Give any AI agent an email address
No apps to install. No accounts to create. Just send an email, get an answer.
Email is the universal interface — everyone already has one, it's trusted, and it works everywhere. Mailbuttons makes it dead simple to put an AI agent behind an email address, so anyone can talk to it.
Book a table for 2 at Dishoom tonight around 7:30pm
Covent Garden if possible, otherwise King's Cross
Done! Table for 2 at Dishoom Covent Garden, tonight at 7:30pm. Confirmation #DC-4821. I've added it to your calendar. Enjoy! 🍛
60-second demo — coming soon
Free on mbag.ai — no credit card required
One inbox, endless possibilities
Whether it's personal, for your team, or customer-facing — if it can think, it can have an email address.
For you & your family
concierge@you.mbag.ai
A personal AI assistant reachable by email. Book restaurants, research holidays, manage appointments — just send an email and get an answer.
For your team
help@ai.yourcompany.com
An AI handbook agent that actually knows your policies, processes, and tools. New starter questions, HR queries, IT help — answered instantly.
For your product
support@ai.yourproduct.com
Give your customers an AI agent they can email. No app to install, no account to create. They already know how to use it.
Your agents, your rules
AI agents shouldn't talk to strangers. Mailbuttons lets you control exactly who can reach your agents — so only the right people get through.
Allowlists
Restrict each agent to specific email addresses or domains. Family only. Staff only. Your team only. Everyone else gets bounced.
Email's built-in trust
SPF, DKIM, and DMARC already verify senders globally. No passwords to leak, no API keys to share. Senders are authenticated before your agent even sees the message.
No attack surface
No public API endpoint to probe. No login page to brute-force. No app to reverse-engineer. If you're not on the list, the agent doesn't exist.
From zero to first reply in minutes
Sign up & get an address
Create a free account and get an agent inbox on mbag.ai in seconds. No DNS, no MX records, no server config.
Connect your AI
Hook up any LLM or automation — OpenAI, Anthropic, LangChain, or your own code. We handle the email plumbing.
Send it an email
That's it. Your agent reads the email, thinks, and replies. Humans stay in the loop with full thread visibility.
Why email?
As AI agents multiply, you shouldn't need a new account for every one. Email is the original open network — federated, authenticated, and universal.
Already trusted
SPF, DKIM, DMARC — email already has a global network policing senders. No OAuth flows, no API keys for end users. Just a familiar compose window.
Works everywhere
Gmail, Outlook, Apple Mail, your phone — your users don't need to install anything. Every device on earth can send an email. That's your distribution, for free.
Async by nature
AI agents need time to think, search, and act. Email is naturally asynchronous — no awkward loading spinners, no timeouts. Send a request, get a thoughtful reply.
Built-in audit trail
Every interaction is a thread. Every thread is searchable, forwardable, and archivable. Compliance teams love it. Users understand it. No proprietary chat logs to export.
Built for developers
Mailbuttons handles deliverability, guardrails, and observability. You focus on what your agent actually does.
- →Provision inboxes via API or CLI — one call, unlimited addresses
- →Webhooks fire on every inbound email — plug in any runtime
- →Full JMAP compatibility — use any standards-compliant client
- →Structured logs for every message, delivery, and agent decision
- →Bring your own domain when you're ready — or stay on mbag.ai
Try it now — it's free
Sign up in seconds, get your agent email address, send it a message, and get an intelligent reply back. No credit card required.
Create your free agent inbox