UPDATE (as of June 29th. 2016): Moz integration is now included with Pitchbox, regardless if you have an API key! When you set up your campaign, you will be able to filter by (type of metrics) as well as display those metrics in your campaign results.
Go to Settings > Integrations to access the Integrations page:
Make sure to check Display Metrics in order to view metrics from Moz for your outreach opportunities. The Moz integration metrics are enabled by default.
You'll be able to run Moz Competitor Backlinks and URL Backlinks campaigns directly within Pitchbox
You'll also be able to filter by Moz metrics during campaign setup: