Observability Agent Infrastructure Durable Execution Orchestration

LangSmith Engine

Tracing and evaluation for LLM applications

LangChain's hosted platform for tracing, debugging, evaluation, and monitoring of LLM applications. This record tentatively maps the exact target name "LangSmith Engine" to the public LangSmith product because accessible first-party sources did not independently verify the "Engine" suffix.

Recent stories

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newsSECONDARY2026-05-13

LangChain launches SmithDB, LangSmith Engine, and Sandboxes at Interrupt

LangChain unveiled SmithDB, LangSmith Engine, Managed Deep Agents, and GA sandboxes at Interrupt. The stack gives agent teams a purpose-built trace database, autonomous failure triage, and managed execution environments for production workflows.