# Is Email Hosted by Yandex Mail – Change Watch

> Is Email Hosted by Yandex Mail – Change 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 Yandex Mail and alerts when that status changes, returning a diff of before/after values.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/hosted-by/yandex-mail?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-yandex-mail-change-watch-903a6e8f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_X7ocruHYwJgHioR5z9yJz

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-yandex-mail-change-watch-903a6e8f
```

Example prompt: Keep watching whether rallylive.ca's email is hosted by Yandex Mail and let me know if anything changes from the last time you checked.

## When to prefer this

Choose this endpoint when you need change detection rather than a one-off lookup — it compares the current Yandex Mail hosting result against a stored baseline from a prior call, making it ideal for scheduled polling or alerting workflows. Prefer it over the standard (non-watch) check when you want to know *if* something changed and *what* changed, not just the current state. Use the bulk sibling endpoint instead if you need to monitor multiple domains in one call.

## Known failure modes

- Domain not previously checked — no baseline to compare against, so 'changed' will be null or baseline-less
- Domain MX records temporarily unresolvable — may return an inconclusive or error result
- Results older than 90 days are purged — diff comparison unavailable for stale domains
- Invalid or malformed domain input — request rejected or empty result
- Rate limiting or payment failure — 402 response requiring valid x402 payment

## How this service works

Change watch for is email hosted by yandex mail: 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 answer for whether the domain's email is hosted by Yandex Mail, a 'changed' true/false flag, a field-level diff showing before and after values for any fields that changed, and a timestamp of when the previous result was last seen (retained up to 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/is-email-hosted-by-yandex-mail-change-watch-903a6e8f/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)