> For the complete documentation index, see [llms.txt](https://docs.lingoblocks.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lingoblocks.com/docs/api/authentication.md).

# Authentication

To authenticate with the Lingo Blocks API, you will need to make a POST request to the following endpoint:

The **base url** is `https://api.lingoblocks.com`.

#### Authentication

* **Endpoint**: `/v1/chatbot/:id/authenticate`
* **Method**: POST
* **Request Body**:
  * `accessToken`: The existing access token for the session (optional).
* **Params**:
  * `id`: Your chatbot's unique ID.
* **Response**:
  * `accessToken`: The generated or verified access token for the session.
  * Note: If an existing `accessToken` is not provided or is invalid, a new `accessToken` will be generated.