# AI Rook Hash — SHA-256 String Hashing

> AI Rook Hash — SHA-256 String Hashing is a paid API for AI agents from agents.ai-rook.com, paid per call via x402, $0.0005/call, status unknown (last checked 2026-09-14).

Computes a SHA-256 hash of a given input string and returns the hex digest, hash length, and algorithm used

## Facts

- Endpoint: GET https://agents.ai-rook.com/api/hash
- Price: $0.0005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ai-rook-hash-sha-256-string-hashing-fdc6d49e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yaJlnIPibyeewJ31jLE6V

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 ai-rook-hash-sha-256-string-hashing-fdc6d49e
```

Example prompt: Can you compute the SHA-256 hash of the string 'hello world' and give me the hex digest?

## When to prefer this

Use this endpoint when you need a pay-per-call, no-signup SHA-256 hashing utility on the x402 micropayment protocol, especially within an agentic workflow already using AI Rook's platform or Base/USDC payments

## Known failure modes

- Missing or empty input parameter returns an error
- Network timeout or service unavailability
- Payment failure via x402/USDC on Base if wallet is underfunded

## How this service works

Live crypto trading intelligence for AI agents — real-time BTC signals, CVD, order flow, and active strategy setups, no API keys or signup. 43 pay-per-call endpoints total: trading data, AI inference (MiniMax M2.7 (456B-parameter Mixture-of-Experts)), web utilities, verification, and ERC-8183 ACP escrow with on-chain ERC-8004 reputation attestation (Agent ID 59646). Four payment rails: USDC on Base mainnet (default), USDC on Solana mainnet, HBAR/USDC on Hedera testnet, USDT on BNB Chain testnet. One free trial call per endpoint. Prices from $0.001/call.

## Output

Returns a JSON object with the SHA-256 hex hash string, the original input, the hash length (64 characters), and the algorithm name ('sha256')

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ai-rook-hash-sha-256-string-hashing-fdc6d49e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.ai-rook.com](https://www.zero.xyz/host/agents.ai-rook.com/llms.txt)