---
updatedAt: 2025-11-13T22:54:21.000Z
agentTools:
  projectIndex: https://developer.corrigopro.com/llms.txt
---

# Prerequisites

This topic describes what you must do before you can start using the CorrigoPro Direct API.

## Step 1: Subscribe to CorrigoPro Direct

If you are not subscribed to CorrigoPro Direct, log in to your CorrigoPro Desktop, and select the *CorrigoPro Direct* membership level in your **Membership** tile.

A Corrigo representative will contact your company to discuss your integration needs, and the way how the integration sandbox will be configured.

## Step 2: Become familiar with JSON and cURL

* You must be familiar with [JavaScript Object Notation (JSON)](http://www.json.org/) which is used by CorrigoPro Direct, or must be able to translate JSON to the standard you are using.
* You must be familiar with any tool that can be used for execution of the REST requests.\
  You can use a free [cURL](https://developer.corrigopro.com/docs/tools-curl) tool, or [Postman](https://www.getpostman.com/) -  another very popular tool used for integration development and testing.

## Step 3: Become familiar with OAuth 2.0

Become familiar with OAuth 2.0 and the way how [authorization](https://developer.corrigopro.com/docs/authorization) works. It will help if you are familiar with the basic concepts, settings and the workflow.

## Step 4: Configure the CorrigoPro Direct

[Setup](https://developer.corrigopro.com/docs/configuration) the CorrigoPro Direct in your sandbox and in your live instance.