# Core API Overview

Elements provides a set of RESTful APIs that allow for the management of various subsystems. The APIs provide core functionality such as login, sessions, in-app purchase processing, inventory management, leaderboards, and many other useful features.

### APIs List <a href="#apis-list" id="apis-list"></a>

In this section, you will find detailed info about each of these:

* [Sessions](https://manual.namazustudios.com/v3/core-features/sessions)
* [Applications](https://manual.namazustudios.com/v3/core-features/applications)
* [Users and Profiles](https://manual.namazustudios.com/v3/core-features/users-and-profiles)
* [Digital Goods](https://manual.namazustudios.com/v3/core-features/digital-goods)
* [Progress and Missions](https://manual.namazustudios.com/v3/core-features/progress-and-missions)
* [Leaderboards](https://manual.namazustudios.com/v3/core-features/leaderboards)
* [Matchmaking](https://manual.namazustudios.com/v3/core-features/matchmaking)
* [Followers](https://manual.namazustudios.com/v3/core-features/followers)
* [Friends](https://manual.namazustudios.com/v3/core-features/friends)
* [Reward Issuance](https://manual.namazustudios.com/v3/core-features/reward-issuance)
* [Push Notifications](https://manual.namazustudios.com/v3/core-features/push-notifications)
* [Auth Schemes](https://manual.namazustudios.com/v3/core-features/auth-schemes/custom-auth-schemes)
* [Save Data](https://manual.namazustudios.com/v3/core-features/save-data)
* [Schemas and Metadata Specifications](https://manual.namazustudios.com/v3/core-features/schemas-and-metadata-specifications)