Account

The account a token belongs to, and what that token is allowed to do.

GET /me is the cheapest way to verify a token: it reads no library data, so it answers immediately whatever the size of the library behind it — unlike every other endpoint here, which opens the library to serve the request.

Use it to confirm a key still works, to show which account a stored key belongs to, and to read the token's scope before attempting a write that a read token would be refused.