Using Moz's PA/DA metrics in SEO PowerSuite tools couldn't be easier.
1. Get a free Moz API key
If you don't have a Moz account already, take a minute and start a free account here.
Then, on the Moz API page, scroll to the Generate Your API Credentials section, check the 'I agree to the Moz Terms of Service' box and click Generate Secret Key — you'll get an Access ID and Secret Key from Moz immediately.
2. Set your Moz API key in SEO PowerSuite apps
In your SEO PowerSuite app, go to Preferences > Moz API Settings, click Add Key, enter your Access ID and Secret Key and hit OK.
Once you've added the key to the software, check the 'Use Moz DA/PA instead of Google PR' box if you wish SEO PowerSuite to use Page and Domain Authority instead of PageRank to calculate Domain Strength, Keyword Difficulty, Link Penalty Risk, and Link Value and other metrics.
Moz API keys can be either free or paid, with a difference in their speed limitations. A Free license lets you run 1 request every 10 seconds, while a Paid license permits 200 requests/second.
If you have a paid Moz API, make sure to pick the "Paid" license type option when adding your API key to SEO PowerSuite.
If you have several Moz API keys, you can use them in SEO PowerSuite simultaneously by adding the extra keys with the Add button.