To access TMDB API, you’ll need to authenticate with either an API key or an access token (which can be used as a bearer token). Follow the steps below to obtain these credentials.
  1. Login to your TMDB account (or create a new account if you don’t have one). You’ll be redirected to your TMDB dashboard. tmbd dashboard tmbd dashboard
  2. On the top-right corner of your dashboard, click on the account icon. From the dropdown-menu, select settings. account settings account settings
  3. On the settings menu, selet API. Scroll to the bottom to find the API Read Access Token and API key. You can copy any of the credentials to use for authentication. API credentials API credentials
Using the bearer token has an added benefit of being a single authentication process that you can use across both the v3 and v4 methods.