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

# Authentication

> How to authenticate on any website using Dendrite Vault

Our Chrome extension, **Dendrite Vault**, enables you to securely share your website permissions with your AI agent, mirroring the access you have in your local browser.

<Steps>
  <Step title="Download the extension">
    First, add Dendrite Vault to your browser, [download it here](https://chromewebstore.google.com/detail/faflkoombjlhkgieldilpijjnblgabnn?hl=en\&authuser=0). On install, you will be prompted to authenticate
    with your personal Dendrite account.
  </Step>

  <Step title="Save Auth Session">
    Go to any website where you're currently authenticated. Click on the
    extension icon and press **Save authentication session**
  </Step>

  <Step title="Authenticate in Script">
    Once your session has been saved, you can add it to your dendrite script
    with:

    ```python theme={null}
    browser.authenticate("domain.com")
    ```
  </Step>
</Steps>

## Install and Activate Extension

Download the Dendrite Vault [here](https://chromewebstore.google.com/detail/faflkoombjlhkgieldilpijjnblgabnn?hl=en\&authuser=0).

You'll be prompted to log in to your Dendrite account.

Once you've logged in, simple use the extension by pressing the icon in the top right corner of your browser.

<img src="https://mintlify.s3.us-west-1.amazonaws.com/dendrite/examples/images/auth-use-plugin.png" alt="Extension Dashboard" />

## Authenticating on Instagram

To log in to instagram with your agent your need to:

<Steps>
  <Step title="Log Into Instagram in your Browser" />

  <Step title="Save your Authentication Session">
    Open the Dendrite Vault extension and save your session on Instagram in your browser.

    <img src="https://mintlify.s3.us-west-1.amazonaws.com/dendrite/examples/images/instagram-example.png" alt="Instagram Dendrite Vault Examples" />
  </Step>

  <Step title="Use the Authenticate Function">
    Use the `authenticate` function in a script, like in the example below:
  </Step>
</Steps>

```python auth_example.py theme={null}
import asyncio
from dendrite import DendriteBrowser


async def authenticate_on_instagram():
    dendrite_browser = DendriteBrowser()
    await dendrite_browser.authenticate("instagram.com")
    page = await dendrite_browser.goto(
        "https://instagram.com",
        expected_page="You should be logged in with the instagram feed visible",
    )
    res = await page.ask("Describe the first post in my feed")
    print("First post description: ", res)


asyncio.run(authenticate_on_instagram())
```

## Let's scale up

<Card title="Remote Browser" icon="arrow-trend-up" href="/examples/remote-browser">
  Use a remote browser to run web automations in the cloud
</Card>