# SiteSignal HTTP Cache CORS Cookie Policy

> SiteSignal HTTP Cache CORS Cookie Policy is a paid API for AI agents from trinity-throw-thursday-gravity.trycloudflare.com, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).

Inspects a single public HTTP URL and returns its cache-control directives, CORS headers, and redacted cookie security attributes from the response.

## Facts

- Endpoint: GET https://trinity-throw-thursday-gravity.trycloudflare.com/x402/http-policy
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-http-cache-cors-cookie-policy-bcf20537
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OGS1MQHadc-xPYbtbYyCo

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-http-cache-cors-cookie-policy-bcf20537
```

Example prompt: Can you check https://api.example.com/data for its cache-control headers, CORS policy, and any cookie security attributes — do a GET request and tell me what you find?

## When to prefer this

Use this endpoint when you need a quick, structured snapshot of a single public URL's HTTP-level security posture — specifically its cache policy, CORS configuration, and cookie security attributes — without needing full TLS or DNS analysis. Prefer this over general HTTP clients when you want parsed, structured output rather than raw headers.

## Known failure modes

- Target URL is unreachable or returns a non-2xx status — may return an error or empty policy data
- URL is not a valid HTTP/HTTPS URI — input validation error
- Private or firewall-protected URLs will not be accessible from the inspection service
- Rate limiting or bot protection on the target may block the request
- CORS headers only appear if the target responds to the optional Origin header correctly

## How this service works

Inspect one bounded public HTTP response for cache directives, CORS headers, and redacted cookie security attributes.

## Output

Returns parsed HTTP response data including cache-control directives (e.g. max-age, no-store), CORS headers (e.g. Access-Control-Allow-Origin, Access-Control-Allow-Methods), and redacted cookie security attributes (HttpOnly, Secure, SameSite) observed in the bounded GET response from the target URL.

## 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"
      },
      "origin": {
       "type": "string",
       "format": "uri",
       "description": "Optional HTTP(S) Origin header to send during the bounded GET."
      }
     }
    }
   },
   "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-http-cache-cors-cookie-policy-bcf20537/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trinity-throw-thursday-gravity.trycloudflare.com](https://www.zero.xyz/host/trinity-throw-thursday-gravity.trycloudflare.com/llms.txt)