{"slug":"api-sitecheck-api-workers-dev-api-evm-simulate-0dd2e6","title":"Simulates an EVM transaction execution without broadcasting","host":"api.sitecheck-api.workers.dev","method":"POST","resource":"https://api.sitecheck-api.workers.dev/api/evm/simulate","category":"code","description":"Simulates an EVM transaction execution without broadcasting: { chain, from, to, data, value }. Returns eth_call output, gas estimate, success/revert status with decoded revert reason (Error(string), Panic(uint256)), and token balance if to is an ERC-20. State overrides not supported by public RPCs. ","price_listed":0.003,"price_asked":0.003,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":560,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:5042","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"chain":"ethereum","data":"0x70a082310000000000000000000000000000000000000000000000000000000000000000","from":"0x0000000000000000000000000000000000000000","to":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"chain":{"description":"Target EVM chain name (e.g. ethereum, base, arbitrum)","type":"string"},"data":{"description":"Transaction calldata in 0x hex format","type":"string"},"from":{"description":"Sender 42-character 0x hex address","type":"string"},"to":{"description":"Target contract 42-character 0x hex address","type":"string"},"value":{"description":"Optional value in wei (hex or decimal string)","type":"string"}},"required":["chain","to"]},"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":"2026-10-18","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.003,"price_match":true,"latency_ms":560,"error":null}],"description_full":"Simulates an EVM transaction execution without broadcasting: { chain, from, to, data, value }. Returns eth_call output, gas estimate, success/revert status with decoded revert reason (Error(string), Panic(uint256)), and token balance if to is an ERC-20. State overrides not supported by public RPCs. Information only, not financial advice.","last_updated":"2026-10-16T06:54:20.006Z","schemes":["exact"]}