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FastSpring App Documentation

Use the left menu to navigate through topics or use the search bar at the top of this page.

Classic Platform Sellers: If you log in to FastSpring via, you use the FastSpring Classic platform and should reference Classic Documentation.
Consumers: If you purchased from a company that uses FastSpring to process online transactions, go to FastSpring Consumer Support.

Discover FastSpring

See the Launch Checklist to understand the steps involved to set up your first FastSpring Store.


Store Builder Library

The FastSpring Store Builder Library is a JavaScript library that can be used to add ecommerce features to your website.

FastSpring API

Learn more about the FastSpring API for protocols to send and retrieve FastSpring data or Webhooks for advanced integration and tracking events.