# Is Email Hosted by Tutanota – Change Watch

> Is Email Hosted by Tutanota – 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 2026-10-20).

Monitors whether a domain's email is hosted by Tutanota and alerts when the result changes, storing comparison state for 90 days.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/hosted-by/tutanota?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-email-hosted-by-tutanota-change-watch-2b9e10a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8z8eAqeR_qMesPGEytZQ4

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-tutanota-change-watch-2b9e10a2
```

Example prompt: Keep watching protonmail.com and let me know if it ever switches to being hosted by Tutanota — tell me what changed and when.

## When to prefer this

Use this endpoint when you need to be alerted to changes in Tutanota email hosting status for a domain over time, rather than just a one-shot check. It is ideal for scheduled monitoring workflows where you want to detect migration events or infrastructure changes. Prefer the non-watch variant if you only need a single current result without historical comparison.

## Known failure modes

- Domain not provided or malformed — returns error
- DNS lookup failure for the domain — may return indeterminate result
- First-time call for a domain has no previous state to compare — 'changed' may be null or false by default
- Rate limiting if called excessively for the same domain
- Payment failure via x402 protocol — call not processed

## How this service works

Change watch for is email hosted by tutanota: 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 Tutanota-hosting boolean result, a 'changed' true/false flag indicating whether the result differs from the previous call for that domain, the fields that changed with before/after values, and a timestamp of when the state was last observed. State is retained for 90 days per domain.

## 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-tutanota-change-watch-2b9e10a2/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)