assemblyai-node-sdk

Official JS SDK for AssemblyAI transcription and audio intelligence.

💎 Hidden gem★ 77 stars⑂ 23 forksMITupdated 2026-09

▦ visual — this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.

// project facts

Project facts

assemblyai-node-sdk is an open-source audio project by AssemblyAI (AssemblyAI/assemblyai-node-sdk on GitHub). It has 77 GitHub stars and 23 forks, is released under the MIT license, and was last updated on GitHub on 24 September 2026.

Repository: AssemblyAI/assemblyai-node-sdk
GitHub stars: 77
Forks: 23
License: MIT
Last updated on GitHub: 24 September 2026
Category: Audio
Listing: Hidden gem — a shorter page for a lesser-known project
Official site: Official site

// how it works

How it works

Install the SDK
Add it to your Node project.
Add your API key
Configure credentials per the README.
Transcribe audio
Send a file or stream for transcription.
Use intelligence models
Layer summaries and detection on top.

// features

Why people love it

Official SDK

Maintained by AssemblyAI itself.

Async transcription

Batch speech-to-text for files.

Real-time streaming

Live transcription over websockets.

Audio intelligence

Summaries, entities, and more.

TypeScript native

Typed API for Node.js.

MIT licensed

Free to use in your projects.

// run it

Run it yourself

Step 1 — Install the SDK
Add it to your Node project.
```
npm install assemblyai
```
Step 2 — Set your key
Export your AssemblyAI API key.
```
export ASSEMBLYAI_API_KEY=your_key_here
```
Step 3 — Transcribe
Run a transcription script per the README.
```
node transcribe.js audio.mp3
```

// use cases

What you can build

Add transcription to a Node.js app.
Build live captioning with streaming.
Summarize calls with audio intelligence.
Prototype voice features quickly.

// faq

Questions, answered

Who maintains assemblyai-node-sdk?

AssemblyAI itself, at AssemblyAI/assemblyai-node-sdk with 23 forks.

Is it free for commercial use?

The SDK is MIT licensed; API usage follows AssemblyAI pricing.

Does it support real-time?

Yes. It covers both async and real-time transcription.

What are audio intelligence models?

Higher-level models for summaries, entities, sentiment, and more.

Which runtime?

The most-starred other Audio projects in the LibreAI catalogue — the realistic shortlist if assemblyai-node-sdk is not the right fit.

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Get assemblyai-node-sdk

Free and open — grab the source, star the repo, and start creating.

View on GitHub ↗← More Audio tools