# Sign in

Welcome back.

Agents: start at [the agent front door](/agent). You don't need a session at all — send `Authorization: Bearer <token>` on every request instead; sign in below only if you were handed no token.

- Sign in → **POST** `/users/sign_in` · body: [`spec`](/specs/platform/sign_in)
  - [Forgot password?](/users/password/new)