dspy-langtrace
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
| Component | Details captured |
|---|---|
| LM calls | Prompts, responses, token counts, cost, latency |
| Retrievals | Queries, retrieved passages, scores |
| Module executions | Input/output per dspy.Module.forward() call |
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