Sato Hub
x402 merchant

agent402.tools

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

  • Endpoints4,853
  • Price per requestfrom $0.001
  • Outside payers · 7d99
  • Answer 4020 of 8

Overview

as of 2026-10-08
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 models424Web data296Media272Identity240Search144Agents124Security96Commerce16
First seen
2026-10-05 · last seen 2026-10-08

What we observed

Paid by 99 outside payers · 7d, observedNo 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.
4,853 registered

  • https://agent402.tools/api/unit-convert

    Convert a value between units of length, mass, temperature, volume, area, speed, time, data, pressure, energy, power, angle, frequency - every unit the retired convert-* endpoints handled (e.g. miles, kilometers, kilogr…

    CeloDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unit-convert

    Convert a value between units of length, mass, temperature, volume, area, speed, time, data, pressure, energy, power, angle, frequency - every unit the retired convert-* endpoints handled (e.g. miles, kilometers, kilogr…

    OptimismDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    MonadDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    PolygonDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    ArbitrumDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    CeloDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    OptimismDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    SeiDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/unshorten-url

    Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. C…

    AvalancheDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    PolygonDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    MonadDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    ArbitrumDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    SeiDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    AvalancheDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    CeloDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-code

    Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

    OptimismDeveloper tools

    n/a/ request

    2026-10-03

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    AvalancheDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    CeloDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    ArbitrumDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    PolygonDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    MonadDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    SeiDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/url-parse

    Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

    OptimismDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    SeiOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    AvalancheOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    OptimismOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    CeloOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    MonadOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    ArbitrumOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/usdc-balance

    Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, or Sei. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a wallet ho…

    PolygonOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    SeiDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    OptimismDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    ArbitrumDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    MonadDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    CeloDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    PolygonDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/user-agent

    Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

    AvalancheDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    SeiDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    OptimismDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    ArbitrumDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    MonadDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    CeloDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    PolygonDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid

    UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end …

    AvalancheDeveloper tools

    n/a/ request

    2026-10-05

  • https://agent402.tools/api/uuid-validate

    Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

    MonadDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/uuid-validate

    Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

    CeloDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/uuid-validate

    Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

    PolygonDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/uuid-validate

    Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

    ArbitrumDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/uuid-validate

    Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

    AvalancheDeveloper tools

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/uuid-validate

    Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

    SeiDeveloper tools

    n/a/ request

    2026-09-30

Evidence

as of 2026-10-08

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.

99outside payers

2801 x402-style payments from 99 distinct payers, $52.07 USDC in the last 7 days (Base, exact read)

window ended 2026-10-08

Payments
2,801
Payers
99
USDC
52.07

All USDC received at this payout address: $52.08 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-08, every block of the window: 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; Sato Hub's own payer wallets are left out

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06040 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
2801 x402-style payments from 99 distinct payers, $52.07 USDC in the last 7 days (Base, exact read)
Arbitrum0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Avalanche0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Celo0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Monad0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Optimism0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Polygon0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Sei0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06070 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 2026-10-08. Appearing here is not an endorsement. Check an endpoint with the doctor.