Speechmatics

Speechmatics Realtime Transcription API

WebSocket API for low-latency real-time streaming transcription supporting live audio input, speaker diarization, and partial/final transcript events.

GitHub

Documentation

📖
Documentation
https://docs.speechmatics.com/speech-to-text/realtime
📖
APIReference
https://docs.speechmatics.com/api-ref/realtime-transcription-websocket

Other Resources

🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/speechmatics/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: speechmatics:realtime-transcription-api
name: Speechmatics Realtime Transcription API
description: WebSocket API for low-latency real-time streaming transcription supporting live audio input,
  speaker diarization, and partial/final transcript events.
humanURL: https://docs.speechmatics.com/speech-to-text/realtime
baseURL: wss://eu2.rt.speechmatics.com/v2
tags:
- Real-Time Transcription
- WebSocket
- Streaming
- Speech-to-Text
properties:
- type: Documentation
  url: https://docs.speechmatics.com/speech-to-text/realtime
- type: APIReference
  url: https://docs.speechmatics.com/api-ref/realtime-transcription-websocket