# extract-h6-as-json-watch

> extract-h6-as-json-watch is a paid API for AI agents from page.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).

Monitors H6 heading content on a web page and returns whether it has changed since the last check, with before/after field diffs.

## Facts

- Endpoint: GET https://page.intel.rallylive.ca/watch/page/h6/json?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/extract-h6-as-json-watch-50a9045c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sUxWHo_58qvLwYpJdSCGJ

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 extract-h6-as-json-watch-50a9045c
```

Example prompt: Watch the H6 headings on https://example.com/products for me — let me know as soon as any of them change by comparing against whatever you last saw there.

## When to prefer this

Use this endpoint when you need to detect changes specifically in H6-level headings on a web page over time, rather than full-page diffing or monitoring other element types. It is ideal for scheduled polling workflows where you want lightweight, structured change detection with field-level before/after diffs stored for up to 90 days, and you are willing to pay $0.02 per check via x402.

## Known failure modes

- Target URL is unreachable or returns non-200 status — check may fail or return empty extraction
- First-time call for a URL has no prior result to compare against — changed may be null or false by default
- Page blocks scrapers via robots.txt, CAPTCHA, or bot detection — extraction may be empty or incorrect
- 90-day retention window exceeded — previous snapshot no longer available for comparison
- H6 elements are dynamically rendered via JavaScript and not present in raw HTML — extraction may miss them

## How this service works

Change watch for extract h6 as json: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

## Output

Returns a JSON object containing the current H6 headings extracted from the page, a boolean `changed` field indicating whether content differs from the previous check, a list of changed fields each with before/after values, and a timestamp of when the page was last seen. Results from previous checks are retained for 90 days.

## 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/extract-h6-as-json-watch-50a9045c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from page.intel.rallylive.ca](https://www.zero.xyz/host/page.intel.rallylive.ca/llms.txt)