assemblyai-node-sdk and assemblyai-java-sdk
These are ecosystem siblings—language-specific SDK implementations that provide identical interfaces to the same AssemblyAI API backend, allowing developers to choose based on their tech stack (JavaScript/Node.js vs. Java) rather than competing functionality.
About assemblyai-node-sdk
AssemblyAI/assemblyai-node-sdk
The AssemblyAI JavaScript SDK provides an easy-to-use interface for interacting with the AssemblyAI API, which supports async and real-time transcription, audio intelligence models, as well as the latest LeMUR models.
Built in TypeScript with full type exports, the SDK supports multiple runtime environments beyond Node.js and provides tree-shakeable UMD builds for browser and CDN usage. It handles both async and streaming transcription workflows with automatic polling, plus granular speech understanding features like speaker diarization, language detection, and subtitle generation in SRT/VTT formats.
About assemblyai-java-sdk
AssemblyAI/assemblyai-java-sdk
The AssemblyAI Java SDK provides an easy-to-use interface for interacting with the AssemblyAI API, which supports async and real-time transcription, audio intelligence models, as well as the latest LeMUR models.
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