VoiceBlender

Programmable voice AI platform for SIP/WebRTC call control, multi-party mixing, and pluggable AI voice agents.

PlatformWebfreeglobal

VoiceBlender is a programmable voice AI platform written in Go that handles SIP and WebRTC call control, multi-party audio mixing, recording, and TTS/STT, including WhatsApp Business Calling support, all driven through a REST API, webhooks, and a WebSocket event stream. It plugs into AI voice agent providers such as ElevenLabs, VAPI, Pipecat, and Deepgram, aimed at developers building voice AI or telephony applications without stitching together separate vendors themselves.

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