{"slug":"tanod-dev-v1-chain-estimate-gas-7c8c83","title":"chainpeek (Tanod) gas estimate (eth_estimateGas) for a transaction on Ethereum o","host":"tanod.dev","method":"POST","resource":"https://tanod.dev/v1/chain/estimate-gas","category":"market","description":"chainpeek (Tanod) gas estimate (eth_estimateGas) for a transaction on Ethereum or Base. Use when an agent must know how much gas a transaction needs before signing and sending it.","price_listed":0.002,"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":2,"reported_payers_30d":2,"networks":["eip155:137","eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"chain":"base","data":"0x18160ddd","from":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"chain":{"description":"ethereum or base.","enum":["ethereum","base"],"type":"string"},"data":{"anyOf":[{"maxLength":16386,"pattern":"^0x([0-9a-fA-F]{2})*$","type":"string"},{"type":"null"}],"default":null,"description":"Calldata, 0x-hex with an even number of digits, at most 8 kB."},"from":{"anyOf":[{"pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},{"type":"null"}],"default":null,"description":"Sender (affects balance and allowance checks)."},"to":{"anyOf":[{"pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},{"type":"null"}],"default":null,"description":"Recipient. Omit with `data` to estimate a contract creation."},"value_wei":{"anyOf":[{"pattern":"^(0|[1-9][0-9]{0,77}|0x[0-9a-fA-F]{1,64})$","type":"string"},{"type":"null"}],"default":null,"description":"Native value in wei, as a decimal or 0x-hex string."}},"required":["chain"],"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":{"properties":{"chain":{"type":"string"},"contract_creation":{"type":"boolean"},"from":{"type":["string","null"]},"gas":{"type":"integer"},"gas_with_20pct_buffer":{"type":"integer"},"note":{"type":"string"},"to":{"type":["string","null"]}},"required":["chain","gas","gas_with_20pct_buffer","contract_creation"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"chainpeek (Tanod) gas estimate (eth_estimateGas) for a transaction on Ethereum or Base. Use when an agent must know how much gas a transaction needs before signing and sending it.","last_updated":"2026-10-09T21:01:30.645Z","schemes":["exact"]}