On Plus and Max the board goes to the trash for 30 days. Basic has no trash: the board is deleted for good, and the call insists on ?permanent=true so that cannot happen by accident. ?permanent=true also empties a board out of the trash on any plan.
Authorization
Authorizationstringheaderrequired
Bearer <key>. The key needs boards:write scope. Create and manage keys in the developer console; what each scope unlocks is on the scopes page.
Path parameters
boardIdstringpathrequired
Query parameters
permanentbooleanquery
Defaults to false.
Response
204
No body
Trashed, or deleted for good.
Errors
409conflict
Basic without permanent=true, or the board is already in the trash.