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Listed in AI Agent Infrastructure with 10 other toolsPart of 731+ curated AI tools on AISO
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LangSmith

LLMOps platform for debugging and monitoring LLM apps.

★★★★½
4.6(890 reviews)
freemiumView full pricing →

Visit LangSmith

https://smith.langchain.com

💰 View Detailed Pricing →Try LangSmith →

About LangSmith

LLMOps platform by LangChain for debugging, testing, evaluating, and monitoring LLM applications. LangSmith provides full trace visibility into complex chains, agents, and RAG pipelines built with LangChain or any framework.

Key Features

✓Full trace visualization for chains and agents
✓Prompt hub and versioning
✓Evaluation datasets and automated tests
✓Production monitoring
✓Dataset curation

LangSmith Pros & Cons

✅ Pros

  • +Native LangChain integration — zero extra code if you use LangChain
  • +Best-in-class tracing for complex multi-step chains
  • +Evaluation framework helps catch regressions before shipping

⚠️ Cons

  • −Most valuable when you use LangChain (less relevant otherwise)
  • −Free tier limits retention

Who Is LangSmith Best For?

👤LangChain developers
👤AI engineers building RAG pipelines
👤Teams needing systematic prompt evaluation

Tags

LLMOpsLangChainAI debuggingprompt evaluationRAG monitoring
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Helicone

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Most popular LLM application framework — 90K GitHub stars, chains, agents & memory

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