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 2026-10-07
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 2026-10-07

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/search-suggest

    Search autocomplete: query suggestions for a partial input as a flat JSON array. Useful for query expansion, did-you-mean refinement, and topic exploration. Returns up to 20 suggestions.

    SeiDeveloper tools

    n/a/ request

    2026-10-07

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    SeiMedia

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    PolygonMedia

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    ArbitrumMedia

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    AvalancheMedia

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    OptimismMedia

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    CeloMedia

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/search-videos

    Live video search: ranked video results (title, video page URL, description, duration, creator, publisher, thumbnail, age) from an independent search index as clean JSON. Completes the web/news/images search family. Sam…

    MonadMedia

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    SeiOnchain data

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    ArbitrumOnchain data

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    MonadOnchain data

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    CeloOnchain data

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    AvalancheOnchain data

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    PolygonOnchain data

    n/a/ request

    2026-10-06

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

    Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {foun…

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    ArbitrumOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    CeloOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    OptimismOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    SeiOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    AvalancheOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    MonadOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-dossier

    Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees w…

    PolygonOther

    n/a/ request

    2026-10-08

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    MonadOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    OptimismOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    SeiOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    AvalancheOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    PolygonOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    CeloOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/seller-payability

    Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches th…

    ArbitrumOther

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    OptimismSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    AvalancheSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    ArbitrumSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    MonadSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    PolygonSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    SeiSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/semver

    Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).

    CeloSearch

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    OptimismSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    ArbitrumSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    MonadSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    AvalancheSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    SeiSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    CeloSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/sharpe-ratio

    Risk-adjusted return: (mean return - risk-free rate) / sample standard deviation of returns (n-1). Pass periodsPerYear to also get the annualized ratio (× sqrt(periodsPerYear)).

    PolygonSecurity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    SeiWeb data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    CeloWeb data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    OptimismWeb data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    MonadWeb data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    ArbitrumWeb data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    PolygonWeb data

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/site-crawl

    Crawl a website from a starting URL and return each page as clean markdown: breadth-first over internal links, bounded by page count and depth, honouring robots.txt, with per-page title, status, depth and outbound links…

    AvalancheWeb data

    n/a/ request

    2026-10-06

Evidence

as of 2026-10-07

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 2026-10-07

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 2026-10-07. Appearing here is not an endorsement. Check an endpoint with the doctor.