langsmith
LangChain's platform for tracing, evaluating, and monitoring LLM applications — deep integration with LangChain/LangGraph plus a REST API for any stack.
- Score
- 98.0052 signals
- Evidence
- 1,043 stars · 288 forks
- Last commit
- as last read from GitHub; most reads are from 2 Sep 2026 or later
- Listed
Install
No one-command install. Set it up from its source.
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What it is
LangChain's platform for tracing, evaluating, and monitoring LLM applications — deep integration with LangChain/LangGraph plus a REST API for any stack.
When to use it
Use LangSmith when you need LLM/agent observability, tracing, or monitoring in your pipeline.
Notes
Listed from Armory's observability-tools list.