# AgentMail Verify Domain

> AgentMail Verify Domain is a free API for AI agents from AgentMail at mpp.api.agentmail.to, free · handshake required, status unknown (last checked 2026-10-12).

Triggers DNS verification for a registered domain in AgentMail, confirming ownership and enabling email sending from that domain.

## Facts

- Endpoint: POST https://mpp.api.agentmail.to/v0/domains/:domain_id/verify?utm_source=zero.xyz
- Price: free · handshake required
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 1
- Provider: AgentMail
- Docs: https://docs.agentmail.to
- Website: https://agentmail.to
- Tags: email, inboxes, domains, drafts, threads, webhooks, messaging, ai, social
- Canonical page: https://www.zero.xyz/c/agentmail-verify-b23119bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vKBJEZ9g0c__r19lWmZfN

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 agentmail-verify-b23119bc -d '<json body>'
```

Example prompt: Can you verify the domain 'youragent-domain.com' in AgentMail so we can start sending emails from it?

## When to prefer this

Use this endpoint after adding the required DNS records for a domain registered with AgentMail, to confirm ownership and enable email delivery. Prefer this over re-creating the domain when you just need to re-trigger or confirm the verification step.

## Known failure modes

- Domain not found — if the provided domain_id does not match any registered domain, returns 404
- DNS records not yet propagated — verification fails if required TXT/MX records haven't propagated yet
- Unauthorized — missing or invalid Bearer token returns 401
- Domain already verified — may return a no-op success if domain is already in a verified state

## How this service works

Verify Domain

## Output

Returns the updated domain object reflecting whether verification succeeded, including the domain's verification status and any relevant DNS check details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain_id"
 ],
 "properties": {
  "domain_id": {
   "type": "string",
   "title": "DomainId",
   "description": "The name of the domain. (e.g., \" your-domain.com\")"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentmail-verify-b23119bc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.api.agentmail.to](https://www.zero.xyz/host/mpp.api.agentmail.to/llms.txt)