ddalcu / mlx-serve

Native macOS and Apple Silicon inference server exposing OpenAI, Anthropic and Ollama APIs, with a Swift app, written in Zig.

agentscope-ai / agentscope

Build and run agents you can see, understand and trust.

QwenAudio / qwen-audio-agent

A realtime voice runtime that keeps Agents talking, working, and present. Real-time Voice Runtime for AI Agents

Goekdeniz-Guelmez / JOSIE-Voice

JOSIE Voice: a real-time, on-device voice assistant for Apple Silicon. Download the macOS app (DMG) from Releases.

C4rohan / Lampline

Build AI phone agents on your own computer and test every change with an AI caller. Open source, runs free with no API keys, cents per call with your own keys. Imports Dialogflow CX.

xzf-thu / VoiceMem

Infrastructure for the next generation of voice agents, designed to provide universal memory. It is divided into a left brain and a right brain, storing information and emotions respectively, while a fully streaming architecture eliminates latency at the fundamental level.

rasonyang / ai-native-callcenter

Self-hosted AI call center: AI talks, code controls the call. AI agents answer every call; humans take over without dropping it. Runs on FreeSWITCH with your SIP trunk and realtime model (OpenAI, Grok, Qwen, Doubao, or any compatible gateway). API-first, with a built-in agent desktop.

dograh-hq / dograh

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.

TEN-framework / ten-vad

Voice Activity Detector (VAD) : low-latency, high-performance and lightweight

hkjarral / AVA-AI-Voice-Agent-for-Asterisk

An open-source AI Voice Agent that integrates with Asterisk/FreePBX using Audiosocket/RTP/Websocket technology https://demo.agent6789.com

PatterAI / Patter

Open-source voice-AI SDK. The Vapi/Retell alternative for builders who want to own the stack. Give your AI agent a phone number in 4 lines — Python and TypeScript, MIT licensed, Twilio, Telnyx, and Plivo.

bolna-ai / bolna

Conversational voice AI agents

TheSmokeDev / hermes-talk

Hermes Talk: realtime duplex voice for Hermes Agent. Rides your ChatGPT or X Premium subscription, no API key needed. OpenAI, Grok, Gemini. Terminal, Discord, dashboard.

wiringai / mod_earshot

FreeSWITCH module that streams live call audio to AI voice agents over WebSocket and plays their voice back — full-duplex.

restsend / rustpbx

A PBX written by rust

rapidaai / voice-ai

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.

Deuz-AI / Deuz-SDK

TypeScript AI SDK and agent framework with zero dependencies. Build production AI agents and multi-agent swarms: durable execution, long-term memory, hybrid RAG, MCP client/server, A2A, human-in-the-loop approvals, CodeAct sandboxes, realtime voice. One streaming API, 29 providers: Claude, GPT, Gemini, Grok, DeepSeek, Ollama. Node, Bun, Deno, edge.

raullenchai / esp32-thinks

A multi-model Muse: personal AI voice assistant on ESP32 - wake word or knob, any OpenAI-compatible brain (STT/chat/TTS mix-and-match), streaming replies, out of the box. Built on muse-gadget-sdk.

rasonyang / cascade-realtime-gateway

Self-hosted voice gateway in Go that speaks the OpenAI Realtime (GA) WebSocket protocol and runs a cascaded ASR → LLM → TTS pipeline behind it. Keep clients unchanged while swapping speech and LLM providers at runtime

cgoinglove / thursday-agent

Talk, and a team of bots does the work in a real browser, a shell and your files while she keeps talking. Open source, runs on your machine, on your ChatGPT plan or an OpenAI key. npx thursday-agent

arbazsiddiqui / voxlock

The best performing voice isolator there is. Keeps the caller's voice and removes the other voices in the room before speech-to-text hears them. Open source, streaming, runs on CPU and in the browser. pip install voxlock

mahdidavoodi7 / expo-thinking-orbs

AI thinking indicators and a voice-agent orb for React Native and Expo. Six dotted loading animations plus an audio-reactive voice orb, on the UI thread with Skia + Reanimated. Port of Jakub Antalik's thinking-orbs.

toprmrproducer / rapidx-voice-agent-stack

Self-hosted AI voice agent at ₹0.85/min (~0.9¢/min) for the AI voice pipeline. Dograh + VoBiz + Deepgram + Groq + Rumik Silk, with setup scripts, dashboard, prompt stack, and real phone-call deployment.

gonzalo-cordova-pou / voice-ai-benchmarks

A directory of benchmarks for the components and complete systems used to build voice agents.

vvtech-ai / PhoneAgent

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DINAKAR-S / voice-agent-starter-kit

Self-hosted multilingual (English + 5 Indic) phone voice agent template - LiveKit Agents + Sarvam STT/TTS + OpenAI + Vobiz SIP. ~700ms-1.2s latency, under Rs 5.5/min. Demo: a real-estate site-visit booking agent.