Apigee is self-defined as “a website that provides analytics, protection and control for APIs”. That is as good a definition as you could get of the provided service.
Basically, you can understand the usage patterns of your customers while protecting your app from abuses and misuses by scanning threats and creating a complex thread of usage and metering policies along with service tiers. In this way, you can rest assured that your app is not only being used but actually being put to its intended uses.
This service is free to begin with, but a premium plan does exist. This is determined depending on your current traffic volume – if it is over 10,000 API requests/hour then you will have to go for the paid incarnation of Apigee.
The obvious niche for a service provider like this is the immense community of mobile app developers, but in actuality any person or company that depends on APIs is certain to benefit from it. If that definition applies to you, I believe that paying the site a visit won’t be a bad idea. Just address your browser to www.apigee.com in order to get going.
Apigee.com In Their Own Words
“API analytics and management.”
Why Apigee.com It Might Be A Killer
Any person who is into APIs will find the provided set of tools valuable if only because every angle is covered by them.
Some Questions About Apigee.com
How much does the premium service cost? 
