty -> 400 not charged. Distinct med-preprint lane — disclose biorxiv/europepmc adjacency.
Basex402-v2-mint-medrxiv-details.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-mealdb-search.vercel.appCrypto & DeFi
TheMealDB recipe/meal search (keyless). POST {s|q|name}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. New meal/recipe lane; cocktail-search soft swap only (do not mint cocktail).
Basex402-v2-mint-mealdb-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-mbta-stops.vercel.appCrypto & DeFi
MBTA stops search (keyless, Boston/US-scoped). POST {q|query|filter?}. Empty -> 400 not charged. Adjacent to mbta-routes. Board W44 swap for openalex-sources.
Basex402-v2-mint-mbta-stops.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-mbta-routes.vercel.appOther services
MBTA routes (keyless, Boston/US-scoped). POST {q?|type?|route?}. Empty -> 400 not charged.
Basex402-v2-mint-mbta-routes.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-macrostrat-geologic.vercel.appMarkets & finance
Macrostrat geologic defs/structures (keyless). POST {endpoint?} (+ optional limit/structure_type/all). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. New geoscience vertical; no catalog adjacency.
Basex402-v2-mint-macrostrat-geologic.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-loc-search.vercel.appCrypto & DeFi
Library of Congress search fo=json (keyless). POST {q} and/or {c?}. Empty → 404 not charged. Board SWAP vs europeana-search.
Basex402-v2-mint-loc-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-lobsters-hottest.vercel.appSearch & web
Lobste.rs hottest.json tech-news feed (keyless). POST {limit?, tag?} (limit default 15 max 25). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose hn-stories / bluesky-public-did.
Basex402-v2-mint-lobsters-hottest.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-lichess-user.vercel.appSocial & people
Lichess public user profile/ratings (keyless). POST {username|user|name}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. New chess lane.
Basex402-v2-mint-lichess-user.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-lax-property-check.vercel.appAI & agents
LA Building & Safety open code-enforcement cases (partner wrap of x402-mcp). Refund if partner fails after settle.
Basex402-v2-mint-lax-property-check.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-launch-library-upcoming.vercel.appSearch & web
Launch Library 2 upcoming launches (keyless). POST {limit?} and/or {search?}/{lsp_id?}. Empty → 404 not charged.
Basex402-v2-mint-launch-library-upcoming.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-kitsu-anime-search.vercel.appSearch & web
Kitsu anime search (keyless JSON:API). POST {q|text|query} required; limit max 10. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose tvmaze-search (media). Jikan rejected (do not mint).
Basex402-v2-mint-kitsu-anime-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-kegg-compound-lookup.vercel.appOther services
KEGG compound find (keyless). POST {query|q}. Empty → 400 not charged.
Basex402-v2-mint-kegg-compound-lookup.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-kc-property-check.vercel.appAI & agents
Kansas City open exterior building violations (partner wrap of x402-mcp). Refund if partner fails after settle.
Basex402-v2-mint-kc-property-check.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-jpl-horizons.vercel.appData & research
NASA/JPL Horizons ephemeris/physical (keyless). POST {command} (+ optional obj_data/make_ephem/ephem_type/center/start_time/stop_time/step_size/format). Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Light adjacency: swpc-space-weather (space weather ≠ Horizons ephemeris).
Basex402-v2-mint-jpl-horizons.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-jolpica-f1-standings.vercel.appOther services
Jolpica/Ergast-style F1 driver standings (keyless). POST {season?, round?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. New motorsport lane.
Basex402-v2-mint-jolpica-f1-standings.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-itis-taxonomy-search.vercel.appSearch & web
ITIS US scientific-name taxonomy search (keyless, US-scoped). POST {q|name|scientificname}. Empty -> 400 not charged.
Basex402-v2-mint-itis-taxonomy-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-interpro-entry-search.vercel.appSearch & web
InterPro protein-domain entry search (keyless). POST {q|search}/{page_size?}. Empty -> 400 not charged. UniProt/PDBe adjacency disclosed.
Basex402-v2-mint-interpro-entry-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-internet-archive-search.vercel.appSearch & web
Internet Archive advancedsearch (keyless). POST {q|query}/{rows?}. Empty -> 400 not charged.
Basex402-v2-mint-internet-archive-search.vercel.appfrom $0.021 endpoint - Xx402-v2-mint-inspirehep-literature.vercel.appSearch & web
INSPIRE-HEP literature search (keyless). POST {q|query} with optional {size?}. Empty → 400 not charged.
Basex402-v2-mint-inspirehep-literature.vercel.appfrom $0.021 endpoint
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