Is Claude API down

Is Claude API Down? Anthropic Status and Error Checks

Honest boundary: llmping does not ping user API keys and does not claim fake real-time provider status. Use this page to separate outage symptoms from key, quota, permission, and runtime failures.

What this page can check

Check whether a Claude or Anthropic API failure looks like provider overload, network reset, invalid auth, or an application-side retry problem.

Official provider status page: https://status.anthropic.com/

Historical public endpoint uptime

llmping samples provider public endpoints and official status feeds every 5 minutes through a Cloudflare Worker. These percentages never use user API keys and should be read as public reachability evidence, not a guarantee for every authenticated workload.

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Immediate checks

529 overloaded_error points to provider capacity pressure.
ECONNRESET is a transport failure and can come from proxies or serverless timeouts.
401/403 class errors are normally account, key, or permission issues.
Compare one short request against one streaming request before blaming the provider.

cURL test command

curl -i https://api.anthropic.com/v1/messages \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{"model":"claude-3-5-haiku-latest","max_tokens":16,"messages":[{"role":"user","content":"ping"}]}'

Run this from your own terminal or server. A status code is only useful after you know whether auth, quota, or endpoint selection is correct.

Run diagnosis

Related errors

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