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/uuid-validate
Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
ArbitrumOther
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
MonadOther
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
CeloOther
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
PolygonOther
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
OptimismOther
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
AvalancheOther
n/a/ request
2026-09-30
https://agent402.tools/api/vehicle-recalls
NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key.
SeiOther
n/a/ request
2026-09-30
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
PolygonOther
n/a/ request
2026-10-08
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
ArbitrumOther
n/a/ request
2026-10-08
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
SeiOther
n/a/ request
2026-10-08
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
MonadOther
n/a/ request
2026-10-08
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
OptimismOther
n/a/ request
2026-10-08
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
CeloOther
n/a/ request
2026-10-08
https://agent402.tools/api/vin-decode
Decode a vehicle VIN via the US NHTSA vPIC database: make, model, year, trim, body class, engine, fuel type, plant and vehicle type. Accepts full or partial VINs. Use it when an agent holds a VIN and needs the vehicle's…
AvalancheOther
n/a/ request
2026-10-08
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balance
Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-balances
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, so…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
ArbitrumOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
AvalancheOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
OptimismOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
CeloOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
PolygonOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
MonadOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/wallet-transactions
Return the most recent asset transfers (incoming + outgoing) for a wallet address - native coin, ERC-20, ERC-721, ERC-1155 - already merged and sorted newest first. Each row carries the block, tx hash, counterparty, ass…
SeiOnchain data
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
OptimismOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
MonadOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
AvalancheOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
PolygonOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
ArbitrumOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
SeiOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-air-quality
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
CeloOther
n/a/ request
2026-09-30
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
ArbitrumOther
n/a/ request
2026-10-06
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
AvalancheOther
n/a/ request
2026-10-06
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
PolygonOther
n/a/ request
2026-10-06
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
SeiOther
n/a/ request
2026-10-06
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
OptimismOther
n/a/ request
2026-10-06
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
MonadOther
n/a/ request
2026-10-06
https://agent402.tools/api/weather-alerts
Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.
CeloOther
n/a/ request
2026-10-06

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.