> ## Documentation Index
> Fetch the complete documentation index at: https://docs.thefaithapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Flutter apps can plug into hosted sign-in

> Developers can register a Flutter app in Developer Access and use the new SDK to receive a member bearer token without hosting a callback website.

# Flutter apps can plug into hosted sign-in

Developer Access now includes **Add Flutter app**. Enter the app's package name
with `.thefaithapp` appended, and TheFaithApp creates the matching mobile
callback automatically.

The new Flutter SDK opens TheFaithApp's hosted member sign-in, returns the
member to the installed app, stores the member session securely, and provides
an authenticated client for the `v1` API. Developers provide only the client
API key.

Mobile developers no longer need to host a separate callback website just to
receive the authorization result. A standalone sample app is also available
for testing the complete sign-in and API flow on iOS and Android. The API
Reference includes a Flutter quickstart covering installation, app
registration, sign-in, authenticated requests, session restoration, and
logout.