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

# Integration with Third-Party Chat Apps

Use Fortytwo with desktop or web chat clients that support **custom/third-party API backends**.\
This page currently covers [Jan <Icon icon="arrow-up-right" />](https://www.jan.ai/) and will be expanded with other apps over time.

<Note>
  Prerequisites:<br />
  **Base URL:** `https://api.fortytwo.network/v1`<br />
  **Network access to:** `https://api.fortytwo.network/`<br />
  **Authentication Token:** `YOUR_FORTYTWO_API_KEY`
</Note>

<Callout icon="key" color="#FFC107" iconType="regular">
  **Keep your API key secure!** Your API key should be treated like a password. Never share it publicly or commit it to version control systems.
</Callout>

<Steps>
  <Step>
    Download and install Jan from the official website, [jan.ai <Icon icon="arrow-up-right" />](https://www.jan.ai/).
  </Step>

  <Step>
    Navigate to **Settings** → **Model Providers**.

    <img src="https://mintcdn.com/fortytwo-f43ac997/RFAnsL9D7M9hMX6W/resources/illustrations/api-usage-jan-example-s1.png?fit=max&auto=format&n=RFAnsL9D7M9hMX6W&q=85&s=f56ea13170432d6fb60248858a3d0853" alt="Jan: Model Providers interface page" width="2272" height="1824" data-path="resources/illustrations/api-usage-jan-example-s1.png" />
  </Step>

  <Step>
    Click `Add Provider` and enter a name, for example, **Fortytwo**.

    <img src="https://mintcdn.com/fortytwo-f43ac997/RFAnsL9D7M9hMX6W/resources/illustrations/api-usage-jan-example-s2.png?fit=max&auto=format&n=RFAnsL9D7M9hMX6W&q=85&s=6dd68c9d0b447ea57e077a633b257837" alt="Jan: Entering the provider name" width="2272" height="1824" data-path="resources/illustrations/api-usage-jan-example-s2.png" />
  </Step>

  <Step>
    Configure the provider:

    * **API Key:** Enter `YOUR_FORTYTWO_API_KEY`
    * **Base URL:** `https://api.fortytwo.network/v1`
    * Click **Refresh** to load available models.

    After those fields are completed, the <b>Fortytwo model will appear in the Models list.</b><br />
    *Please note that several Fortytwo model presets may be available at the same time, and their names may differ from those shown in the illustrations.*

    <Note>
      If no models appear after clicking **Refresh**, check that the Base URL and API key have been entered correctly.
    </Note>

    <img src="https://mintcdn.com/fortytwo-f43ac997/RFAnsL9D7M9hMX6W/resources/illustrations/api-usage-jan-example-s3.png?fit=max&auto=format&n=RFAnsL9D7M9hMX6W&q=85&s=7d0f62f9c8faba9a4e5c70749dd600d0" alt="Jan: Configuring the provider" width="2272" height="1824" data-path="resources/illustrations/api-usage-jan-example-s3.png" />
  </Step>

  <Step>
    Create new chat → **Select a model** — Under Fortytwo provider, select an available model from the list to start using it → **Start chatting**.

    <img src="https://mintcdn.com/fortytwo-f43ac997/RFAnsL9D7M9hMX6W/resources/illustrations/api-usage-jan-example-s4.png?fit=max&auto=format&n=RFAnsL9D7M9hMX6W&q=85&s=9000d5e177e341c8c6681d6d2abb8ead" alt="Jan: Chatting with Fortytwo Preview model" width="2272" height="1824" data-path="resources/illustrations/api-usage-jan-example-s4.png" />
  </Step>
</Steps>