> ## Documentation Index
> Fetch the complete documentation index at: https://docs.key2arena.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> B2B API for catalog access, ordering, and fulfillment.

The Key2Arena API provides direct access to product availability, customer pricing, balance, order creation, fulfillment status, and delivered content.

## Version

Current API version: `v1`.

## Base URL

> [!NOTE]
>
> [**https://api.key2arena.com/v1**](https://api.key2arena.com/v1)

Requests and responses use JSON unless otherwise specified.

## Authentication

The API uses OAuth 2.0 Client Credentials.

Each customer receives a Client ID and Client Secret. Keep these credentials secure and use the access token as a Bearer token in authenticated requests.

> [card] [Authentication](https://docs.key2arena.com/authentication.md)
>
> Learn how to generate and use an access token.

## API reference

> [card] [Products](https://docs.key2arena.com/products.md)
>
> Browse products, prices, stock, regions, and activation rules.

> [card] [Balance](https://docs.key2arena.com/balance.md)
>
> Check the balance available for purchases.

> [card] [Create Order](https://docs.key2arena.com/orders.md#create-an-order)
>
> Create an order for one or more products.

> [card] [Orders](https://docs.key2arena.com/orders.md)
>
> View orders and check their current status.

> [card] [Order Content](https://docs.key2arena.com/orders.md#order-content)
>
> Retrieve delivered keys and other order content.

> [card] [Errors](https://docs.key2arena.com/errors.md)
>
> View error codes, messages, and HTTP status responses.


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