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IntegrationsLangfuse

Langfuse

Langfuse  is an open-source LLM observability platform. Integrating Langfuse with auxilia allows you to trace agent executions, monitor token usage, and debug tool calls.

This integration is planned and not yet available. This page documents the intended setup.

What Langfuse Provides

  • Tracing — See the full execution flow of each agent interaction, including LLM calls, tool invocations, and response times
  • Cost tracking — Monitor token usage and estimated costs per agent, user, or thread
  • Evaluation — Score and annotate agent responses for quality monitoring
  • Prompt management — Version and manage system prompts centrally

Planned Configuration

The integration will use the LangChain callback handler for Langfuse. Configuration will be done via environment variables:

LANGFUSE_PUBLIC_KEY=pk-...
LANGFUSE_SECRET_KEY=sk-...
LANGFUSE_HOST=https://cloud.langfuse.com  # or self-hosted URL

Self-Hosted Langfuse

Langfuse can be self-hosted alongside auxilia for full data control. See the Langfuse self-hosting guide  for setup instructions.

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