LangSmith
Debug, evaluate, and monitor LLM apps built with LangChain.
Best use cases
• LLM observability
• Prompt debugging
• Chain and agent tracing
• LLM evaluation
• Production monitoring
Pros
• Deep LangChain integration
• Clear prompt and trace visualization
• Built-in evaluation tools
• Useful for agent-based systems
• Actively developed
Cons
• Best suited for LangChain users
• Limited value outside LLM workflows
• Paid plans required for production scale
Pricing
freemium
Free tier available + paid plans for teams and production usage
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