How do I show only one provider in the widget?

Pass the providers field in the /auth/generateWidgetSession body to control which providers appear and override the dashboard default list (for example…

Pass the providers field in the /auth/generateWidgetSession body to control which providers appear and override the dashboard default list (for example "providers": "garmin", or a comma-separated string for several).

Passing a single provider skips the selection screen and goes straight to that provider's auth flow.

Alternatively, use the per-provider auth endpoint /v2/auth/authenticateUser?resource=PROVIDER to generate a link directly for one provider. This is useful for building one connect flow per provider, or limiting users to one provider at a time. See implementing the Terra widget.