Evm Selector Decode
evm_selector_decodeRead-onlyIdempotent
Decode EVM function selectors, calldata and event topics: looks up 4-byte selectors (or 32-byte event topics) in 4byte.directory plus a built-in table of well-known signatures, re-hashes every candidate with Keccak-256 to drop bad entries, and for full calldata ABI-decodes the arguments (address with EIP-55 checksum, uint/int as exact decimal strings, bool, bytes, string, arrays, tuples), ranking candidates that decode cleanly first. Also computes the selector/topic for a given signature. Price: $0.005 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/evm-selector-decode
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Max candidates 1-50 (default 10) | |
| topic | No | 32-byte event topic0 hash | |
| calldata | No | Full transaction input data (0x...), decoded against the candidates | |
| selector | No | 4-byte function selector, e.g. 0xa9059cbb | |
| signature | No | A signature like transfer(address,uint256) to hash into its selector/topic |