Realtimestt MCP Server

A fast Voice Activity Detection and Transcription System

The short version

RealtimeSTT is a Python speech-to-text library for applications that need voice activity detection, fast transcription, optional realtime text updates, wake words, and direct access to audio streams. It is designed for assistants, dictation tools, browser streaming servers, and prototypes that need to turn speech into text with only a few lines of code.

• Voice activity detection with WebRTC VAD and Silero VAD
• Final and realtime transcription with selectable engines
• Optional wake word activation through Porcupine or OpenWakeWord
• Direct microphone input or application-fed audio chunks
• Event callbacks for recording, VAD, realtime text, transcription, and wake
• A FastAPI browser streaming server example with multi-user session isolation,

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Maintainer setup documentation.