# 54ch10 Hash Free

> 54ch10 Hash Free is a paid API for AI agents from 54ch10.uk, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Computes a cryptographic hash (SHA-256, SHA-1, or MD5) of a UTF-8 string and returns the hex and base64 encoded digest

## Facts

- Endpoint: GET https://54ch10.uk/v1/hash/free
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/54ch10-hash-free-04377704
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h4KUxsymO76RqlSgfDBT0

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 54ch10-hash-free-04377704
```

Example prompt: Can you hash the string 'hello' using SHA-256 and give me both the hex and base64 output?

## When to prefer this

Choose this endpoint when you need a fast, cheap, pay-per-call cryptographic hash of a string without setting up your own infrastructure. Ideal for AI agents that need on-demand hashing without a local library, or when operating in a sandboxed environment. At $0.001 USDC per call it is cost-effective for occasional or moderate-volume use. Prefer a local library if you need very high throughput or cannot make outbound HTTP calls.

## Known failure modes

- Missing required 'q' or 'algo' query parameters returns an error
- Unsupported algorithm value (not sha256, sha1, or md5) causes validation failure
- Empty or non-UTF-8 data may return an error
- Payment failure via x402 protocol blocks access
- Rate limit exceeded if calling beyond allocation

## How this service works

54ch10: pre-interact URL check. Paste a link, get brief + domain + page. Taste /v1/open/free. 80 calls for $1. Wire in 30s. Analytics-only tooling. Not financial advice.

## Output

A JSON object containing: ok (boolean success flag), hex (hex-encoded hash string), base64 (base64-encoded hash string), algo (the algorithm used), tier (pricing tier), and a disclaimer note. On success ok is true and hex/base64 contain the computed digest.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "algo",
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "UTF-8 data to hash (or POST JSON {algo,data})"
      },
      "algo": {
       "enum": [
        "sha256",
        "sha1",
        "md5"
       ],
       "type": "string",
       "description": "Hash algorithm"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "hex": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
  "algo": "sha256",
  "tier": "x402",
  "base64": "LPJNul+wow4m6DsqxbninhsWHlwfp0JecwQzYpOLmCQ=",
  "disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/54ch10-hash-free-04377704/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 54ch10.uk](https://www.zero.xyz/host/54ch10.uk/llms.txt)