{"slug":"api-jagent-dev-v1-tx-check-05f888","title":"Pre-sign safety check for EVM calldata, offline and rule-based","host":"api.jagent.dev","method":"POST","resource":"https://api.jagent.dev/v1/tx-check","category":"market","description":"Pre-sign safety check for EVM calldata, offline and rule-based. JSON body: calldata (hex), optional signature, to (address), value_wei (decimal string). Flags unlimited or partial token approvals, approval-for-all, permit, ownership changes, unknown functions and attached value. Returns risk (low/me","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":155,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"calldata":"0x095ea7b3000000000000000000000000d8da6bf26964af9d7eed9e03e53415d37aa96045ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{}},"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":"2026-09-28","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":155,"error":null}],"description_full":"Pre-sign safety check for EVM calldata, offline and rule-based. JSON body: calldata (hex), optional signature, to (address), value_wei (decimal string). Flags unlimited or partial token approvals, approval-for-all, permit, ownership changes, unknown functions and attached value. Returns risk (low/medium/high), a plain summary, flags and the decoded call. No chain lookups; nothing stored. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.","last_updated":"2026-09-28T15:54:34.303Z","schemes":["exact"]}