---
title: "Check Subdomain Availability"
method: GET
path: "/v1/domains/managed/check/{prefix}"
tags: ["Domains"]
---

# Check Subdomain Availability

`GET /v1/domains/managed/check/{prefix}`

Check if a managed subdomain prefix is available on migma.email. Requires API key with domain:read.

## Path parameters

- `prefix` string, required

## Response `200`

Availability result

- object
  - `success` boolean, required
  - `data` object, nullable
    - `available` boolean — Whether the subdomain is available
    - `prefix` string — The prefix that was checked
    - `fullDomain` string — The full domain name (e.g., acme.migma.email)
    - `reason` string — Reason if not available
  - `error` string, nullable

## Other responses

- `401` — Unauthorized

---

[API](https://skmtc.net/migma/apis/migma-ai-api-v1.md) · [All operations](https://skmtc.net/migma/apis/migma-ai-api-v1/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/migma/migma-ai-api-v1/versions/3f3dba69574b/schema)