{"slug":"agenttools-hub-vercel-app-api-v1-crypto-tx-explain-966116","title":"Explain what an EVM transaction would actually do","host":"agenttools-hub.vercel.app","method":"GET","resource":"https://agenttools-hub.vercel.app/api/v1/crypto/tx-explain","category":"market","description":"Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4byte directory) and simulates the call against live chain state to report the outcome — including unlimited-approval warnings — without sending anything. Use","price_listed":0.005,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":3,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"chain":"base","data":"0xa9059cbb000000000000000000000000d8dA6BF26964aF9D7eEd9e03E53415D37aA960450000000000000000000000000000000000000000000000000000000000002710","to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"chain":{"description":"Chain","enum":["base","ethereum"],"type":"string"},"data":{"description":"Calldata (0x hex)","type":"string"},"to":{"description":"To address","type":"string"},"value":{"description":"Value (wei, optional)","type":"string"}},"required":["to","data"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4byte directory) and simulates the call against live chain state to report the outcome — including unlimited-approval warnings — without sending anything. Use this when an agent needs to decode and simulate a transaction — before signing it.","last_updated":"2026-10-02T00:12:32.407Z","schemes":["exact"]}