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quartermaster.surewhynot.app v1 tx-decode
https://quartermaster.surewhynot.app/v1/tx-decode
payable
Decode a Base transaction's calldata into a human-readable function call and arguments — ERC-20 transfer/approve and the EIP-3009 transferWithAuthorization used by x402 settlements. Recognizes x402 settlement transactions.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.003
- Network
- base
- Pay to
- 0x5253666c40432f009ebd99908b9cd2a7fd1019cb
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 6 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-10T09:12:05.018Z (3d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fquartermaster.surewhynot.app%2Fv1%2Ftx-decode"