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Add Messaging, Voice, and Authentication to your apps with Vonage Communications APIs

Visit the Vonage API Developer Portal

Beta Programs

Help us improve our upcoming releases by testing out pre-release OpenTok features.

Our Beta Programs are a unique way to influence the future of the OpenTok Platform. These features are not complete, but they're very close, and your feedback can help us make them great.

Additional Client SDKs

We are continually expanding the family of OpenTok client SDKs, with additions for macOS and Unity. Contact us if you'd like to participate in these upcoming beta programs.

Contact us

SIP Video

Include video in a SIP calls connected to a Video API session.

See the docs

OpenTok.js beta features

OpenTok.js 2.21.1 includes beta support for Opus DTX, audio output selection, and scalable video in Opera and Chromium-based Edge.

See the release notes

The features and services provided during a Beta are not guaranteed to meet any platform SLOs or SLAs. Vonage reserves the right to not release any Beta services to General Availability. For more details on Beta liability, see our Terms of Use.