# finmath SHA-512 Hash

> finmath SHA-512 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 2026-10-19).

Computes the SHA-512 cryptographic hash of a given input string

## Facts

- Endpoint: POST https://finmath.qzqh5rrbkz.workers.dev/v1/sha512?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/finmath-sha-512-hash-80042f08
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xuO11nID60seRtAdGvZdl

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability finmath-sha-512-hash-80042f08 -d '<json body>'
```

Example prompt: Can you compute the SHA-512 hash of the string 'Hello, World!' for me?

## When to prefer this

Use this endpoint when you need a deterministic, exact SHA-512 cryptographic hash computed server-side — especially useful when the LLM itself may produce incorrect or inconsistent hash values. Prefer this over asking an LLM to hash data directly, since LLMs are unreliable at exact cryptographic arithmetic.

## Known failure modes

- Missing required 'input' field returns validation error
- Empty string input may return hash of empty string
- Oversized input may be rejected
- Network timeout on Cloudflare Workers edge

## 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 result object containing the SHA-512 hash (hex digest) of the provided input string, along with a meta object containing call metadata.

## Example request

```json
{
 "input": "Hello, World!"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "input"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "result",
  "meta"
 ],
 "properties": {
  "meta": {
   "type": "object"
  },
  "result": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/finmath-sha-512-hash-80042f08/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from finmath.qzqh5rrbkz.workers.dev](https://www.zero.xyz/host/finmath.qzqh5rrbkz.workers.dev/llms.txt)