Welcome to Speechmatics

Enterprise-grade APIs for speech-to-text, text-to-speech, and voice AI agents.

What is Speechmatics?

Speechmatics is a developer platform for integrating powerful speech-to-text and conversational voice AI solutions into your applications and workflows. We handle the underlying voice technology infrastructure, so you can focus on building seamless voice experiences.

With Speechmatics, you can:

• Receive immediate and continuous text transcriptions from live audio streams or calls (real-time transcription)
• Generate complete transcripts from recorded audio files (batch transcription)
• Build and power your applications with responsive, real-time, voice AI using our Voice SDK
• Transform your text into speech using our Text-to-Speech API
• Choose flexible deployment options: use our managed SaaS platform or host Speechmatics APIs within your infrastructure (on-prem)

Developer quickstart

Transcribe in real-time

Instantly convert streaming audio to text with Realtime processing

Transcribe a file

Use Batch processing to accurately turn your audio files into text

Build a voice agent

Use our Voice SDK to build voice agents with ease

Generate speech from text

Use our TTS API to generate speech from text

Most popular

On-prem deployment

Host our APIs in your environment, ensuring complete data privacy, infrastructure control, and straightforward integration into existing developer workflows and technology stacks

Visit the portal

Create API keys, manage billing, explore transcription tools, and build voice AI agents in our web platform.

API reference

Explore our API reference. Available for: Realtime transcription, Batch transcription, Voice agents – Flow

Core CPU container

Run our APIs locally, optimizing for low resource usage and data privacy. Ideal for battery-sensitive devices or secure environments, enabling high performance without cloud dependence.

On device deploymentComing soon

Run our APIs locally, optimizing for low resource usage and data privacy. Ideal for battery-sensitive devices or secure environments, enabling high performance without cloud dependence.

Start building

Voice agent app

Build your own responsive voice agent with our Voice SDK

Realtime transcription with NextJSComing soon

Learn to transcribe microphone audio in real-time with NextJS and our API