Make sure this is the correct WordPress connector for the environment you are connecting to.
WordPress.com uses authentication that doesnt require the use of 3rd party plugins and is primarily used for WordPress hosted sites rather than self-hosted. For self-hosted sites view the WordPress guide.
To set up authentication you will need to make an application within the WordPress applications manager. When filling in the fields make sure to put your Cyclr callback URL into the 'Redirect URLs' field. - Your Cyclr callback URL can be found in your Cyclr console under Settings > General Settings > Service Domain.
Once created you will have access to your Client ID and Secret.
Setup your WordPress.com Connector within Cyclr:
Go to your Cyclr Console
Click the Connectors menu along the top
Choose Connector Library
Select the WordPress.com Connector
Click the Setup button
The Connector now can be installed using the credentials obtained in the above step:
Client ID: WordPress.com Client ID
Secret: WordPress.com Client Secret
Domain: Your WordPress.com Domain
Your WordPress.com Connector is now setup! You can test it by installing it in one of your Cyclr accounts and executing one of the methods to confirm it can return some data.