317ad905_a__Data_APIs___ProgrammableWeb__Category
[API Name] Ringcaptcha [Description] Ringcaptcha is a service that brings phone-based verification to any website and mobile application. Ringcaptcha can be used for authentication, marketing, verifying ownership, and more. The... [Updated] 07.03.2013 [Category] 
Security
Cloud, Big Data, Data APIs | ProgrammableWeb