Resolved after 35 minutes, affecting LangSmith LLM Gateway, on October 8, 2026.
From 07:08 to 07:43 UTC on October 8, 2026, the LLM Gateway (gateway.smith.langchain.com: http://gateway.smith.langchain.com) returned high 502 error rates. It was due to an incorrect infrastructure configuration change that stopped traffic from reaching the gateway. We fully restored the service at 07:43 UTC, and no other LangSmith services were affected. We're sorry for the disruption.
Affected components
Update timeline
- investigating Oct 08, 2026, 07:08 AM UTC
The LLM Gateway (gateway.smith.langchain.com: http://gateway.smith.langchain.com) is returning an elevated rate of 502 errors. We are investigating.
- resolved Oct 08, 2026, 07:43 AM UTC
From 07:08 to 07:43 UTC on October 8, 2026, the LLM Gateway (gateway.smith.langchain.com: http://gateway.smith.langchain.com) returned high 502 error rates. It was due to an incorrect infrastructure configuration change that stopped traffic from reaching the gateway. We fully restored the service at 07:43 UTC, and no other LangSmith services were affected. We're sorry for the disruption.
Your product runs on more than LangChain
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.
Amazon Web Services