# 54ch10 Hash — Cryptographic Hashing Utility

> 54ch10 Hash — Cryptographic Hashing Utility 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 arbitrary UTF-8 input data and returns hex and base64 encoded digests.

## Facts

- Endpoint: GET https://54ch10.uk/v1/hash
- 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-cryptographic-hashing-utility-03458d39
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n_z6esQ5P6Q9X8NA1Eb8n

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-cryptographic-hashing-utility-03458d39
```

Example prompt: Hash the string 'hello' using SHA-256 and give me both the hex and base64 encoded results.

## When to prefer this

Use this endpoint when you need a quick, paid, API-accessible cryptographic hash of a UTF-8 string — especially within the 54ch10 pre-interact security workflow where hashing is used as a preprocessing step before wallet, token, or URL risk checks. Prefer this over local hashing when you need a consistent, auditable external hash record or are already using the 54ch10 MCP toolchain.

## Known failure modes

- Missing required 'q' query parameter returns an error
- Missing required 'algo' parameter returns an error
- Unsupported algorithm value (not sha256, sha1, or md5) returns a validation error
- Payment not included or insufficient USDC causes a 402 Payment Required response
- Network timeout or service unavailability

## 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

Returns a JSON object with a boolean 'ok' field, the hex-encoded hash string, the base64-encoded hash string, the algorithm used, a tier label, and a disclaimer note. Example: {ok: true, hex: '2cf24dba...', base64: 'LPJNul+...', algo: 'sha256', tier: 'x402', disclaimer: '...'}.

## 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-cryptographic-hashing-utility-03458d39/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)