Before being able to generate the developer key, you must enable a two factor authentication. This will send an activation code to your phone to enable you to carry out the following steps. Once these steps have been completed you can disable this setting.
1.Login to etsy.com website using your Etsy username and password.
2.Click “Developers” link at the bottom of page.
3.Click “Register as developer” on the left-hand menu.
4.Fill in the form to create a new application using the following data as an example:
5. Click “I am not a robot” and “Read Terms and Create App” button. A new page will be displayed where you can copy Consumer Key and Consumer Secret (displayed as Keystring and Shared Secret respectively).
Having created the Consumer Key and Consumer Secret, you will then need to create the Access Token and Access Secret by following the steps below: