{"slug":"x402-store-dgdb-workers-dev-v1-sign-decode-70972c","title":"Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 a","host":"x402-store.dgdb.workers.dev","method":"POST","resource":"https://x402-store.dgdb.workers.dev/v1/sign-decode","category":"commerce","description":"Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 approve calldata) into a structured intent: what token, which spender, how much, until when, plus risk_flags and an action_hint. Deterministic, no LLM. Answers an agent's question 'what am I about to sign?'","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":726,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"domain":{"chainId":8453,"name":"Permit2","verifyingContract":"0x000000000022D473030F116dDEE9F6B43aC78BA3"},"message":{"details":{"amount":"1461501637330902918203684832716283019655932542975","expiration":"1781176678","nonce":"0","token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"sigDeadline":"1749722278","spender":"0x66a9893cC07D91D95644AEDD05D03f95e1dBA8Af"},"primaryType":"PermitSingle"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"description":"EIP-712 typed data to decode (domain/primaryType/message), or {\"calldata\": \"0x...\"} for raw ERC-20 approve calldata.","properties":{"calldata":{"type":"string"},"domain":{"type":"object"},"message":{"type":"object"},"primaryType":{"type":"string"}},"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":726,"error":null}],"description_full":"Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 approve calldata) into a structured intent: what token, which spender, how much, until when, plus risk_flags and an action_hint. Deterministic, no LLM. Answers an agent's question 'what am I about to sign?'","last_updated":"2026-09-14T19:49:34.81Z","schemes":["exact"]}