API Status

Status of the key you authenticate with: its plan and rate limit, request counts for today, this week and this month, the top endpoints it calls, and a daily series. Authenticate with the X-Api-Key header; without one the answer is 400 MISSING_KEY. The ?key= query parameter still works but is deprecated and answers carry a Deprecation header: a URL ends up in access logs, CDN logs and browser history, so a key passed that way stops being secret.