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Langfuse

Open source LLM engineering platform. Debug, analyze and iterate together.
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Langfuse is an open source LLM engineering platform. It helps teams collaboratively develop, monitor, evaluate, and debug AI applications. Langfuse can be self-hosted in minutes and is battle-tested.

Langfuse Overview Video

Learn more

See the langfuse/langfuse readme and docs for more details.

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  1. langfuse Public

    🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

    TypeScript 9.2k 847

  2. langfuse-docs Public

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    Jupyter Notebook 88 80

Repositories

Showing 10 of 13 repositories
  • langfuse-docs Public

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    Jupyter Notebook 88 MIT 80 4 10 Updated Mar 9, 2025
  • langfuse Public

    🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

    TypeScript 9,200 847 196 (13 issues need help) 42 Updated Mar 7, 2025
  • langfuse-k8s Public

    Community-maintained Kubernetes config and Helm chart for Langfuse

    Smarty 85 MIT 51 6 3 Updated Mar 7, 2025
  • langfuse-examples Public

    Examples on how to deploy and use Langfuse

    Java 0 MIT 0 0 1 Updated Mar 7, 2025
  • langfuse-js Public

    🪢 Langfuse JS/TS SDKs - Instrument your LLM app and get detailed tracing/observability. Works with any LLM or framework

    TypeScript 44 MIT 42 1 14 Updated Mar 7, 2025
  • langfuse-python Public

    🪢 Langfuse Python SDK - Instrument your LLM app with decorators or low-level SDK and get detailed tracing/observability. Works with any LLM or framework

    Python 144 MIT 120 1 16 Updated Mar 6, 2025
  • langfuse-java Public

    🪢 Auto-generated Java Client for Langfuse API

    Java 3 MIT 0 0 0 Updated Mar 5, 2025
  • langfuse-vercel-ai-nextjs-example Public
    TypeScript 4 4 0 0 Updated Mar 4, 2025
  • mcp-server-langfuse Public

    Model Context Protocol (MCP) Server for Langfuse Prompt Management. This server allows you to access and manage your Langfuse prompts through the Model Context Protocol.

    TypeScript 18 MIT 3 0 2 Updated Feb 16, 2025
  • oss-llmops-stack Public

    Modular, open source LLMOps stack that separates concerns: LiteLLM unifies LLM APIs, manages routing and cost controls, and ensures high-availability, while Langfuse focuses on detailed observability, prompt versioning, and performance evaluations.

    86 MIT 3 1 0 Updated Feb 15, 2025
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