{"slug":"chain-openverbs-com-v1-explain-a73a76","title":"Decode a transaction into plain language","host":"chain.openverbs.com","method":"POST","resource":"https://chain.openverbs.com/v1/explain","category":"market","description":"Decode a transaction into plain language: native ETH transfer, contract call (with decoded method name for common ERC-20/DEX functions like transfer, approve, swap, mint, multicall) or contract creation; ERC-20 and NFT (ERC-721) transfers it triggered (token, from, to, amount/tokenId from logs); gas","price_listed":0.006,"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":4,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"chain":{"description":"EVM chain to query. One of: ethereum, base, arbitrum, optimism, polygon. Default \"ethereum\".","enum":["ethereum","base","arbitrum","optimism","polygon"],"type":"string"},"hash":{"description":"32-byte transaction hash.","pattern":"^0x[0-9a-fA-F]{64}$","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"}},"required":["input"],"type":"object"},"history":[],"description_full":"Decode a transaction into plain language: native ETH transfer, contract call (with decoded method name for common ERC-20/DEX functions like transfer, approve, swap, mint, multicall) or contract creation; ERC-20 and NFT (ERC-721) transfers it triggered (token, from, to, amount/tokenId from logs); gas spent in ETH; success/failed/pending; and a one-line summary. Reads live on-chain data with automatic endpoint fallback.","last_updated":"2026-09-20T08:38:18.753Z","schemes":["exact"]}