Is Anthropic down right now?

Is this Anthropic's official status page?

No. It is an independent, outside-in view. Official status pages often confirm incidents late; we probe real service endpoints every five minutes and publish what we see.

When do you say Anthropic is down?

A single failing endpoint is reported as an error, never as an outage. We declare a provider incident only when several independent services that share Anthropic fail in two consecutive sweeps.

Why do other services appear here?

Because they depend on Anthropic. When Anthropic has problems, these are the services most likely to be affected next, even if their own status pages still say everything is fine.