A Standard plan or higher is required to attach a custom domain to your application.
Endpoint
Authorization
Include your API key in the request header:Path Parameters
The unique identifier of your application. You can find this in the URL of your application’s dashboard.
Body Parameters
The custom domain you want to attach to your application. Use the apex domain (e.g.
example.com) or a specific subdomain (e.g. app.example.com). Do not include https:// or a trailing slash.Response
Indicates the outcome of the request. Returns
"success" when the domain has been registered with the application successfully.Examples
Response Example
After a successful response, use the DNS Settings endpoint to retrieve the CNAME and TXT records you need to add at your domain registrar. Your domain will not route to the application until those DNS records propagate and are validated.