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  title: `Commerce Modules`,
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# {metadata.title}

In this section of the documentation, you'll find guides and references related to Medusa's Commerce Modules.

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## How to Use Modules

The Commerce Modules can be used in many use cases, including:

- Medusa Application: The Medusa application uses the Commerce Modules to expose commerce features through the REST APIs.
- Serverless Application: Use the Commerce Modules in a serverless application, such as a Next.js application, without having to manage a fully-fledged ecommerce system. You can use it by installing it in your Node.js project as an NPM package.
- Node.js Application: Use the Commerce Modules in any Node.js application by installing it with NPM.