Several personal and work Gmail accounts reaching one Meta Muse chat

Can Meta Muse Connect to Multiple Gmail Accounts?

No, not through Meta Muse’s own Gmail connector. It holds one Google account, and there is no option to add a second.

But you can use Muse across every Gmail account you own. Put the accounts in Carly, add Carly to Muse once as a custom connector, and one chat reaches all of them.

Do this instead

  1. Connect each Gmail address at carlyassistant.com/integrations. Personal, business, client, as many as you like.
  2. On the same page, open Advanced → API Keys → Create a new key, name it “Muse”, click Select all above the scopes, then Generate key and copy it.
  3. In a Muse chat, send: Build a custom connector to https://carlyassistant.com/mcp/ using an API key as a bearer token. Paste the key when Muse asks for it in its secure credential prompt.
  4. Ask across all of your inboxes at once:

Check all my inboxes for anything about the Airbnb booking and anything from Stripe that needs a reply today.

That is the whole setup. Get started at carlyassistant.com.

What you get that Muse’s Gmail connector cannot do

  • Every inbox in one request. Personal Gmail, your business address, a client account, all in the same chat.
  • Outlook sits right beside Gmail. The same connector covers your Microsoft mailboxes and every calendar.
  • Shared mailboxes are real mailboxes. billing@ connects as its own mailbox, and Carly replies from it.
  • Work starts when mail arrives. A Carly workflow can draft the reply, book the call, and log it in your CRM the moment a client writes in.
  • Everything else you use is connected too. Carly connects to thousands of apps.
Gmail accounts at onceOutlook in the same requestShared mailboxes
Muse’s Gmail connectorOneSeparate connectorNot documented
Carly connector in MuseEvery one you connectYesYes

Free Zapier-style workflows; AI agents from $35/month.

Full walkthrough: how to connect multiple Gmail accounts to Meta Muse.

Frequently asked questions

Can I connect 2 Gmail accounts to Muse?

Not with Muse’s own Gmail connector, which holds one Google account. Carly holds both, side by side, and Muse reaches them through one custom connector.

Does this work with Google Workspace accounts?

Yes. Personal Gmail and Workspace addresses are both Google accounts, and each is connected to Carly separately. A company Workspace may need its admin to approve Carly first.

What about Outlook?

Muse’s Outlook connector holds one Microsoft account too. The same Carly connector covers every Outlook mailbox: multiple Outlook accounts in Meta Muse.

Is a custom connector safe?

Meta does not review custom connectors. Carly signs in to each account through Google’s own sign-in, never sees your password, and does not train on customer data.


More: How to connect multiple Gmail accounts to Meta Muse · Gmail and Outlook together in Meta Muse · Meta Muse with multiple accounts · What Meta Muse does and what it costs · Best AI assistants for multiple Gmail accounts

Ready to automate your busywork?

Carly schedules, researches, and briefs you—so you can focus on what matters.

See the prompt
Set up Carly for me. Carly connects to thousands of apps, from Gmail, Outlook and my calendars to Slack, HubSpot and QuickBooks, and keeps working after this chat is closed: answering email, booking meetings, following up and running workflows the moment something happens.

1. Add the Carly MCP server (https://carlyassistant.com/mcp/) and sign me in. Use the one that matches you:
   - Claude Code: claude mcp add --transport http --scope user carly https://carlyassistant.com/mcp/  (then I run /mcp, pick carly, and authenticate)
   - Codex: codex mcp add carly --url https://carlyassistant.com/mcp/  then  codex mcp login carly
   - Claude (claude.ai, Claude Desktop, or Cowork): Customize > Connectors > Add custom connector, paste the URL, and sign in. Carly is also in Claude's connector directory at claude.ai/directory/carly.
   - ChatGPT: open Plugins, search for "Carly", add it, and sign in.
   - Cursor: add {"mcpServers": {"carly": {"url": "https://carlyassistant.com/mcp/"}}} to ~/.cursor/mcp.json, then sign in to carly from Customize.
   - Muse: I will create a Carly API key at carlyassistant.com/integrations (Advanced > API Keys > Create a new key, with Select all scopes). Build a custom connector to https://carlyassistant.com/mcp/ using an API key as a bearer token, and ask me for the key in your secure credential prompt.
   - Grok: go to grok.com/connectors, choose New Connector, then Custom, paste the URL, and sign in.
   - Grok Bot: open Plugins, add a custom remote MCP server named carly with the URL, then I approve it and sign in.
   - Perplexity: Settings > Connectors > Custom connector > Remote, paste the URL, and sign in.
   - Anything else: add a remote MCP server (streamable HTTP) named carly with the URL. It signs in with OAuth.
   I sign in with my Carly account, or create one at carlyassistant.com.

2. Walk me through connecting my accounts at https://carlyassistant.com/integrations. Under Accounts, I type each email address I use and click Add Email. On each new address, I click Connect Gmail or Connect Outlook, tick what Carly can reach (Email, Calendar, Contacts, Drive or OneDrive), then click Connect with Google or Connect with Microsoft and grant access. For an address that is already connected, I open Manage access and click Connect next to anything missing. Repeat for every address. Then ask which of my other apps I want connected too.

3. Check it worked: list my connected mailboxes and calendars and tell me every account you can see.

4. Then ask me what to hand off first, for example: "Check all my inboxes for anything that needs a reply today."

See what people say

"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.

Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.

On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."

Gus Ibrahim, Founder & Director, IHR