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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 10k 913

  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 90 87

Repositories

Showing 10 of 14 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 90 MIT 87 5 8 Updated Apr 2, 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 9,988 913 219 (13 issues need help) 51 Updated Apr 1, 2025
  • langfuse-js Public

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

    TypeScript 47 MIT 43 1 21 Updated Mar 31, 2025
  • langfuse-terraform-aws Public

    🪢 Terraform module to deploy Langfuse on AWS

    HCL 1 MIT 0 0 0 Updated Mar 28, 2025
  • langfuse-java Public

    🪢 Auto-generated Java Client for Langfuse API

    Java 8 MIT 1 1 0 Updated Mar 27, 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 155 MIT 124 1 19 Updated Mar 26, 2025
  • langfuse-examples Public

    Examples on how to deploy and use Langfuse

    Java 1 MIT 0 0 0 Updated Mar 25, 2025
  • langfuse-k8s Public

    Community-maintained Kubernetes config and Helm chart for Langfuse

    Smarty 92 MIT 57 9 3 Updated Mar 24, 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 39 MIT 6 1 2 Updated Feb 16, 2025
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