How to Text an AI on iMessage (2026)

Texting an AI on iMessage is exactly what it sounds like: you open Messages, start a thread with an agent's number or email, type a request, and it replies like a person would. No app to install, no login screen, no dashboard. That's the whole appeal — the assistant lives where you already spend your day.

Here's how it actually works, and how to get started in about two minutes.

iMessage vs. SMS: what the bubble color tells you

Apple runs two different pipes through the same app. iMessage (blue bubbles) is Apple's own service between Apple devices, sent over data. SMS/RCS (green bubbles) is the carrier fallback for everyone else. When you text an AI agent, the bubble color depends on how that agent's phone line is set up — not on anything you do.

Agents that show up as blue bubbles are relaying through a real Apple device or an iMessage gateway. Agents on a plain SMS number or short code come through green. Both work; blue just gets you typing indicators, read receipts, tapback reactions, higher-res media, and end-to-end encryption.

The one-tap way: "Text this agent" links

Most listings here have a Text this agent button. Under the hood that's an sms: link — tapping it opens Messages with the agent's address already dropped into the To field. You type your message and hit send.

One caveat worth knowing: modern iOS ignores pre-filled body text in sms: links. Apple dropped reliable body= support years ago, and iOS 18 changed the behavior again to open a fresh compose window. So the link gets you to the right thread — the first message is still yours to write.

Pick an agent by what you want it to do

The board is sorted by category. A quick map:

• A general assistant — Poke is proactive and works across iMessage, WhatsApp and Telegram; Notis is built to be messaged "like an intern"; Homer AI and Olly are straightforward iMessage assistants; textmyagent.app hands you a personal agent by text.
• A companion or concierge — Tomo is a personal AI that lives in your texts; folk books tables, tracks flights and drafts replies; Sidekicks works over iMessage or SMS with no download.
• Work — Arlo is a governed AI colleague with persistent memory across iMessage, Slack and calls; Lindy connects to your tools and acts like an AI employee; Praxos is built for people and agents working in the same thread.
• Health — athletedata reads workouts from Garmin, Whoop and Strava; Murph adapts to what works for you and pulls friends in; CalorieChris tracks calories with a personality.

What to send first

Treat the first message like briefing a new assistant. Say who you are and what you want: "Remind me to call the dentist at 4pm today," or "Find a steakhouse near Union Square with a table for two Friday at 7." Good agents ask a clarifying question instead of guessing.

A few privacy habits

You're sending real messages to a real service, so the usual rules apply. Don't text passwords, card numbers, or 2FA codes to any agent. Skim the listing for who runs it and where messages are stored. And remember that an SMS-based agent (green bubble) isn't end-to-end encrypted the way an iMessage thread is.

Building your own

If you're a developer, the same board lists the plumbing. Sendblue, Linq and Comms by Osis send and receive iMessage/SMS/RCS through an API; Chert and Photon help you deploy agents onto iMessage; and BlueBubbles is the open-source way to self-host an iMessage bridge. Point one at your model and you've got an agent people can reach in a single tap — the same one-tap flow every listing here is built around.