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AgentBIT Keccak-256 Hash
x402
AgentBIT Keccak-256 Hash is a paid API for AI agents from agentbit.app, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-02).
Computes the Keccak-256 cryptographic hash of an input string, returning the hex digest used in Ethereum and other EVM-based systems.
Price / call$0.0015
Success—
StatusUnknown
How this service works
Ethereum Keccak-256 hex digest of input — original Keccak (0x01 padding), not NIST SHA3-256. Used for EVM checksums, event topics and Solidity keccak256.
Output
Returns a JSON object containing the Keccak-256 hex digest (64 hex characters, 32 bytes) of the provided input string, suitable for use in Ethereum smart contracts, EVM tooling, EIP-712 signatures, and other blockchain applications.
Example use cases
Ethereum function selector generation
“Hash the string 'balanceOf(address)' with Keccak-256 so I can get the 4-byte function selector for my smart contract call.”
EIP-712 typed data hashing
“I need the Keccak-256 hash of 'EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)' to build an EIP-712 structured data signature.”
Merkle tree leaf hashing
“Compute the Keccak-256 digest of '0xAbC123...deadbeef:1000000000000000000' so I can use it as a leaf node in my Merkle airdrop tree.”
Technical details
Endpoint
POSThttps://agentbit.app/v1/hash/keccak256?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a Keccak-256 hash (the Ethereum-native variant, not SHA-3) without standing up your own crypto library or managing API keys — ideal for AI agents building EVM transactions, computing function selectors, generating event topic hashes, or creating Merkle tree leaves on a pay-per-call basis.
Side effects
- Missing or empty 'input' field returns a validation error
- Non-string input types may cause a 400 bad request
- Network or payment failure returns a 402 or 5xx error
- Extremely large input strings may time out or be rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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