# CoCo Page Hash – SHA-256 Content Fingerprint

> CoCo Page Hash – SHA-256 Content Fingerprint is a paid API for AI agents from cocoeatsai.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-19).

Returns a SHA-256 hash of a specific page on cocoeatsai.com, allowing callers to detect content changes or verify page integrity.

## Facts

- Endpoint: GET https://cocoeatsai.com/area4/agent/tools/page-hash?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/coco-page-hash-sha-256-content-fingerprint-ef9570c0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yqyK1Jir_jU8YMaAMarU8

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 coco-page-hash-sha-256-content-fingerprint-ef9570c0
```

Example prompt: Can you fetch the SHA-256 hash of the cocoeatsai.com agent tools page so I can tell if its content has changed since yesterday?

## When to prefer this

Choose this endpoint when you need a lightweight, low-cost cryptographic fingerprint of a specific cocoeatsai.com page — particularly for change detection, integrity verification, or audit logging. It is ideal for polling workflows where you want to know if page content has changed without downloading and diffing the full page body yourself.

## Known failure modes

- Page temporarily unavailable: server may return a non-200 status and no hash
- Payment failure: x402 micropayment of $0.001 USDC not processed, request rejected
- Rate limiting: too many requests in a short window may result in throttling
- Stale or cached response: hash may reflect a cached version rather than live content

## How this service works

Zach Riehn's lab: an about-me and portfolio, a news desk, The Atelier for AI experiments, Launch Lab for XRP research, and Fracture for games.

## Output

A JSON object containing a single field 'content_sha256' — a 64-character lowercase hexadecimal SHA-256 digest of the page's content at the time of the request. This can be compared against previous hashes to detect any changes or verify integrity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ]
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "content_sha256"
     ],
     "properties": {
      "content_sha256": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "content_sha256": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
 },
 "exampleNote": "Illustrative response subset; not a live observation."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coco-page-hash-sha-256-content-fingerprint-ef9570c0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cocoeatsai.com](https://www.zero.xyz/host/cocoeatsai.com/llms.txt)