first choose a trigger on the Zapier list before being able to select the Abyssale application. (the image below took the "Schedule by Zapier" as a trigger exemple).

​

Then, select the action you want to trigger

Once you chose the Abyssale action, you will be asked to connect your Abyssale account.
​

Go to: https://app.abyssale.com/ and log in using your email address and password.

Go to Settings > API

Click on the Request an API key button.

Copy your key

Paste it into the Zapier field.