Voice AIOpen Source✦ Free Tier

Pipecat

Open-source framework for real-time voice and multimodal AI agents

5,000 stars● Health 80/100 — Active· commit recency (40 pts) · star momentum (30 pts) · issue ratio (20 pts) · forks (10 pts)App Infrastructure

About

Python framework for building real-time voice and multimodal conversational agents. Handles the full low-latency pipeline — STT → LLM → TTS — with 40+ provider integrations. The most developer-friendly OSS option for building production voice agents where you need code-level control.

Choose Pipecat when…

  • You want code-level control over your full voice agent pipeline
  • You're building real-time multimodal agents that handle voice and vision together
  • You need to mix and match STT, LLM, and TTS providers freely

Builder Slot

How does your AI speak and listen?Optional for most stacks

Speech synthesis and recognition APIs — text-to-speech, speech-to-text, and real-time audio intelligence

Dev Tools
Not applicable
App Infra
Optional
Hybrid
Optional

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Integrates with (2)

DeepgramVoice AI

Pipecat ships a Deepgram STT service that streams audio frames in and transcribed text out as a pipeline node.

Drop Deepgram STT into a Pipecat voice agent pipeline with a single service binding.

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ElevenLabsVoice AI

Pipecat ships an ElevenLabs TTS service that turns the model's text output into streaming audio frames for the user.

Drop ElevenLabs TTS into a Pipecat voice agent pipeline with a single service binding.

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Alternatives to consider (2)

Pricing

✦ Free tier available

Recent Activity

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In 1 stack

Ruled out by 1 stack

Voice AI Pipeline
OSS frame-based pipeline for teams who need code-level control over the STT→LLM→TTS loop — graduate to it when Vapi's abstractions become a ceiling

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