Connect an integration with OAuth

Authorize a service from Tokens & keys so its credential refreshes itself, instead of pasting a token.

Open Settings → Tokens & keys.
Add key (or Edit an existing one): give it a name, URL, and the integration node it is for.
On the key's row, press Connect.
Approve access on the provider's consent page. You are sent back to Tokens & keys with a notice, and the row reads "Connected as …".

What the row status means

Connected as …: Authorized. Reconnect repeats consent, e.g. to switch account.
Not connected (with Connect): Ready to authorize.
Needs an OAuth client: No client id and secret are configured for this provider — store them on the credential, or ask whoever runs the deployment to set them.
Connected (manual) / Not connected, no button: This provider only supports manual setup; supply the refresh token yourself.