NexmoDev 

Official C#/.NET wrapper for the Vonage API. To use it you will need a Vonage account. Sign up for free at vonage.com. For full API documentation refer to developer.vonage.com.

OpenTok is an API from TokBox that enables websites to weave live group video communication into their online experience.

Official C#/.NET wrapper for the Vonage API. To use it you will need a Vonage account. Sign up for free at vonage.com. For full API documentation refer to developer.vonage.com.

This is a utility package for generating JWTs for the Vonage APIs https://developer.nexmo.com/concepts/guides/authentication#json-web-tokens-jwt

Middleware library for handling dependency injection of the VonageClient as well as facilitating the handling of webhooks along asp.net routes