Keyword Competition Crusher uses extensive data from SEOmoz. For you to access that data you must add your own API keys. These API keys are free and take 2 minutes to obtain.

Click on the links below to sign up for a free account and get your API keys. You may need to scroll down the API page to see your key information. Copy and paste "Your Access ID" and "Your Secret Key" into the form on the right.

You need do this only once as the program will remember your  keys.
Create Free Account
Get Your API Keys