Open API v2 will be deprecated on April 3, 2023. Please begin transitioning to Open API v3 as soon as possible. As of September 29, 2022 all new apps will only be permitted to use Open API v3.
Register Your App
Registering your app with Etsy gives you your API key and allows you to start working on your app. See our Merchandising and Seller Tools pages for an overview of the Etsy API.
When your app is created, it starts with Personal Access to our production systems to use during development.
Personal Access 
Personal Access includes the following:
- Read access to any public, unauthenticated resources such as Shops and Treasuries.
- Authenticated read/write access to data belonging to the member who created the application. This includes reading data like Receipts and Billing as well as creating, editing or deleting a shop's Listings. If necessary, access can be provided upon request for a small number of test users in addition to the member who owns the app.
Commercial Access
Commercial Access includes authenticated read/write access for unlimited Etsy members. If your application doesn't need these privileges, then you are welcome to use your app in personal access mode indefinitely.
If you do want commercial access for your application, first use your Personal Access to get everything working and then take a look at our criteria for Commercial Access.