Обзор
Langfuse helps teams develop and operate LLM applications collaboratively. It records traces for model calls, retrieval, embeddings, agent actions, and other application logic; supports prompt versioning and experimentation; and provides multiple evaluation workflows. The repository is primarily TypeScript and is not archived.
Основные функции
- LLM application tracing and observability for model calls, retrieval, embeddings, agent actions, logs, and sessions
- Central prompt management, version control, collaboration, and caching
- LLM-as-a-judge, code evaluators, user feedback, manual labeling, and custom evaluation pipelines
- Datasets for test sets, benchmarks, experiments, and pre-deployment testing
- Playground for iterating on prompts and model configurations
- Public API with an OpenAPI specification, Postman collection, and Python and JavaScript/TypeScript SDKs
- Managed Langfuse Cloud and self-hosted deployment options
- Integrations with OpenTelemetry, OpenAI SDK, LangChain, LlamaIndex, Haystack, LiteLLM, Vercel AI SDK, Mastra, and other AI tooling
Требования, установка и быстрый старт
Использование
Совместимость моделей и варианты использования
The quick start demonstrates OpenAI with `gpt-4o`. The repository also states integration support for LiteLLM, including Azure, OpenAI, Cohere, Anthropic, Ollama, vLLM, SageMaker, Hugging Face, and Replicate, as well as Amazon Bedrock. Langfuse is model-observability infrastructure rather than a model itself. An exhaustive validated model list is not stated in the repository metadata.
Лицензия и примечания о рисках
Repository metadata reports the SPDX value as NOASSERTION and does not provide a license URL. The supplied README says the repository is MIT licensed except for `ee` folders and directs readers to https://github.com/langfuse/langfuse/blob/main/LICENSE and https://langfuse.com/docs/open-source. Review those terms, especially the exceptions, before deployment or redistribution.
Релиз и сопровождение
No specific release version or release notes are included in the supplied record. The repository default branch is `main`, and the metadata reports the last push at 2026-08-03T09:35:12Z. The project changelog is available at https://langfuse.com/changelog.