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# @langfuse/otel

This is the OTEL package of the Langfuse JS SDK containing the `LangfuseSpanProcessor` to export emitted spans to Langfuse with masking, filtering, and media handling.

## Packages

| Package                                     | NPM                                                                                                               | Description                                               | Environments |
| ------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------- | ------------ |
| [@langfuse/client](./packages/client)       | [![NPM](https://img.shields.io/npm/v/@langfuse/client.svg)](https://www.npmjs.com/package/@langfuse/client)       | Langfuse API client for universal JavaScript environments | Universal JS |
| [@langfuse/tracing](./packages/tracing)     | [![NPM](https://img.shields.io/npm/v/@langfuse/tracing.svg)](https://www.npmjs.com/package/@langfuse/tracing)     | Langfuse instrumentation methods based on OpenTelemetry   | Node.js 20+  |
| [@langfuse/otel](./packages/otel)           | [![NPM](https://img.shields.io/npm/v/@langfuse/otel.svg)](https://www.npmjs.com/package/@langfuse/otel)           | Langfuse OpenTelemetry export helpers                     | Node.js 20+  |
| [@langfuse/openai](./packages/openai)       | [![NPM](https://img.shields.io/npm/v/@langfuse/openai.svg)](https://www.npmjs.com/package/@langfuse/openai)       | Langfuse integration for OpenAI SDK                       | Universal JS |
| [@langfuse/langchain](./packages/langchain) | [![NPM](https://img.shields.io/npm/v/@langfuse/langchain.svg)](https://www.npmjs.com/package/@langfuse/langchain) | Langfuse integration for LangChain                        | Universal JS |

## Documentation

- Docs: https://langfuse.com/docs/sdk/typescript
- Reference: https://js.reference.langfuse.com

## License

[MIT](LICENSE)