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

# Overview

> Learn about Telr APIs and SDKs

You can use the Telr API in test mode, which doesn’t affect your live data or interact with the banking networks. The API key you use to authenticate the request determines whether the request is live mode or test mode.

<CardGroup>
  <Card title="Payments" href="/api-reference/payments/overview">
    Accept payments from customers digitally or in-person.
  </Card>
</CardGroup>