To talk to the Trello API you must create two things, one is the key and the other is the token.

Create Key and Token

1. Create the API Key by going to this URL https://trello.com/app-key

2. Click the Token link on the key page, this should be created using an integration user since the user will sign in and grant the access.

3. Copy both Key and Token

Store the values as Variables

1. In iHub click Variables

2. Click Add variable and enter TRELLO_KEY as name and the KEY copied earlier as value

3. Click Add variable and enter TRELLO_TOKEN as name and the TOKEN copied earlier as value