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

# Cursor API key

> Connect the Cursor Agent SDK with a Cursor API key.

| Item        | Behavior                                                   |
| ----------- | ---------------------------------------------------------- |
| Use for     | Cursor Agent                                               |
| Credentials | A Cursor API key stored by Radius                          |
| Validation  | Radius validates the key with Cursor before saving it      |
| Models      | Radius requests the models available to the Cursor account |

Radius keeps the bundled Cursor Agent SDK, encrypted credential, account model
catalog, and current conversation selection separate. Cursor doesn't currently
have a native **CLI** configuration lane in Radius.

## How it works

1. Open **Radius Settings → Agents → Cursor**.
2. Paste your Cursor API key and select **Save**.
3. Radius stores the key in encrypted credential storage.
4. Radius supplies the key to its bundled Cursor Agent SDK and loads the models
   available to your account.

Cursor currently supports only the **API Key** method in Radius.