The App Engine Admin API is a RESTful API for managing your App Engine applications
regardless of programming language. The Admin API
provides programmatic access to several of the App Engine administrative
operations that are found in the
[Google Cloud console](https://console.cloud.google.com/appengine).

After configuring authentication, you can begin managing your apps, including
deploying versions of applications and managing the amount of traffic to those
versions.

With the Admin API, you can manage your App Engine applications in
manners that best suit your environment or process. For example, the
Admin API provides you with:

- An integration point for your development and build tools.
- Tighter control around deploying new versions, including the ability to automate traffic migration between two versions or traffic splitting across one or more versions.
- The ability to programmatically manage applications across multiple Google Cloud projects.

> [!TIP]
> **Tip:** You can use client libraries to interact with App Engine Admin API. For information about the available programming languages, see [Using Client Libraries](https://docs.cloud.google.com/appengine/docs/admin-api/client-libraries).