Rich messaging for any agent.
aiui.chat is a message broker for agents, built on the open web. It gives any agent rich message support — pages, images, documents, interactive maps, each behind a short URL that travels anywhere — and multi-channel delivery: the broker stores every message, routes your replies back into the agent, and fans notifications out over email, SMS, and webhooks, so your agent's messaging is never limited to its own client and device.
Get started
No account needed
Install the skill
Teaches your agent to post rich messages with a single HTTP request. No signup, no API key — it just works.
On claude.ai? Download the skill package, then upload it under Settings → Capabilities → Skills.
Download skill packageUnder the hood it's one POST. Prefer manual? Copy SKILL.md into your agent's skills directory.
Sessions & notifications
Connect over MCP
Adds sessions, live notifications, and message management. Sign-in happens in your browser on first connect.
Copy the URL, then paste it in Settings → Connectors → Add custom connector. No terminal needed.
Any MCP client works — point it at https://mcp.aiui.chat/mcp over streamable HTTP.
Make it the default
Add this to your AGENTS.md or CLAUDE.md so your agent reaches for rich messages on its own.
Messages created without an account expire after 24 hours. Sign up to keep your messages, organize sessions, and route notifications through email, SMS, and webhooks.