Langtrace — Open-Source LLM Observability for DSPy

Guide the user through setting up Langtrace for automatic DSPy tracing and observability.

What is Langtrace

Langtrace is an open-source LLM observability platform with first-class DSPy auto-instrumentation. One line of code traces all DSPy LM calls, retrievals, module executions, token counts, and cost — no manual decorators needed.

• Cloud: Managed at app.langtrace.ai
• Self-hosted: Run your own instance with Docker
• Open source: github.com/Scale3-Labs/langtrace

What gets traced automatically