# is-email-hosted-by-kolab-watch

> is-email-hosted-by-kolab-watch is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-24).

Monitors whether a domain's email is hosted by Kolab and alerts when that status changes, comparing current results against the previously stored check.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/hosted-by/kolab?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-email-hosted-by-kolab-watch-1becbbf7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DJ3VbkLU1Ct2WcAAFf1XF

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 is-email-hosted-by-kolab-watch-1becbbf7
```

Example prompt: Keep an eye on whether acmecorp.com is hosted by Kolab for email, and let me know if that status has changed since the last time you checked.

## When to prefer this

Choose this endpoint when you need to be alerted about changes to Kolab email hosting status over time rather than just checking the current state once. Ideal for scheduled monitoring workflows where you want to detect infrastructure migrations, onboarding to Kolab, or departures from Kolab. Use the single (non-watch) variant if you only need a one-time check with no change comparison.

## Known failure modes

- Domain not provided or invalid — returns an error indicating missing or malformed input
- No previous check stored (first call for domain) — 'changed' field may be null or false with no before value
- Domain has no MX records — check may return false with no email hosting detected
- Service unavailable — HTTP 5xx response
- Payment not processed — x402 payment required error

## How this service works

Change watch for is email hosted by kolab: runs the check, compares it with the result from your previous call for the same domain (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 boolean result for whether the domain's email is hosted by Kolab, a 'changed' boolean indicating whether the result differs from the previous check (stored for 90 days), a list of fields that changed with before/after values, and the timestamp of when it was last observed.

## 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/is-email-hosted-by-kolab-watch-1becbbf7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from email.intel.rallylive.ca](https://www.zero.xyz/host/email.intel.rallylive.ca/llms.txt)