Sato Hub
x402 merchant

agent402.tools

Developer tools API on Base, Arbitrum, Avalanche, Celo, Monad, Optimism, Polygon and Sei, paid per request with x402.

  • Endpoints4,845
  • Price per requestfrom $0.001
  • Outside payers · 7dn/a
  • Answer 4020 of 8

Overview

as of 2026-10-06
Seller wallet
0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
Chains
BaseArbitrumAvalancheCeloMonadOptimismPolygonSei
Hosts
agent402.tools
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools1,088Market data872Onchain data704Other577AI models416Web data296Media272Identity240Search144Agents124Security96Commerce16
First seen
2026-10-05 · last seen 2026-10-06

What we observed

Payments unknown, unknownNo 402 answer, not observedNot claimed
See the readings

Endpoints

EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
4,845 registered

  • https://agent402.tools/api/gcd-lcm

    Greatest common divisor and least common multiple of two or more integers, computed exactly (arbitrary precision). Useful for cycle alignment, scheduling periods and fraction work. Signs are ignored; a zero makes the LC…

    CeloOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/gcd-lcm

    Greatest common divisor and least common multiple of two or more integers, computed exactly (arbitrary precision). Useful for cycle alignment, scheduling periods and fraction work. Signs are ignored; a zero makes the LC…

    ArbitrumOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/gcd-lcm

    Greatest common divisor and least common multiple of two or more integers, computed exactly (arbitrary precision). Useful for cycle alignment, scheduling periods and fraction work. Signs are ignored; a zero makes the LC…

    MonadOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/gcd-lcm

    Greatest common divisor and least common multiple of two or more integers, computed exactly (arbitrary precision). Useful for cycle alignment, scheduling periods and fraction work. Signs are ignored; a zero makes the LC…

    AvalancheOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    CeloOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    OptimismOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    SeiOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    AvalancheOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    MonadOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    ArbitrumOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-distance

    Great-circle distance between two latitude/longitude points using the haversine formula. Returns kilometers and miles. Deterministic.

    PolygonOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    CeloOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    OptimismOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    SeiOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    AvalancheOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    MonadOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    ArbitrumOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geo-lookup

    Resolve a US latitude/longitude to its county, state and census block FIPS codes via the US Census Bureau geocoder. Use it when an agent has coordinates and needs the administrative geography (jurisdiction, county, cens…

    PolygonOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    AvalancheOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    CeloOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    OptimismOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    SeiOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    MonadOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    ArbitrumOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key.

    PolygonOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    MonadDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    SeiDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    PolygonDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    ArbitrumDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    AvalancheDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    OptimismDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/github-repo

    Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, created/last-push timestamps, default branch, archived/fork fla…

    CeloDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    OptimismOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    CeloOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    PolygonOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    ArbitrumOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    MonadOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    AvalancheOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/global-defi

    Global DeFi snapshot: DeFi market cap (USD), ETH market cap, DeFi-to-ETH ratio, 24h DeFi trading volume, DeFi dominance % of the whole crypto market, and the top DeFi coin with its share of DeFi. The DeFi companion of c…

    SeiOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    ArbitrumOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    SeiOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    AvalancheOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    OptimismOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    PolygonOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    CeloOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data.

    MonadOther

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gravatar-check

    Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU - the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (dis…

    MonadIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gravatar-check

    Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU - the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (dis…

    CeloIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gravatar-check

    Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU - the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (dis…

    AvalancheIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/gravatar-check

    Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU - the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (dis…

    SeiIdentity

    n/a/ request

    2026-09-30

Evidence

as of 2026-10-06

Answers HTTP 402

Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

0 of 8

0 of 8 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-09-19

x402-style payments, last 7 days (Base)

x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.

unknown

unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)

window ended 2026-10-06

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06030 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
Arbitrum0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Avalanche0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Celo0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Monad0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Optimism0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Polygon0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Sei0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Pricing

Lowest
$0.001
per request, as registeredas of
Highest
$2.00
per request, as registeredas of

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.

Claim this merchant

Sign a message from the payout address 0xabf4fa…e2a9d0 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-06. Appearing here is not an endorsement. Check an endpoint with the doctor.