Mailbox orders
GET
/managed-domains

The workspace's bought domains and how many more mailboxes each can take (5 per domain on Google Workspace and Microsoft 365). Add mailboxes to one with a domain entry { name, existing: true, mailboxes } in POST /mailbox-orders/quote. canAdd: false says why in reason. Not gated on the managed mailboxes feature.

Authorization

bearerAuth
AuthorizationBearer <token>

An API key created under Settings → API & Webhooks.

In: header

Response Body

application/json

application/json

curl -X GET "https://example.com/managed-domains"
{  "data": [    {      "id": "string",      "name": "string",      "platform": "google",      "live": 0,      "pending": 0,      "slotsLeft": 0,      "canAdd": true,      "reason": "full",      "adminEmail": "string"    }  ]}