The connectors (Jira, Trello, Slack, Notion and the rest) Mida can pull from in the editor, and which ones this person has connected. Connecting is a browser OAuth flow; the API lists.
Authorization
Authorizationstringheaderrequired
Bearer <key>. The key needs user:read scope. Create and manage keys in the developer console, or use an OAuth app to act for other people; what each scope unlocks is on the scopes page.