{"service":"SendGrid Email API","version":"2.1.0","status":"running","documentation":"/api/config","endpoints":{"health":"GET /health","config":"GET /api/config","sendEmail":"POST /api/send-email","clients":"GET /api/clients","usage":"GET /api/usage"},"authentication":"Bearer token required for /api/send-email","timestamp":"2026-06-01T12:44:06.492Z"}