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finmath Keccak256 Hash
x402
finmath Keccak256 Hash is a paid API for AI agents from finmath.qzqh5rrbkz.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Computes the Keccak-256 cryptographic hash of an input string, as used in Ethereum and other EVM-compatible blockchains.
Price / call$0.001
Success—
StatusUnknown
How this service works
Deterministic finance and crypto math for AI agents: TradFi (NPV, IRR, XIRR, Black-Scholes + Greeks, bonds, VaR, Sharpe) and DeFi (impermanent loss, perp liquidation, funding, Uniswap v3, health factor, cost basis). Exact, model-free arithmetic that LLMs get wrong — priced per call in USDC.
Output
Returns a JSON object with a 'result' field containing the keccak256 hash (typically as a hex string) of the provided input, along with a 'meta' object with call metadata.
Example use cases
Example prompt
“Compute the Keccak-256 hash of the string 'Transfer(address,address,uint256)' so I can get the Ethereum event topic hash.”
Technical details
Endpoint
POSThttps://finmath.qzqh5rrbkz.workers.dev/v1/keccak256When to prefer
Use this endpoint when you need a deterministic, exact Keccak-256 hash — especially for Ethereum ABI signatures, event topics, or any EVM-compatible hashing — without relying on an LLM's error-prone arithmetic or a local crypto library.
Side effects
- Missing required 'input' field returns validation error
- Invalid encoding value may cause a processing error
- Empty string input may return the keccak256 of empty bytes
- Network timeout from Cloudflare Worker edge
Input
{
"input": "Transfer(address,address,uint256)"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | input |
| encoding | string | encoding |
Output
{
"meta": {
"tool": "keccak256",
"disclaimer": "Deterministic calculation utility. Not financial, investment, or trading advice.",
"deterministic": true
},
"result": {
"hash": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
}
}Schema · Response
| Field | Type | Description |
|---|---|---|
| metarequired | object | |
| resultrequired | — |
Tags
x402
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