This is the core package of the Langfuse JS SDK containing the public API client, logger, utilities, and more.
| Package | NPM | Description | Environments | 
|---|---|---|---|
| @langfuse/client | Langfuse API client for universal JavaScript environments | Universal JS | |
| @langfuse/tracing | Langfuse instrumentation methods based on OpenTelemetry | Node.js 20+ | |
| @langfuse/otel | Langfuse OpenTelemetry export helpers | Node.js 20+ | |
| @langfuse/openai | Langfuse integration for OpenAI SDK | Universal JS | |
| @langfuse/langchain | Langfuse integration for LangChain | Universal JS |