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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 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 22.6k 2.3k

  2. langfuse-docs 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

    MDX 174 187

Repositories

Showing 10 of 18 repositories
  • 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

    langfuse/langfuse’s past year of commit activity
    TypeScript 22,575 2,252 318 (3 issues need help) 239 Updated Mar 3, 2026
  • 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

    langfuse/langfuse-docs’s past year of commit activity
    MDX 174 MIT 187 19 49 Updated Mar 3, 2026
  • langfuse-terraform-aws Public

    🪢 Terraform module to deploy Langfuse on AWS

    langfuse/langfuse-terraform-aws’s past year of commit activity
    HCL 49 MIT 31 13 0 Updated Mar 3, 2026
  • langfuse-js Public

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

    langfuse/langfuse-js’s past year of commit activity
    TypeScript 116 78 2 9 Updated Mar 2, 2026
  • langfuse-k8s Public

    Community-maintained Kubernetes config and Helm chart for Langfuse

    langfuse/langfuse-k8s’s past year of commit activity
    Go Template 223 MIT 132 28 12 Updated Mar 2, 2026
  • 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

    langfuse/langfuse-python’s past year of commit activity
    Python 354 MIT 244 2 23 Updated Mar 2, 2026
  • langfuse-cli Public

    use the langfuse API from your CLI

    langfuse/langfuse-cli’s past year of commit activity
    TypeScript 13 4 0 1 Updated Feb 27, 2026
  • langfuse-java Public

    🪢 Auto-generated Java Client for Langfuse API

    langfuse/langfuse-java’s past year of commit activity
    Java 51 MIT 8 7 0 Updated Feb 26, 2026
  • skills Public

    Agent Skills for Langfuse, the open source LLM engineering platform for tracing, prompt management, and evaluation

    langfuse/skills’s past year of commit activity
    Python 14 MIT 1 1 0 Updated Feb 24, 2026
  • langfuse-examples Public

    Examples on how to deploy and use Langfuse

    langfuse/langfuse-examples’s past year of commit activity
    TypeScript 21 MIT 13 2 4 Updated Feb 24, 2026
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