# title-change-detect-watch

> title-change-detect-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 a webpage's title and description for changes by comparing the current result against a stored snapshot from the previous call, returning what changed and when.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/site/title-history
- 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/title-change-detect-watch-f4a1679d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q8XHnB2JU2wbPpVtPjtRe

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 title-change-detect-watch-f4a1679d
```

Example prompt: Keep an eye on https://example.com for me — check if the page title or meta description has changed since the last time you looked, and tell me exactly what's different.

## When to prefer this

Choose this endpoint when you need lightweight, scheduled monitoring of a specific webpage's title and meta description without scraping full page content. It is ideal for SEO change tracking, competitor landing page monitoring, or confirming content deployments. It is preferable over full-page scrapers when only metadata changes matter and cost efficiency is important ($0.01 per check). Use it over general change-detection services when you specifically want title and description diffs with 90-day history retention.

## Known failure modes

- URL is unreachable or returns non-200 status — check will fail with an error
- First call for a URL has no previous snapshot to compare against, so changed will be false by default
- URL redirects or changes domain — may produce inconsistent comparisons
- No title or description found on the page — fields returned as empty
- Rate limiting or network timeouts on the target server
- History expired after 90 days — comparison baseline lost

## How this service works

Change watch for title change detect: 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 title and description change detection changes. $0.01 per check.

## Output

Returns the current title and description of the page, a boolean indicating whether either field changed since the last call for the same URL, the specific fields that changed along with their before and after values, and the timestamp of when the state was last recorded. History is 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/title-change-detect-watch-f4a1679d/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)