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

# Overview

## **Overview**

Cobalt Link is the client-side component that your users will interact with in order to link their EMR to Cobalt and allow you to access their EMR via the Cobalt API. Link is used to obtain a `public_token`, which can then be exchanged for an `access_token`, which is used to authenticate requests to the Cobalt API.

**The Cobalt Link** flow has the following steps:

1. Call  `https://api.usecobalt.com/link/token/create` to create a `link_token` and pass it to your app's client.
2. Use the `link_token` to open Link for your user. In the `onSuccess` callback, Link will provide a temporary `public_token`.
3. Call `https://api.usecobalt.com/link/token/exchange` to exchange the `public_token` for a permanent `access_token`.
4. Store the `access_token` and use it to make API requests.