CheckUpstream measured LangSmith at 100.000% availability across 2033 independent checks (global · api). 16 incidents were recorded in the past 12 months; the most recent resolved 5 days ago after 38 minutes. Status signals are polled from LangSmith's official incident.io status page, alongside independent probes and community reports.
Share of our own checks against LangSmith endpoints that returned LangSmith's expected response. Evidence that their API edge is answering correctly — not that every product behind it works.
Vendor disclosed: 6 incidents · 359 of 365 days with none posted · 5h 46m of declared impact
Fewer incidents in the last 30 days than 17% of 232 tracked services.
Share of each window with no impact declared by LangSmith
7d
99.736%
30d
99.197%
90d
99.732%
180d
99.866%
1y
99.934%
Downtime like this can be refundable
If you're a paying LangSmith customer, outages in these windows may count against LangSmith's SLA — vendors owe service credits for missed uptime targets, but only if you file inside the deadline. CheckUpstream tracks the entitlement, drafts the claim, and hands you the filing link.
A LangSmith outage only matters if something you ship depends on it. Point us at a public repository and we will read its dependencies and tell you — no account, nothing stored.
Time to resolve, from LangSmith's own incident posts (1 year)
Median time to resolve
1h
Slowest 10% take longer than
6h 34m
From 6 incidents LangSmith published and resolved in the last 1 year, measured between their own start and resolution times. It describes how long LangSmith takes to close an incident they have acknowledged — not how often they have them, and not how available they were.
GitHub READMEs, GitLab, MDX docs — links to the live reliability page.
Frequently Asked Questions
›Is LangSmith currently down?
LangSmith is currently Operational. CheckUpstream tracks LangSmith in real-time across the official status page, RSS / Atom feeds, and community telemetry. Refresh this page for the latest reading.
›When did LangSmith last have an outage?
LangSmith's last resolved incident started 5 days ago and lasted 38 minutes (a partial outage).
Agent tool calls failing on Anthropic Claude models
Minor
Aug 5, 15:27 UTC · resolved in 6h 34m · Resolved
High latencies and increased rate of 500s for analytical queries (stats and dashboards) in LangSmith
Major
Aug 3, 18:20 UTC · resolved in 59m · Resolved
›What's LangSmith's 30-day uptime?
LangSmith's 30-day measured availability is 100.000%, from CheckUpstream's own probes against LangSmith endpoints. It is the share of checks that returned the expected response, not a figure taken from LangSmith's status page.
›How do I monitor LangSmith in production?
Sign up to CheckUpstream and add LangSmith to a watchlist. We send incident alerts via Slack, email, webhook, or PagerDuty within seconds of detection, covering both the official status page and community signals (HN, Reddit, Bluesky, Cloudflare Radar).
›How does CheckUpstream track LangSmith?
We poll LangSmith's official status page on a 1-5 minute cadence, parse its RSS / Atom feed as a fallback, ingest community signals from social platforms, and aggregate per-org SDK telemetry. Multiple sources reduce false positives versus any single feed alone.