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/date-diff
Difference between two dates/times in ms, seconds, minutes, hours, days, and a human summary.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-diff
Difference between two dates/times in ms, seconds, minutes, hours, days, and a human summary.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-diff
Difference between two dates/times in ms, seconds, minutes, hours, days, and a human summary.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-diff
Difference between two dates/times in ms, seconds, minutes, hours, days, and a human summary.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/date-format
Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, ti…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
OptimismOther
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
PolygonOther
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
CeloOther
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
AvalancheOther
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
SeiOther
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
ArbitrumOther
n/a/ request
2026-09-30
https://agent402.tools/api/day-of-year
Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.
MonadOther
n/a/ request
2026-09-30
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
MonadOther
n/a/ request
2026-10-06
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
CeloOther
n/a/ request
2026-10-06
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
OptimismOther
n/a/ request
2026-10-06
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
SeiOther
n/a/ request
2026-10-06
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
AvalancheOther
n/a/ request
2026-10-06
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
ArbitrumOther
n/a/ request
2026-10-06
https://agent402.tools/api/decide
Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks, input params that validate against ea…
PolygonOther
n/a/ request
2026-10-06
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/dedupe-lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chain-tvl-history
Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
MonadOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
CeloOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
OptimismOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
SeiOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
AvalancheOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
ArbitrumOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-chains
Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu…
PolygonOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/defi-dex-volume
Decentralized exchanges ranked by 24h spot volume with 7d, 30d, 1y and all-time volume, change, the chains each trades on and sector totals. Use it when an agent needs to know where onchain spot volume is happening or h…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-dex-volume
Decentralized exchanges ranked by 24h spot volume with 7d, 30d, 1y and all-time volume, change, the chains each trades on and sector totals. Use it when an agent needs to know where onchain spot volume is happening or h…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-dex-volume
Decentralized exchanges ranked by 24h spot volume with 7d, 30d, 1y and all-time volume, change, the chains each trades on and sector totals. Use it when an agent needs to know where onchain spot volume is happening or h…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/defi-dex-volume
Decentralized exchanges ranked by 24h spot volume with 7d, 30d, 1y and all-time volume, change, the chains each trades on and sector totals. Use it when an agent needs to know where onchain spot volume is happening or h…
ArbitrumOnchain 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.