TheLibrarian.io is a 2026 WhatsApp-based AI personal assistant that supercharges productivity by mastering your inbox, controlling your schedule, and finding anything instantly. It integrates seamlessly with Google Workspace (Gmail, Calendar, Drive), Slack, Notion, Zoom & more—drafting/replying emails, scheduling meetings, setting reminders, extracting info from uploads, providing morning briefs/daily summaries, and automating follow-ups. Strong privacy focus with AES-256 encryption. Ideal for busy professionals, founders, and teams—free Basic tier + affordable paid plans.