# Pre-requisites
source: https://developer.mastercard.com/account-catalog-services/tutorial/api-testing/step1/index.md

### Pre-requisites {#pre-requisites}

* [JDK 11](https://www.java.com/en/) and later
* [Eclipse](https://www.eclipse.org/downloads/packages/release/2021-09/r/eclipse-ide-enterprise-java-and-web-developers) (or any other IDE of your choice). For this tutorial, Eclipse has been used.
* Account Catalog Services Open [API specification](https://developer.mastercard.com/account-catalog-services/documentation/api-reference/index.md).
* [Maven](https://maven.apache.org/download.cgi) or [Gradle](https://gradle.org/) to build the project. For this tutorial, Maven has been used.