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Is Stack AI down right now?

HTTP endpoint monitoring - checked every 5 minutes · How we classify outages

Stack AI is currently operational - 276ms HTTP response. Last checked . 90-day uptime: 99.9%.

Operational276ms response

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Stack AI status

90-day uptime

99.9%

20 incidents (90d)

Response now

276ms

HTTP p50 (7d)

315ms

median ping response

HTTP p95 (7d)

1109ms

tail ping response

Response time (7 days)

p50 315ms·p95 1109ms

HTTP response times from Tickerr's monitoring server to Stack AI's status or homepage endpoint - not API inference latency or time-to-first-token (TTFT). For API benchmark data, see third-party sources like Artificial Analysis.

90-day uptime

Apr 26 100%May 26 99.9%
99.9%
90-day uptime · HTTP + API inference
Feb 28Today
100%99–99.9%95–99% or API failures<95% or major API failures
HTTP pings + API inference checks · checked every 5 min · 90 days

Incident history

Partial OutageResolvedOfficial
May 12, 2026
07:36 PM UTC
Elevated errors for Claude Sonnet 4.6 and Haiku 4.5

Type: Incident Duration: 1 day, 12 hours and 27 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 12, 19:36:38 GMT+0 - Investigating - We are investigating elevated errors on…

1d 0h
Partial OutageResolvedOfficial
May 9, 2026
07:57 AM UTC
Elevated errors on Claude Opus 4.1

Type: Incident Duration: 1 day, 1 hour and 7 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 9, 08:22:13 GMT+0 - Resolved - This incident has been resolved. May 9, 07:57:05…

0m
Partial OutageResolvedOfficial
May 8, 2026
05:01 PM UTC
Elevated errors on Claude Opus 4.7

Type: Incident Duration: 1 day and 31 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 8, 17:25:40 GMT+0 - Resolved - This incident has been resolved. May 8, 17:13:50 GMT+0 …

0m
Partial OutageResolvedOfficial
May 8, 2026
03:03 PM UTC
Elevated errors on Claude Sonnet 4.6

Type: Incident Duration: 7 hours and 14 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 8, 15:11:04 GMT+0 - Resolved - This incident has been resolved. May 8, 15:07:58 GMT+…

0m
Partial OutageResolvedOfficial
May 8, 2026
02:12 PM UTC
Elevated Errors on File Operations

Type: Incident Duration: 2 days, 16 hours and 35 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 8, 15:17:02 GMT+0 - Resolved - This incident has been resolved. May 8, 14:1…

0m
Partial OutageResolvedOfficial
May 8, 2026
09:49 AM UTC
Elevated errors across Claude Models

Type: Incident Duration: 4 days, 15 hours and 27 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 8, 09:49:14 GMT+0 - Investigating - We are currently investigating this iss…

0m
Partial OutageResolvedOfficial
May 7, 2026
12:10 PM UTC
Elevated errors on Claude Opus 4.7

Type: Incident Duration: 1 day, 11 hours and 32 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 7, 12:45:50 GMT+0 - Resolved - This incident has been resolved. May 7, 12:19…

0m
Partial OutageResolvedOfficial
May 6, 2026
03:29 PM UTC
Elevated errors across multiple models

Type: Incident Duration: 3 days, 10 hours and 11 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 6, 15:54:50 GMT+0 - Identified - The issue has been identified and a fix is…

0m
Partial OutageResolvedOfficial
May 4, 2026
02:07 PM UTC
Elevated errors on Claude Opus 4.7

Type: Incident Duration: 1 day, 1 hour and 48 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 4, 14:07:57 GMT+0 - Identified - The issue has been identified and a fix is be…

0m
Partial OutageResolvedOfficial
May 4, 2026
01:59 PM UTC
Elevated errors on Claude Opus 4.5 and Sonnet 4.5

Type: Incident Duration: 1 day, 22 hours and 40 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 4, 14:08:19 GMT+0 - Identified - The issue has been identified and a fix is …

0m
Partial OutageResolvedOfficial
May 4, 2026
08:09 AM UTC
Elevated errors on Claude Opus 4.5

Type: Incident Duration: 4 days, 3 hours and 52 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) May 4, 09:14:14 GMT+0 - Identified - We are continuing to work on a fix for this…

0m
Partial OutageResolvedOfficial
Apr 30, 2026
01:20 AM UTC
claude.ai and API unavailable

Type: Incident Duration: 1 day, 6 hours and 50 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 30, 01:51:16 GMT+0 - Resolved - This incident has been resolved. Apr 30, 01:2…

0m
Partial OutageResolvedOfficial
Apr 29, 2026
01:47 PM UTC
Elevated errors on Claude Haiku 4.5

Type: Incident Duration: 1 day, 2 hours and 49 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 29, 13:47:45 GMT+0 - Investigating - We are currently investigating this issu…

0m
Partial OutageResolvedOfficial
Apr 28, 2026
11:33 PM UTC
Elevated errors on Claude Opus 4.7

Type: Incident Duration: 1 day, 3 hours and 21 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 29, 00:00:29 GMT+0 - Resolved - The incident is now resolved. The impact was …

0m
Partial OutageResolvedOfficial
Apr 28, 2026
05:41 PM UTC
Claude.ai unavailable and elevated errors on the API

Type: Incident Duration: 3 days, 21 hours and 57 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 28, 17:51:36 GMT+0 - Identified - We have identified an issue resulting in …

0m
Partial OutageResolvedOfficial
Apr 28, 2026
01:29 PM UTC
Elevated errors on Claude Sonnet 4.5

Type: Incident Duration: 20 hours and 10 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 28, 13:29:56 GMT+0 - Investigating - We are currently investigating this issue. Apr…

0m
Partial OutageResolvedOfficial
Apr 28, 2026
12:24 PM UTC
Elevated errors on Claude Haiku 4.5

Type: Incident Duration: 21 hours and 6 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 28, 12:45:07 GMT+0 - Resolved - The incident has now been resolved. The elevated err…

0m
Partial OutageResolvedOfficial
Apr 25, 2026
07:48 AM UTC
Elevated errors on Claude Opus 4.7

Type: Incident Duration: 2 days and 59 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 25, 08:37:30 GMT+0 - Resolved - This incident has been resolved. Apr 25, 07:48:31 GMT…

0m
Partial OutageResolvedOfficial
Apr 25, 2026
01:45 AM UTC
Claude Code v2.1.120 Crashes on Startup

Type: Incident Duration: 2 days, 2 hours and 17 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 25, 01:45:32 GMT+0 - Monitoring - We have identified an issue in Claude Code…

0m
Partial OutageResolvedOfficial
Apr 25, 2026
01:35 AM UTC
Elevated error rates on Claude Opus 4.7

Type: Incident Duration: 2 days, 10 hours and 34 minutes Affected Components: Anthropic → Claude API (api.anthropic.com) Apr 25, 01:35:55 GMT+0 - Investigating - We are investigating elevated errors f…

0m

Related pages

About Stack AI status

Stack AI is a no-code AI workflow platform for building and deploying enterprise AI agents. When Stack AI is down, workflow automation and API integrations are unavailable. Stack AI connects LLMs to enterprise data sources.