voice-agents

Open source voice AI platform. Self-hosted alternative to Vapi and Retell. On Prem, BYOK across Speech to Speech or LLM/STT/TTS, with a visual workflow builder, MCP native and telephony support.

Conversational voice AI agents

Rapida is an open-source, end-to-end voice AI orchestration platform for building real-time conversational voice agents with audio streaming, STT, TTS, VAD, multi-channel integration, agent state management, and observability.

Open-source, self-hostable platform for building and operating AI phone agents.

Set of 📝 with 🔗 to help those building Voice AI agents 🎙️🤖

Sayna is a unified Voice Layer for AI Agents with a seemless integration to an existing agentic frameworks

Official one-stop shop for AI Agents and developers building with Telnyx.

A programmable Voice AI platform: SIP and WebRTC call control, multi-party mixing, recording, TTS/STT, and pluggable AI agents (ElevenLabs, VAPI, Pipecat, Deepgram) — all driven through a REST API, webhooks, and a WebSocket event stream

The runtime reliability layer for AI agents.

From-scratch voice agents in Python: end-to-end speech pipelines, runnable chapters, and a small shared library. Local models, explicit streaming behavior.