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agent402.co.uk validate eth-address
https://agent402.co.uk/v1/validate/eth-address
answers 402
Agent402. Ethereum address EIP-55 checksum validate + normalize. $0.001 pure — not balance/ENS.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0x9EF92b278a3867C429751390EC427736eB4BABB2
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 126 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:26:59.777Z (1h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.co.uk%2Fv1%2Fvalidate%2Feth-address"