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

# Submitting User Events

> How to submit user events to Tranthor's API.

User events are the core of Tranthor. They inform the application about your end users's identify, characteristics, and actions. This data can then be used to decide how, when, and where to send messages to your users.

<CardGroup cols={2}>
  <Card title="SDK" icon="book" color="#2b2b2b0" href="/integrations/sdks">
    Sending data directly to Tranthor's segment compatible API.
  </Card>

  <Card title="REST API" icon="server" color="#2b2b2b" href="/integrations/sources/api">
    Sending data directly to Tranthor's segment compatible API.
  </Card>

  <Card title="Using Segment.io as an event Source" icon="pipe-section" color="#2b2b2b" href="/integrations/sources/segment">
    Segment is a popular customer data platform, which centralizes user data for business applications.
  </Card>
</CardGroup>