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Framework
VoiceBlender
Open-source voice AI platform for phone and web calls, driven by a REST API.
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is VoiceBlender?
VoiceBlender is a programmable voice AI platform. It handles SIP and WebRTC call control, multi-party mixing, recording, text-to-speech and speech-to-text, and lets you plug in AI voice agents from providers such as ElevenLabs, Vapi, Pipecat and Deepgram. Everything is controlled through a REST API, webhooks and a WebSocket event stream. It is written in Go and open source under the MIT licence.
Pros
- Phone and web calls plus AI agents in one platform
- Works with several voice AI providers
- Free and open source (MIT)
Cons
- You run it yourself
- Needs your own telephony and AI provider accounts
Who should use VoiceBlender
Developers building AI phone agents, call centres or voice apps who want control of the stack.
Who may not need it
Non-developers looking for a ready-made voice assistant.
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