Setting Up Google Recaptcha in Fresh Store Instant (FSB)
You will need to enter your keys under Tools - Change Parameters - Tags,Keys&Code tab as shown below
How to Generate Google reCAPTCHA Keys
Visit this page https://www.google.com/recaptcha/admin
The images below show the keys you will need to generate
Once you click Register, you will be given the set of keys you will need to enter in your freshadmin store settings for every store you are running.