# meta-tags-all-watch

> meta-tags-all-watch is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Monitors all meta tags on a webpage and returns changes detected since the last check, including which fields changed with before/after values.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/site/meta-all
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/meta-tags-all-watch-e663595d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XPaU6EyJ8aRvWOYLfYUa4

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 meta-tags-all-watch-e663595d
```

Example prompt: Keep an eye on all the meta tags at https://example.com and let me know if anything has changed since the last time you checked — I want to see exactly which tags changed and what the before and after values were.

## When to prefer this

Choose this endpoint when you need to detect any change across all meta tags on a page in a single call, with built-in diffing (before/after values) and 90-day result retention. Prefer it over manually scraping and comparing meta tags yourself, or over single-field watchers when you want comprehensive coverage of every meta tag at once on a schedule.

## Known failure modes

- URL is unreachable or returns non-200 response — check will fail or return error
- First-time call for a URL has no previous snapshot to compare against — 'changed' may be null or baseline is set
- URL redirects to a different page — may track the destination instead of the source
- Payment failure via x402 protocol — request not processed
- No meta tags present on the page — returns empty snapshot

## How this service works

Change watch for meta tags all: runs the check and compares it with the result from your previous call for the same url (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when every meta tag on a page changes. $0.01 per check.

## Output

Returns the current full meta tag snapshot for the URL, a boolean 'changed' flag indicating whether any tags differ from the previous check, a list of exactly which fields changed with their before and after values, and the timestamp of when the previous state was last seen. Results are retained for 90 days per 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",
     "properties": {}
    }
   },
   "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/meta-tags-all-watch-e663595d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)