Click on the overview in the left menu then click on NEW PROJECT.
Enter Name, Select the best description, Project name and Enter App name where you get your access keys and tokens and set permissions.
Click on the App name in the left menu then Enable 3rd Party AuthenticationThen, Enter Callback URLs and Website URLs (from your miniOrange social login plugin).
Now go to Keys and Tokens. click on View Keys. Here are your API keys and API Secret key.
Copy your API key and Secret and save them in your miniOrange social login plugin (under client id and client secret field respectively).
Step 2: Set credentials in miniOrange Social Login Plugin
go to miniOrange Social Login Plugin → Click on Configure Apps → click on Twitter:
Paste the API Key and API Secret in your miniOrange social login plugin (under client id and client secret field respectively).
Then click on Save & Test Configuration button.
A notification from the plugin that The test was successful will be shown. That means your Custom app will set properly.
Below Video for Configure Twitter Social Login In Wordpress.