# Module matrix-sdk-android **Note**: You are viewing the nightly documentation of the Android Matrix SDK library. The documentation of the released library can be found here: [https://matrix-org.github.io/matrix-android-sdk2/](https://matrix-org.github.io/matrix-android-sdk2/) ## Welcome to the matrix-sdk-android documentation! This pages list the complete API that this SDK is exposing to a client application. *We are still building the documentation, so everything is not documented yet.* A few entry points: - **[Matrix](org.matrix.android.sdk.api.Matrix)**: The app will have to create and manage a **[Matrix](org.matrix.android.sdk.api.Matrix)** object. - From this **[Matrix](org.matrix.android.sdk.api.Matrix)** object, you will be able to get various services, including the **[AuthenticationService](org.matrix.android.sdk.api.auth.AuthenticationService)**. - With this **[AuthenticationService](org.matrix.android.sdk.api.auth.AuthenticationService)** you will be able to get an existing **[Session](org.matrix.android.sdk.api.session.Session)**, or create one using a **[LoginWizard](org.matrix.android.sdk.api.auth.login.LoginWizard)** or a **[RegistrationWizard](org.matrix.android.sdk.api.auth.registration.RegistrationWizard)**, which will finally give you a **[Session](org.matrix.android.sdk.api.session.Session)**. - From the **[Session](org.matrix.android.sdk.api.session.Session)**, you will be able to retrieve many Services, including the **[RoomService](org.matrix.android.sdk.api.session.room.RoomService)**. - From the **[RoomService](org.matrix.android.sdk.api.session.room.RoomService)**, you will be able to list the rooms, create a **[Room](org.matrix.android.sdk.api.session.room.Room)**, and get a specific **[Room](org.matrix.android.sdk.api.session.room.Room)**. - And from a **[Room](org.matrix.android.sdk.api.session.room.Room)**, you will be able to do many things, including get a **[Timeline](org.matrix.android.sdk.api.session.room.timeline.Timeline)**, send messages, etc. Please read the whole documentation to learn more!