pipecat

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.

The spend meter, cost/margin, & budget gate for AI voice agents. Meters STT + TTS + LLM + telephony per call, out of the box (Pipecat, LiveKit — Python & TypeScript). Hard-stops the next turn before it crosses your ceiling. Local, no account, no telemetry. Built by Floe.

Your personal voice interface for any app. Speak naturally and your words appear wherever your cursor is, with fully customizable AI voice dictation. Open source alternative to Wispr Flow.

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

Build Agentic AI solutions on AWS, using latest OSS Agentic Frameworks.

Addressee detection for voice agents: device-directed speech detection that runs before STT, so background speech, side conversations, and the agent's own TTS echo never trigger it. No wake word, model-agnostic, drop-in for LiveKit, Pipecat, ElevenLabs, Twilio, and OpenAI. The layer your VAD and turn detection are missing.

Self-hosted native-Rust runtime for real-time voice agents. Own the stack: one binary in your own VPC or air-gapped, no hosted control plane. pipecat-compatible pipeline, in-process SIP/RTP, single-process call density. Apache-2.0.

Fully autonomous speaking bots built using the MeetingBaas API and Pipecat.

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

This repository shows you how to build real-time, voice-enabled AI agents with Pipecat and Amazon Bedrock

Open-source observability and session replay for Pipecat voice agents. Replay conversation audio alongside OpenTelemetry traces, logs, per-stage latency, and interruption metrics.

A personal voice assistant with a wake word, swappable LLMs (gpt 5.5, opus 4.8, etc), and configurable tools (web search, email, calendar, etc).

Telephony Server is a powerful bridge that connects telephony providers (Twilio, Vonage, Plivo, etc.) with real-time communication platforms (LiveKit, Jay.so, Pipecat, etc.). It enables seamless call routing, robust metrics collection, and observability features for enhanced telephony operations.

Add persistent memory to Pipecat voice AI agents

Core engine behind Calibrate, a framework for evaluating AI agents: speech-to-text, text-to-speech, LLM evaluation, end-to-end simulations

Set of 📝 with 🔗 to improve the voice - natural and intelligible

Make any web app voice-controllable in 37 languages. Drop-in widget + open-source agent server — visitors speak, the agent talks back and drives their browser in real time.

Voice-first AI agent with persistent memory, background reflection, and hierarchical summarization.

An AI voice agent to help you call your political representatives.

Full-duplex voice agent on Pipecat — adaptive barge-in, Fish Audio prosody, A2A streaming, delivery-policy inbox, session-open memory.