How to generate Trello API key/token

First example

1. Authorize on the https://trello.com/
2. Navigate to the https://trello.com/app-key 
3. Copy the API Key and paste it into the 'API Key' field
4. Click on the Token link to generate an API Token
5. Push the "Allow" button 
   
6. Copy the Token and paste it into the 'API Token' field 

Second example

1. Authorize on the https://trello.com/
2. Visit https://trello.com/power-ups/admin/
3. Click on 'New'
   
4. Fill in the required fields: Integration Name, Email, Support, and Name
5. Select the appropriate Trello instance
6. Click on 'Create'
   
7. Navigate to 'API Key' and click on 'Generate'
   
8. Copy the API Key and paste it into the 'API Key' field
   
9. Next to the API Key description, there's a link to the token
10. Click on the Token link to generate an API Token
11. Push the "Allow" button 
    
12. Copy the API Token to the API token field
     
13. Copy the Token and paste it into the 'API Token' field