# page-keyword-monitor

> page-keyword-monitor is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Fetches a web page and reports whether each specified keyword is present, how many times, and a context snippet, with change detection since the last check.

## Facts

- Endpoint: GET https://intel.rallylive.ca/monitor/keyword
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/page-keyword-monitor-a099082f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FlB-zneIMk4klGkFCASfR

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 page-keyword-monitor-a099082f
```

Example prompt: Can you check the page at https://example.com/product/sneakers for the keywords 'in stock', 'sold out', and 'limited' — tell me if any of them are there, how many times each appears, and whether anything changed since last time?

## When to prefer this

Choose this endpoint when you need lightweight, per-call keyword presence detection on a specific web page, especially when you also want built-in change tracking (appeared/disappeared) without setting up your own storage or diffing logic. It is ideal for e-commerce stock monitoring, brand mention tracking, and content change alerting at low cost ($0.01/call). Prefer it over full scraping APIs when you only care about text-level keyword signals, not structured data extraction.

## Known failure modes

- URL is unreachable or returns a non-200 status — endpoint may return an error or empty result
- Page uses heavy JavaScript rendering and readable text is limited — keyword may not be detected
- No previous result stored for the URL — change detection unavailable on first call
- Keywords contain special characters that interfere with matching
- Rate limiting or payment failure returns an error before the check is performed

## How this service works

Keyword monitor: fetches a page and reports, for each keyword you give (comma-separated after the URL), whether it is present in the readable text, how many times, and a context snippet; also remembers the previous result per URL so it can tell you which keywords appeared or disappeared since your last call. 'Sold out', 'in stock', price wording, name mentions. $0.01 per check.

## Output

Returns for each keyword: whether it is present (boolean), occurrence count, a context snippet showing surrounding text, and a change summary indicating which keywords appeared or disappeared compared to the previous check of that 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/page-keyword-monitor-a099082f/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)