Voice Assistants

Switchboard Audio SDK

SDK and no-code editor for building real-time voice AI and audio apps across any platform

switchboard.audio

Verified API available Free tier

Quick facts
What is it	SDK and no-code editor for building real-time voice AI and audio apps across any platform
Pricing	Freemium — from $100/mo
Free tier	Yes
Platform	Web Application
API	Yes
Best for	building voice AI assistants and agents, prototyping real-time audio features for mobile, web, or desktop
Domain registered	2022

Data updated Aug. 1, 2026

What does Switchboard Audio SDK do?

Switchboard Audio SDK is a platform for building real-time audio and voice AI software. It combines a C++ SDK with higher-level language bindings and a no-code visual editor, letting developers and non-engineers design, prototype, and deploy audio features across mobile, web, desktop, and hardware devices. The SDK handles the heavy lifting of cross-platform audio processing so you can focus on your application logic.

The platform has two parts. The Switchboard SDK is a C++ core with bindings for languages like Python and JavaScript, plus open source example apps for iOS, Android, Mac, Windows, Linux, and Web that you can remix. The Switchboard Editor (currently in beta) is a drag-and-drop node-based tool for connecting audio and voice tools — both open source and proprietary — into unique combinations and testing them instantly in the browser. Graphs built in the Editor can be deployed to any platform using the SDK. This means you can experiment visually and then ship the same audio pipeline to production.

Switchboard Audio SDK is built for software developers who need to add real-time audio or voice AI to their apps, as well as product managers and R&D teams who want to prototype new features without writing code. Use cases include voice agents, interactive apps, music tools, on-device speech-to-text, and metaverse experiences. The SDK has a free tier, and the Editor is available by request during its closed beta.

AI Audio Editing Text-to-Speech Transcription Voice Assistants

#audio-graph#audio-sdk#cross-platform#no-code-editor#real-time-audio#speech to text#voice ai

Key features

What makes it stand out

C++ core with high-level language bindings for cross-platform deployment

No-code visual editor for prototyping and testing audio graphs in the browser

Open source example apps for iOS, Android, Mac, Windows, Linux, and Web

Supports voice AI, interactive apps, music, and on-device speech-to-text

Graphs designed in the Editor can be deployed to any platform via the SDK

Who is Switchboard Audio SDK for?

Who benefits most from this tool

building voice AI assistants and agents

prototyping real-time audio features for mobile, web, or desktop

designing and testing audio processing pipelines without writing code

Pricing

Free tier available — start without a credit card

Free

10K MAUs
free only nodes
no support
required attribution
Up to 10K MAUs
No support
Free nodes only
Attribution required

Growth

$100.0/month

per 10K increments MAUs
paid nodes available nodes
best-effort email support
Equivalent to $0.01 per MAU per month
Email support
Paid nodes available
No attribution required
Alternative pricing models available with Custom plan

Custom

Flexible pricing models
Custom support
Access all nodes
Special deployments
Enterprise scale

Trust & presence

Domain Domain registered 2022

Gallery

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Switchboard Audio SDK — pricing page — Pricing page

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