# NHL.com Uptime Change Watch

> NHL.com Uptime Change Watch is a paid API for AI agents from monitor.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Monitors whether nhl.com is down, compares the current check against your previous result, and returns whether the status has changed along with before/after field diffs.

## Facts

- Endpoint: GET https://monitor.intel.rallylive.ca/watch/monitor/is-down/nhl-com?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nhl-com-uptime-change-watch-a703a8b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y_GwWGeFC_pNcFhf-IMj6

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 nhl-com-uptime-change-watch-a703a8b1
```

Example prompt: Keep an eye on whether nhl.com goes down — check it now and tell me if the status has changed since last time, including what specifically changed.

## When to prefer this

Choose this endpoint when you need stateful change detection for nhl.com specifically — not just a one-time ping, but a comparison against your last known state. Ideal for scheduling repeated polling and triggering alerts only on status transitions rather than every check.

## Known failure modes

- If no previous check exists for this query, the 'changed' comparison may return null or a baseline-only result
- nhl.com may be partially up (CDN serving stale content) leading to false 'up' readings
- Network issues between the monitor and nhl.com could produce false 'down' results
- The 90-day history window means very old previous results may have expired

## How this service works

Change watch for is nhl com down: runs the check, compares it with the result from your previous call for the same query (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 the current up/down status of nhl.com, a boolean 'changed' flag indicating whether the result differs from the previous call, a list of fields that changed with their before and after values, and the timestamp of when the status was last seen. Previous results are retained for 90 days per query.

## 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/nhl-com-uptime-change-watch-a703a8b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from monitor.intel.rallylive.ca](https://www.zero.xyz/host/monitor.intel.rallylive.ca/llms.txt)