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finmath Hex Converter
x402
finmath Hex Converter is a paid API for AI agents from finmath.qzqh5rrbkz.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Converts hexadecimal values to/from other formats (decimal, binary, etc.) with exact, deterministic arithmetic
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
A JSON object with a 'result' field containing the converted value (e.g. decimal integer, binary string, or other target format) and a 'meta' object with call metadata such as timing or mode confirmation.
Example use cases
Example prompt
“Convert the hex value 0x1A3F to its decimal equivalent — I need the exact number, no rounding.”
Technical details
Endpoint
POSThttps://finmath.qzqh5rrbkz.workers.dev/v1/hex_convertWhen to prefer
Use this endpoint when you need exact, deterministic hex conversion without relying on LLM arithmetic — particularly for crypto addresses, EVM data, financial hex-encoded values, or any context where rounding or hallucination would be unacceptable. Prefer this over asking an LLM to do mental math on hex.
Side effects
- Invalid hex string input returns an error result
- Missing required 'input' field returns 400-class error
- Unsupported or invalid 'mode' value returns an error
- Non-hex characters in input string cause parsing failure
- Empty string input may return validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | string | mode |
| inputrequired | string | input |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| metarequired | object | |
| resultrequired | — |
Tags
x402
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