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
Categories: Developer tools1,088Market data872Onchain data704Other577AI models416Web data296Media272Identity240Search144Agents124Security96Commerce16
First seen: 2026-10-05 · last seen 2026-10-06

What we observed

Payments unknownNo 402 answer2026-09-19Not claimed

See the readings

Endpoints

4,845 registered

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
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/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gunzip
Decompress a base64-encoded gzip payload. Returns the result as utf8 (text) or base64 (binary). Refuses to expand past 10MB to defend against zip bombs.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/gzip
Compress a string with gzip (RFC 1952) and return it as base64. Reports input bytes, output bytes, and the compression ratio so you can decide if it was worth doing. Input can be plain text (utf8) or already-binary cont…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
CeloDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
OptimismDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
SeiDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
AvalancheDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
MonadDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
ArbitrumDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hash
Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.
PolygonDeveloper tools
n/a/ request
2026-10-06
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hex
Hex encode or decode text. mode: encode (default) or decode.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/hmac
HMAC signature of a message with a shared key. Algorithms: sha256 (default), sha512, sha1. Returns hex and base64.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/html-links
Enumerate every <a href> in an HTML string with its anchor text and rel attribute. Optionally resolves relative hrefs against a base URL and filters by a regex on the href. The deterministic way to crawl a page's outlin…
CeloWeb data
n/a/ request
2026-09-30
https://agent402.tools/api/html-links
Enumerate every <a href> in an HTML string with its anchor text and rel attribute. Optionally resolves relative hrefs against a base URL and filters by a regex on the href. The deterministic way to crawl a page's outlin…
OptimismWeb data
n/a/ request
2026-09-30
https://agent402.tools/api/html-links
Enumerate every <a href> in an HTML string with its anchor text and rel attribute. Optionally resolves relative hrefs against a base URL and filters by a regex on the href. The deterministic way to crawl a page's outlin…
SeiWeb data
n/a/ request
2026-09-30
https://agent402.tools/api/html-links
Enumerate every <a href> in an HTML string with its anchor text and rel attribute. Optionally resolves relative hrefs against a base URL and filters by a regex on the href. The deterministic way to crawl a page's outlin…
AvalancheWeb data
n/a/ request
2026-09-30
https://agent402.tools/api/html-links
Enumerate every <a href> in an HTML string with its anchor text and rel attribute. Optionally resolves relative hrefs against a base URL and filters by a regex on the href. The deterministic way to crawl a page's outlin…
MonadWeb data
n/a/ request
2026-09-30

Evidence

as of 2026-10-06

Answers HTTP 402

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)

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

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	603	0 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)
Arbitrum	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Avalanche	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Celo	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Monad	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Optimism	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Polygon	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Sei	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	606	0 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 2026-10-06

Highest

$2.00

per request, as registeredas of 2026-10-06

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.