x402 merchant

agent402.tools

Name: agent402.tools on x402: dated readings
Creator: Sato Hub
License: https://creativecommons.org/licenses/by/4.0/

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
Categories: 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 · 7d2026-10-08No 402 answer2026-09-19Not claimed

See the readings

Endpoints

4,853 registered

https://agent402.tools/api/tts-hd
Convert text to speech using OpenAI TTS-1-HD (higher fidelity). Returns base64-encoded audio. Same interface as /api/tts but with better audio quality. No API key needed; pay per call via x402. Text capped at 2000 chars.
PolygonAI models
n/a/ request
2026-09-24
https://agent402.tools/api/tts-hd
Convert text to speech using OpenAI TTS-1-HD (higher fidelity). Returns base64-encoded audio. Same interface as /api/tts but with better audio quality. No API key needed; pay per call via x402. Text capped at 2000 chars.
OptimismAI models
n/a/ request
2026-09-24
https://agent402.tools/api/tts-hd
Convert text to speech using OpenAI TTS-1-HD (higher fidelity). Returns base64-encoded audio. Same interface as /api/tts but with better audio quality. No API key needed; pay per call via x402. Text capped at 2000 chars.
AvalancheAI models
n/a/ request
2026-09-24
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
AvalancheAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
CeloAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
OptimismAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
SeiAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
MonadAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
PolygonAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tts-lite
Convert text to speech with Kokoro-82M, ten times cheaper than /api/tts. Returns base64-encoded mp3 or pcm. The same request shape and the same ten OpenAI voice names as /api/tts, mapped to Kokoro's own voices; the voic…
ArbitrumAI models
n/a/ request
2026-10-06
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-receipt
Full receipt for a transaction hash in one call: status, block, from/to, value, gas used vs limit, effective gas price, total fee, tx type, calldata selector, contract created, plus every ERC-20 / ERC-721 / ERC-1155 Tra…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-simulate
Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethe…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
AvalancheOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
PolygonOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
MonadOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
OptimismOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
CeloOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
SeiOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/tx-status
Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-on…
ArbitrumOnchain data
n/a/ request
2026-10-05
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
MonadOther
n/a/ request
2026-10-03
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
AvalancheOther
n/a/ request
2026-10-03
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
ArbitrumOther
n/a/ request
2026-10-03
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
OptimismOther
n/a/ request
2026-10-03
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
PolygonOther
n/a/ request
2026-10-03
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
SeiOther
n/a/ request
2026-10-03
https://agent402.tools/api/ulid
Generate ULIDs (sortable, timestamp-prefixed identifiers).
CeloOther
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
PolygonMarket data
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
SeiMarket data
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
AvalancheMarket data
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
MonadMarket data
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
CeloMarket data
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
OptimismMarket data
n/a/ request
2026-10-03
https://agent402.tools/api/unemployment-rate
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published …
ArbitrumMarket data
n/a/ request
2026-10-03
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…
MonadDeveloper 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…
ArbitrumDeveloper 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…
PolygonDeveloper 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…
SeiDeveloper 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…
AvalancheDeveloper tools
n/a/ request
2026-09-30

Evidence

as of 2026-10-08

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)

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

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	604	0 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)
Arbitrum	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	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	607	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	607	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	607	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	607	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	607	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	607	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 2026-10-08

Highest

$2.00

per request, as registeredas of 2026-10-08

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.