Direct Leap Technologies supports non-profit communication and campaign efforts, namely phonebank and telemessaging campaigns.
Direct Leap offers APIs for their two main services, Popvox (phonebank campaign technology) and telemessaging services.
Public documentation and more information about this API are unavailable.
Nexmo Verification API allows developers to integrate their applications with the Nexmo Verification services, enabling their users to verify phone numbers directly from their applications. Nexmo is...