Connect Gemini CLI to your email through Mailopoly

This page is about Gemini CLI, Google's open-source terminal agent (people also write gemini-cli or google gemini cli). It is not about the Gemini app or the Gemini in Gmail features, which have their own connectors.

Does Gemini CLI support Gmail without Mailopoly?

Not built in. Gemini CLI has no email tool of its own. The Google Workspace extension (gemini extensions install https://github.com/gemini-cli-extensions/workspace) adds Gmail alongside Docs, Sheets, Calendar and Drive, with a Google sign-in — for Google accounts. There is nothing for Outlook, Yahoo, iCloud or IMAP, and the extension hands the agent raw messages.

Mailopoly covers every provider in one connection and one question, hands Gemini CLI mail that is already filtered by Cleanbox with invoices, events and deliveries extracted, and keeps reading, making changes and sending as separate grants you can revoke from Mailopoly at any time.

Connect Gemini CLI to your email in three steps

What Gemini CLI can do with your email through Mailopoly

• Search every account in one question — Gmail, Outlook, Yahoo, iCloud and IMAP together, or one account by name — by sender, date, topic or the half-remembered phrase somewhere in the body.
• Work from the Cleanbox — your personal, non-promotional mail already separated from newsletters, promotions and automated noise, so a summary is a summary of what matters.
• Read summaries, not raw messages — every email arrives already summarised, with invoices, events and deliveries extracted with their amounts, dates and status.
• Keep My Day — see tasks and commitments pulled from every inbox, add tasks and reminders, tick things off.
• Draft and send — save drafts to Mailopoly for you to review, or with the send permission send from whichever connected address fits the conversation, or from your @mly.life address.
• Know what things cost — look up an invoice, total the week's bills, see what your subscriptions add up to.
• Tidy up — label, file or clear mail in bulk, when you tell it to.
• Business channels too — add them to your plan and your Slack, Teams, WhatsApp, Instagram, Messenger and TikTok messages sit in the same connection, and replies go back out through the channel they arrived on.

Should you give an agent your email account at all?

The warnings you'll find are right about one thing: an agent that logs in to Gmail as you, with your password, on a machine you don't control, is a bad idea. Mailopoly doesn't work that way. Your Google and Microsoft accounts connect to Mailopoly through their own sign-in, and other providers through an app password you enter on Mailopoly's page — Gemini CLI never has a password in its hands and never logs in to your provider at all.

Gemini CLI connects to Mailopoly with a scoped OAuth sign-in. Reading, making changes and sending are separate grants, sending is flagged as a confirm-first action in the protocol itself, every tool call is audit-logged against your account, and you can revoke Gemini CLI from Settings → Security → Connected AI assistants in the Mailopoly app — access ends immediately. Mailopoly is independently security-assessed to CASA Tier 2 by TAC Security. If you want a hard line, give Gemini CLI reading only, or give it one of your @mly.life addresses to send from so nothing leaves under your name unless you say so. More on whether it's safe to give AI access to your email and the security page.

What goes wrong with Gemini CLI, and the fix

• `url` instead of `httpUrl`. In settings.json, url means an SSE server. Mailopoly is streamable HTTP, so the key is httpUrl — or just use gemini mcp add --transport http.
• The free login's daily quota ran out. A Google login gives Gemini CLI a fixed number of model requests per day; mail-heavy sessions use them. That's Gemini's limit, not Mailopoly's.
• It only reads mail when you prompt it. Gemini CLI acts within a turn. For it to be *messaged* by Mailopoly, and to message you when it's done, see the Gemini CLI agent guide.
• It connected but the tools don't answer. Mailopoly's tools respond on an active subscription or trial. If the trial has lapsed, the connection stays but calls return nothing useful until the plan is active.
• It can read but won't draft or send. Those are separate permissions. Sign in again from Gemini CLI and tick making changes or sending — or check what it holds under Settings → Security → Connected AI assistants in Mailopoly.

Related: Gemini CLI on the Switchboard · Email for AI agents · Connect Outlook · Is it safe to give AI access to your email?

Other connect guides

Email providers

• Gmail
• Outlook
• Yahoo Mail
• iCloud Mail
• AOL Mail
• Comcast Email
• Zoho Mail
• Yandex Mail
• GMX
• Fastmail
• IONOS
• QQ Mail
• Web.de
• one.com
• OVH
• 163 Mail
• Alibaba Cloud Mail
• Namecheap Private Email
• Hostinger Email
• STRATO
• Mail.ru
• Naver Mail
• Titan Email
• Seznam.cz
• GoDaddy Workspace Email
• AT&T Mail
• Aruba Mail
• Infomaniak Mail
• Orange Mail
• Libero Mail
• Mail.com
• BT Mail
• Any IMAP Mailbox

Messaging channels

• WhatsApp Business
• Slack
• Microsoft Teams
• Instagram
• Facebook Messenger
• TikTok
• X

Connect guides by assistant

• Connect your email to Claude
• Connect your email to ChatGPT
• Connect Grok Bot to your email
• Connect Claude Code to your email
• Connect Codex to your email
• Connect OpenClaw to your email
• Connect Cursor to your email
• Connect Gemini CLI to your email
• Connect GitHub Copilot to your email
• Connect Hermes Agent to your email
• Connect Devin to your email
• All connect guides
• Mailopoly MCP — every client
• Agent guides — every AI you run, one inbox
• Email for AI agents — your inbox, not a throwaway one
• Security at Mailopoly
• Is it safe to give AI access to your email?
• The unified inbox: email, apps and agents