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Add Messaging, Voice, and Authentication to your apps with Nexmo APIs

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OpenTok Tools

Use these tools to improve your OpenTok experience.

You can jump into any of our tools to start:

OpenTok Playground

A tool for exploring OpenTok platform capabilities.


A post-call diagnostic tool for your OpenTok sessions.

Pre-call Test

A tool to test connectivity, expected call quality, client hardware, and software.

Archive Inspector (beta)

A diagnostic tool for OpenTok archiving.

GraphiQL Explorer (beta)

An online tool that allows you to explore the Insights API, construct queries, and run them from the browser.