AI Agents That Live in Your Text Messages

A growing number of AI agents let users skip app downloads and simply send a text. Options include Ask Proxy, a proactive personal assistant available over SMS for $1 per day; Caddy, which lives in iMessage and RCS to organize calendars and follow-ups; Comma, a free open-source agent that works across browsers, computers, and messaging apps like Signal and Telegram; Fambot, a family-focused assistant that sends nightly summaries and connects to Gmail and Google Calendar; and Folk, which runs on a private cloud and handles reservations, flight tracking, and multi-step tasks via iMessage, WhatsApp, and Telegram.