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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 10.6k 963

  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 94 88

Repositories

Showing 10 of 15 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 94 MIT 88 7 13 Updated Apr 23, 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 10,628 963 238 (13 issues need help) 53 Updated Apr 23, 2025
  • langfuse-k8s Public

    Community-maintained Kubernetes config and Helm chart for Langfuse

    Smarty 97 MIT 60 7 3 Updated Apr 22, 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 163 MIT 126 1 22 Updated Apr 22, 2025
  • langfuse-examples Public

    Examples on how to deploy and use Langfuse

    Java 1 MIT 0 0 0 Updated Apr 16, 2025
  • langfuse-terraform-gcp Public

    🪢 Terraform module to deploy Langfuse on GCP

    HCL 5 MIT 0 0 0 Updated Apr 16, 2025
  • langfuse-terraform-aws Public

    🪢 Terraform module to deploy Langfuse on AWS

    HCL 5 MIT 2 0 0 Updated Apr 16, 2025
  • langfuse-js Public

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

    TypeScript 51 MIT 46 1 21 Updated Apr 15, 2025
  • langfuse-api-reference Public
    HTML 2 MIT 2 0 0 Updated Apr 14, 2025
  • langfuse-java Public

    🪢 Auto-generated Java Client for Langfuse API

    Java 9 MIT 1 2 0 Updated Mar 27, 2025
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