List Device Providers
Returns a list of all device providers.
The information that this endpoint returns for each provider includes a set of capability flags, such as device_provider.can_remotely_unlock. If at least one supported device from a provider has a specific capability, the corresponding capability flag is true.
When you create a Connect Webview, you can customize the providers—that is, the brands—that it displays. In the /connect_webviews/create request, include the desired set of device provider keys in the accepted_providers parameter. See also Customize the Brands to Display in Your Connect Webviews.
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Body
Category for which you want to list providers.
stable, consumer_smartlocks, beta, thermostats, noise_sensors, access_control_systems, cameras, connectors 
