Tool
LangSmith
LangChain-native tracing, datasets, and prompt hubs
About
LangSmith Observability gives you complete visibility into agent behavior. Trace your preferred framework or integrate LangSmith with any agent stack using our Python, Typescript, Go, or Java SDKs.
Each package solves a different problem. Choose whereyou want to start, then compose the rest ofthestack around it.
See exactly what your agent is doing step by step. Pinpoint the issues hurting latency, cost, and response quality.
Get a real-time view of how your agents are performing. Spot issues early, understand impact, and start triaging. LangSmith monitoring lets you score quality with online evals on the characteristics that matter the most.
Features
- Native tracing for popular agent frameworks and OpenTelemetry
- SDKs for Python, TypeScript, Go, and Java
- Message threading for multi-turn chat interactions
- Cost tracking
- Online LLM-as-judge and code evals
- Tool and agent trajectory monitoring
- Pricing
- Freemium
- Pricing detail
- Developer free; seat-based paid
- Platforms
- Web + SDK
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