# YouTube.com Uptime Change Watch

> YouTube.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 YouTube.com is down, compares the current check result against the previous call (stored 90 days), and returns current status, whether it changed, what fields changed, and when it was last seen.

## Facts

- Endpoint: GET https://monitor.intel.rallylive.ca/watch/monitor/is-down/youtube-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/youtube-com-uptime-change-watch-311848bb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q2G3eulTqBscXoeb13ecd

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 youtube-com-uptime-change-watch-311848bb
```

Example prompt: Watch YouTube.com for me and let me know if its up/down status has changed since the last time you checked — tell me what changed and when it was last seen.

## When to prefer this

Choose this endpoint when you need change-detection semantics — not just a raw live check, but a comparison against what was seen before. Ideal for polling loops, alert pipelines, or scheduled agents that need to know 'did anything flip?' rather than just the current status. Prefer the sibling live-check endpoint if you only need a one-shot current status with no historical comparison.

## Known failure modes

- No previous check stored (first call returns current state with no comparison baseline)
- YouTube check itself times out or is unreachable from the monitoring edge
- Stored state expired (older than 90 days, treated as fresh baseline)
- Payment failure or insufficient USDC balance preventing the $0.02 charge

## How this service works

Change watch for is youtube 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 answer for YouTube.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 a timestamp of when the status was last seen. Previous check results 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/youtube-com-uptime-change-watch-311848bb/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)