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

# Introduction

> Understand general concepts, response codes, and authentication strategies of the Chatlevel API.

## Base URL

The Chatlevel API is built on REST principles. All requests contain the following base URL:

```http theme={null}
https://api.chatlevel.io/v1
```

## Authentication

To authenticate you need to add an `Authorization` header with the contents of the header being your API Key. You can generate your API Key from within the Chatlevel app under the developers page.

```json theme={null}
{
  "headers": {
    "Authorization": "Bearer sk_123456789"
  }
}
```