LangChain incident
Increased 5XX error rates across all LangSmith endpoints
Affected components
Update timeline
- monitoring Feb 22, 2026, 12:05 AM UTC
Status: Monitoring We have just experienced a ~18 minute period between 3:24-3:42PM PDT of elevated 5XX error rates impacting all endpoints including trace ingestion. Our systems have recovered and we are monitoring closely. Affected components LangSmith Application (Partial outage) LangSmith Deployments Control Plane (Partial outage) LangSmith Billing (Partial outage) LangSmith PromptHub (Partial outage) LangSmith API (Partial outage) LangSmith Run Ingestion (Partial outage)
- monitoring Feb 22, 2026, 12:06 AM UTC
Status: Monitoring Systems are operational, and we are monitoring closely. Affected components LangSmith Deployments Control Plane (Operational) LangSmith Billing (Operational) LangSmith PromptHub (Operational) LangSmith API (Operational) LangSmith Run Ingestion (Operational) LangSmith Application (Operational)
- resolved Feb 23, 2026, 12:28 AM UTC
Status: Resolved All services were restored and fully operational on February 21, 2026, at 23:42 UTC. Affected components LangSmith Deployments Control Plane (Operational) LangSmith Billing (Operational) LangSmith PromptHub (Operational) LangSmith API (Operational) LangSmith Run Ingestion (Operational) LangSmith Application (Operational)
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