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Introduction to API

The Composable Commerce API follows a microservice architecture that enables you to plug commerce into any part of your application. The API is inspired by the JSON API specification, follows predictable REST API URLs, and supports cross-origin resource sharing. The two-track Authentication Layer enables destructive and non-destructive actions across projects.


Commerce supports multiple geographical regions. For each customer, Commerce accounts and stores are created in a specific region. When you interact with and use the Commerce API, ensure that you use the API end point for the region your store is in. To view the API base URL field, go to System > Application Keys in Commerce Manager.

In the documentation, we use the variable name <your_elasticpath_api_base_url> in the sample requests. When making API requests, customers substitute the hostname for the variable.


All requests must include an authentication token in the header. Generate the token by using your API keys.

  • To find your API keys, go to System > Application Keys section in Commerce Manager.
  • To use the API to generate a token from your API keys, see the Authentication or Your first API request sections.
  • To learn more about API keys, see the Security section.


If you are looking to test or develop with the Composable Commerce API, we recommend using the Elastic Path Postman collection. The collection includes all endpoints.

Software Development Kits

Elastic Path officially maintains the following Software Development Kits (SDK) for Composable Commerce. Other community-driven SDKs are available within the Moltin GitHub organization.

JavaScript SDK

If you are beginning a new project, we recommend that you use the JavaScript SDK for Composable Commerce, which is under active maintenance. Within this guide, the supported endpoints include sample JavaScript SDK requests. The Composable Commerce Reference Store is implemented using this SDK.

Get the JavaScript SDK.

Composable CLI

The Composable CLI is a command line tool designed to make it easy for you to build Elastic Path-powered frontend experiences. It also enables you to configure various services and integrations provided by Elastic Path.

Composable Starter

The Composable Starter is a reference implementation of a storefront built using the Composable CLI. It is a fully functional storefront that you can use as a starting point for your own projects. You can also use it to learn how to build a storefront using Elastic Path products.

Education resources

You can find a self-serve Composable Commerce API course and other learning opportunities at Elastic Path Education. Sign in, select the Content Library, and search for Composable Commerce API.