| Api.ApiOptions | Base interface for API options. |
| Api.ApiOptions.HasOptions | Base interface for Api.ApiOptions in Apis that have options. |
| Api.ApiOptions.NotRequiredOptions | Base interface for Api.ApiOptions that are not required, don't exist. |
| Api.ApiOptions.Optional | Base interface for Api.ApiOptions that are optional. |
| GoogleApiClient | The main entry point for Google Play services integration. |
| GoogleApiClient.ConnectionCallbacks | Provides callbacks that are called when the client is connected or disconnected from the service. |
| GoogleApiClient.OnConnectionFailedListener | Provides callbacks for scenarios that result in a failed attempt to connect the client to the service. |
| PendingResult<R extends Result> | Represents a pending result from calling an API method in Google Play services. |
| Releasable | Represents a resource, or a holder of resources, which may be released once they are no longer needed. |
| Result | Represents the final result of invoking an API method in Google Play Services. |
| ResultCallback<R extends Result> | An interface for receiving a Result from a PendingResult as an asynchronous
callback. |
| Api<O extends Api.ApiOptions> | Describes a section of the Google Play Services API that should be made available. |
| Api.ApiOptions.NoOptions | Api.ApiOptions implementation for Apis that do not take any options. |
| Batch | Handles a batch of PendingResult items. |
| Batch.Builder | Builder for Batch objects. |
| BatchResult | The result of a batch operation. |
| BatchResultToken<R extends Result> | Result token used to retrieve the result of individual operations from a batch. |
| CommonStatusCodes | Common status codes that are often shared across API surfaces. |
| GoogleApiClient.Builder | Builder to configure a GoogleApiClient. |
| Scope | Describes an OAuth 2.0 scope to request. |
| Status | Represents the results of work. |