# hreflang-map-watch

> hreflang-map-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 website's hreflang map for changes by comparing the current result against the previous check (stored 90 days), returning changed status and field-level diffs.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/site/hreflang
- 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/hreflang-map-watch-12232d48
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6rqXMGsWSRFFR9ASSo76G

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 hreflang-map-watch-12232d48
```

Example prompt: Check the hreflang map for https://example.com and tell me if anything has changed since the last time you checked — show me exactly which fields changed and what the before and after values were.

## When to prefer this

Use this endpoint when you need automated, scheduled monitoring of hreflang tag changes on a specific URL, and want field-level diffs (before/after values) rather than just a snapshot. Prefer this over a plain hreflang-map check when you need to know what changed and when, not just what the current state is. Ideal for SEO change-detection pipelines, post-deployment audits, and client reporting workflows.

## Known failure modes

- URL not reachable or returns non-200 response — check may fail or return empty result
- No previous result stored (first call) — 'changed' will be false or undefined, no diff available
- Previous result older than 90 days — comparison baseline is purged, treated as first call
- Malformed or absent hreflang tags on the target page — empty or incomplete hreflang map returned
- Payment failure — endpoint returns 402 if x402 payment is not completed

## How this service works

Change watch for hreflang map: 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 hreflang map changes. $0.01 per check.

## Output

Returns the current hreflang map for the URL, a boolean 'changed' flag indicating whether it differs from the previous call (stored for 90 days), a field-level diff listing exactly which attributes changed with before and after values, and a timestamp of when the map was last seen.

## 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/hreflang-map-watch-12232d48/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)