LangSmith
Tracing, evaluation, and deployment for LLM apps and agents, from the LangChain team. · LangChain · Observability
Overview
LangSmith works with or without LangChain. The free Developer plan covers one person.
Good fit
Use when a solo developer wants tracing and evals for an LLM app.
- solo developers
- agent debugging
Not a fit
Avoid if you need several seats for free.
- teams
Quickstart · 3 steps
- Sign up at smith.langchain.com.
- Create an API key.
- Set the LangSmith environment variables in your app.
Other free observability options
Free tierWhat you get freeRiskCard
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