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

# Messaging API

## Idea

[Messaging API](https://app.cryptolens.io/Message) allow you to broadcast messages to all instances of the application (i.e. all end users), for example to notify about new updates. You can send new messages on the [following page](https://app.cryptolens.io/Message).

<iframe width="560" height="315" src="https://www.youtube.com/embed/-ern4pReMoE" title="In-App Notifications with Messaging API in Cryptolens" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen />

## Use cases

* [Updates tracking](/feature/messaging/updates-tracking) - Explains how you can you the Messaging API to notify users about updates.
* [Notifications](/feature/messaging/notifications) - Explains how to create a news feed inside your application.

<img src="https://mintcdn.com/cryptolensab/j6HibCfqNX45CJIL/images/messaging-api.png?fit=max&auto=format&n=j6HibCfqNX45CJIL&q=85&s=668a498f66feea540804ac5d1989744f" alt="Messaging Api Pn" width="1000" height="671" data-path="images/messaging-api.png" />