{"auth":"Header X-API-Key or query ?api_key=YOUR_KEY","endpoints":{"bulk":"POST /bulk   (JSON: {\"domains\": [\"a.com\", \"b.com\"]})","health":"GET /health","single":"POST /check  (JSON: {\"domain\": \"example.com\"})"},"max_bulk":3000,"service":"Domain Age Checker API","version":"1.0"}