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

# Introduction

> API introduction

## Get Started

The Open API allows you to interact with Finup services and automate or integrate functionality into your applications.

<Info>
  Base API Url is [https://api.finup.io/backend/](https://api.finup.io/backend/)
</Info>

<Warning>All API keys, links, logos, IDs are not real and are provided for example.</Warning>

## Authentication

Most endpoints are authenticated using `Api key` that are selected from headers.
Also in some endpoints you need to pass the account\_id. A list of all accounts of the current user can be found in [/accounts](/open-api/account/get-all-accounts-by-supportadmin).

```json theme={null}
{
  "x-api-key": "d5f3b6a3d4e6f1..."
}
```