# SiteSignal Public JSON API Response Shape Snapshot

> SiteSignal Public JSON API Response Shape Snapshot is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).

Fetches a public JSON API endpoint and returns an inventory of its key paths and value types, with HTTP status and SHA-256 evidence, without exposing raw values.

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/json-api-shape
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-public-json-api-response-shape-snapshot-2c4ef13d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_klnqD_1vM7SBpOUqb_S3V

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 sitesignal-public-json-api-response-shape-snapshot-2c4ef13d
```

Example prompt: Can you inspect the response shape of https://api.example.com/v1/products and show me all the key paths and their types, going up to 4 levels deep and capturing up to 50 paths?

## When to prefer this

Choose this endpoint when you need a safe, reproducible snapshot of a public JSON API's structure — its key names and types — without storing or exposing raw values. Ideal for API documentation, integration planning, schema diffing across versions, or auditing third-party APIs. Prefer over a raw HTTP fetch when you want bounded, structured extraction with a tamper-evident hash.

## Known failure modes

- Non-public or authentication-required URL returns an auth error or empty body
- URL is not a valid JSON endpoint, causing parsing failure
- maxDepth or maxPaths limits truncate large or deeply nested responses
- Network timeout or DNS failure for unreachable hosts
- Rate limiting or blocking by the target server returns a 429 or 403
- URL format validation fails if the provided URL is malformed

## How this service works

Inventory bounded observed key and type paths from one unauthenticated public JSON API response, with status and SHA-256 evidence but no raw values.

## Output

Returns a bounded inventory of key paths and their inferred value types found in the public JSON API response, along with the HTTP status code and a SHA-256 hash of the response body as evidence — no raw field values are included.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri"
      },
      "maxDepth": {
       "type": "integer",
       "default": 4,
       "maximum": 6,
       "minimum": 1
      },
      "maxPaths": {
       "type": "integer",
       "default": 50,
       "maximum": 100,
       "minimum": 1
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitesignal-public-json-api-response-shape-snapshot-2c4ef13d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phases-prot-shine-royal.trycloudflare.com](https://www.zero.xyz/host/phases-prot-shine-royal.trycloudflare.com/llms.txt)