Live status · AI
Is Claude API down?
Up · checkedNo, Claude API is not down right now: api.anthropic.com answered our check at 18:07 UTC, and Claude API’s status page reports no problems.
The Claude API gives developers access to Anthropic's models for their own apps.
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Up
Claude API is up
api.anthropic.com answered our last check in 23 ms. The official status page reports no problems.
- Last checked
- Response
- HTTP 405 · 23 ms
- Checked from
- Stockholm, New York and London
- Uptime since 19 Oct
- 100%
HTTP 405 is expected here: we call api.anthropic.com without a page or method it serves, and getting that answer shows it is up. Outages show up as errors (5xx) or no answer.
Official status: All Systems Operational
Status pageEmail me when Claude API goes down
One email when it looks down, one when it’s back. Free, no account: confirm by email, stop with one click.
//_01 User reports
Having problems with Claude API?
Tell us what isn’t working. Reports are anonymous and show up here within about a minute, so everyone can see whether Claude API is failing for others too.
What isn’t working?
Reports, last 24 hours
Per 15 minutes, in UTC
- Last hour
- 0
- Usually per hour
- 0
- Last 24 hours
- 0
No problems with Claude API reported in the last 24 hours.
//_02 Common problems
Claude API not working? Common problems and fixes
What usually helps when Claude API fails for you while it works for others.
Check api.anthropic.com from our serverGuides
529 overloaded_error
The API is temporarily overloaded. Retry with exponential backoff; your key and request are fine.
429 rate_limit_error
Your organization hit its limit for requests or tokens. The response headers say when to retry.
401 authentication_error
The x-api-key header is missing, wrong or holds a revoked key.
//_03 Last 24 hours
Claude API response time
How long api.anthropic.com took to answer our checks from Stockholm, New York and London, averaged per 15 minutes.
- Average
- 18 ms
- Slowest
- 42 ms
- Failed checks
- 0
//_04 Uptime
Claude API uptime, last 90 days
- 24 hours
- 100%
- Since 19 Oct
- 100%
//_05 Outages
Recent Claude API outages
Since we started checking Claude API on 19 Oct 2026, our checks every 2 minutes have not found Claude API down. Claude API’s status page reported 8 incidents in that time, the latest on 27 Oct 2026.
- Outages in our checks, since 19 Oct
- 0
- Downtime, since 19 Oct
- None
- Longest outage
- –
- Status page incidents, since 19 Oct
- 8
Outage timeline
-
Elevated errors for Claude Sonnet 5.5
27 Oct 2026, 15:09 UTC · 40 min · status page
-
Elevated errors for Claude Sonnet 5.5
27 Oct 2026, 09:17 UTC · 22 min · status page
-
Elevated errors for Claude Fable 5.1
25 Oct 2026, 08:19 UTC · 12 min · status page
-
Elevated errors for multiple models
25 Oct 2026, 06:14 UTC · 23 min · status page
-
Elevated errors for other Claude models
24 Oct 2026, 05:17 UTC · 25 min · status page
-
Elevated errors for Claude Opus 5.5
24 Oct 2026, 00:39 UTC · 2 min · status page
-
Elevated errors for Claude Opus 5.5
24 Oct 2026, 00:33 UTC · 4 min · status page
-
Elevated errors for Claude Fable 5.1
23 Oct 2026, 23:39 UTC · 32 min · status page
Open on Claude API’s status page
No open incidents on Claude API’s status page right now.
Claude API components on its status page
- claude.ai Operational
- Claude Console (platform.claude.com) Operational
- Claude API (api.anthropic.com) Operational
- Claude Code Operational
- Claude Cowork Operational
- Claude for Government Operational
Every Claude API outage since our checks started, with start, end and duration, and an Atom feed for your reader or Slack.
Show Claude API’s status on your site
Does your product depend on Claude API?
Uptimecheck watches Claude API’s status page and your own site, and alerts your team by email, Slack, Microsoft Teams, Discord, Telegram, push or webhook when either has an outage, so you can tell your customers first.
//_06 Is it just you?
Check any website right now
One request from our server in Stockholm: if it answers there, the problem is probably your network.
Checked from Stockholm, Sweden · Free, no sign-up
More on api.anthropic.com: SSL certificate · DNS records · email setup · domain expiry
About Claude API outages
Is Claude API down right now?
No, Claude API is not down right now: api.anthropic.com answered our check at 18:07 UTC, and Claude API’s status page reports no problems.
When was Claude API last down?
Our checks haven’t found Claude API down since we started checking it on 19 Oct 2026. Claude API’s status page last reported an incident on 27 Oct 2026: “Elevated errors for Claude Sonnet 5.5”.
How often does Claude API go down?
Since we started checking Claude API on 19 Oct 2026, our checks every 2 minutes have not found Claude API down. Claude API’s status page reported 8 incidents in that time, the latest on 27 Oct 2026.
How does Uptimecheck check Claude API?
We request https://api.anthropic.com/v1/messages every 2 minutes from Stockholm, New York and London. Any answer below HTTP 500 within 10 seconds counts as up, since large sites often answer automated requests with 403. A failure only counts once a second check confirms it. We also read Claude API’s official status page every 2 minutes.
What can I do when Claude API is down?
Check Claude API’s official status page for updates and try again in a few minutes. If api.anthropic.com works for us but not for you, try another network or browser, or clear your DNS cache. If your own product depends on Claude API, tell your customers on your status page before they email support.
Why is Claude API not working for me when it is up?
Our check shows that api.anthropic.com answers. Your own network, a VPN, browser extensions, an outdated app or a problem with your account can still break Claude API for you alone. The common problems on this page list what usually helps, and when many people report the same problem, it shows here.
Can I get an alert when Claude API has an outage?
Yes. Start a free trial and Uptimecheck watches Claude API’s official status page for you and alerts you by email, SMS, Slack, Microsoft Teams, Discord, Telegram or webhook when it reports an outage, and again when it is resolved.
Know before your users ask.
Uptimecheck checks your own websites, APIs and cron jobs as often as every minute, confirms every failure from a second location and alerts you before your users start searching.
14-day free trial · Then free on 5 monitors · No credit card