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

# API Reference

> Operation-level reference for Uppzy M2M API endpoints.

API Reference is the request-and-response level view of the documented Uppzy M2M surface.

Use this section when you already understand the integration flow and need exact operation details such as:

* HTTP method
* Path
* Parameters
* Request body schema
* Response schema

If you are starting a new integration, read these pages first:

1. [API Authentication](/developer/api-authentication)
2. [M2M API Overview](/developer/m2m-api)
3. [M2M Code Samples](/developer/m2m-code-samples)
4. [M2M Chat Endpoints Guide](/developer/m2m-chat-endpoints) — Understand which endpoint to use when
5. API Reference endpoint pages

## Base URL

```text theme={null}
https://api.uppzy.com/api/v1
```

## Authentication header

All documented M2M operations require an API key:

```http theme={null}
X-API-Key: <YOUR_API_KEY>
```

## Published scope

The current published API reference covers:

* API key creation
* M2M chat operations
* M2M document operations
* M2M sessions and site statistics

## How to use this section

Use the developer guide pages for rollout strategy, code structure, and operational guidance.

Use API Reference when you need the exact operation contract for a specific endpoint.