# HubSpot Mail Email Hosting Change Watch

> HubSpot Mail Email 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 2026-10-19).

Checks whether a domain's email is hosted by HubSpot Mail, compares with the previous result (retained 90 days), and returns what changed and when.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/hosted-by/hubspot-mail?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hubspot-mail-email-hosting-change-watch-3795aaa7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bSp7palqYsSw1f6lDpdyV

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 hubspot-mail-email-hosting-change-watch-3795aaa7
```

Example prompt: Keep an eye on whether acmecorp.com has its email hosted by HubSpot Mail, and let me know if that changes compared to the last time you checked.

## When to prefer this

Use this endpoint when you need to detect changes over time in whether a domain uses HubSpot Mail for email hosting, rather than just a one-time check. It is ideal for scheduled monitoring pipelines, sales intelligence workflows tracking CRM tool adoption, or competitive intelligence systems that need to know when a company switches email providers to or from HubSpot.

## Known failure modes

- Domain not previously checked — no historical result available for comparison, 'changed' field may be null or undefined
- DNS lookup failure for the target domain — may return an error or inconclusive result
- Domain does not exist or is malformed — returns an error response
- HubSpot Mail detection heuristics may not cover all MX/hosting configurations, leading to false negatives

## How this service works

Change watch for is email hosted by hubspot 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 result of whether the domain's email is hosted by HubSpot Mail, a 'changed' true/false flag, the specific fields that changed with their before and after values, and the timestamp of when the state was last observed. Previous result is 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/hubspot-mail-email-hosting-change-watch-3795aaa7/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)