# Yahoo Mail Hosting Change Watch

> Yahoo Mail Hosting 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 2026-10-23).

Monitors whether a domain's email is hosted by Yahoo Mail and alerts when that status changes, comparing the current result against the previous check stored for 90 days.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/hosted-by/yahoo-mail?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/yahoo-mail-hosting-change-watch-2ffdaaf2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ygl98K2ql0n08o5_xBAez

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 yahoo-mail-hosting-change-watch-2ffdaaf2
```

Example prompt: Keep an eye on acmecorp.com and let me know if it ever stops being hosted by Yahoo Mail — I want to know the moment that changes.

## When to prefer this

Choose this endpoint when you need to be alerted to changes in Yahoo Mail hosting over time rather than just getting a point-in-time answer. Ideal for scheduled monitoring workflows where you poll repeatedly and only care about state transitions. Use the non-watch sibling endpoint if you only need the current hosting status once without change detection.

## Known failure modes

- Domain not provided or invalid — returns error with no hosting result
- DNS lookup failure via Cloudflare DoH — check may be inconclusive
- No previous check stored (first call) — 'changed' field may be null or false by default
- Rate limit or payment failure at $0.02 per call — request rejected

## How this service works

Change watch for is email hosted by yahoo 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 Yahoo Mail hosting status (true/false), a 'changed' boolean indicating whether it differs from the previous check, the specific fields that changed with before/after values, and a timestamp of when the status was last seen. Previous results are retained for 90 days for comparison.

## 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/yahoo-mail-hosting-change-watch-2ffdaaf2/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)