Meta Muse With Multiple Accounts (2026)
Meta Muse connects to your email and calendar through built-in connectors for Gmail, Google Calendar, Outlook Mail, and Outlook Calendar. Each of those connectors holds one account.
That covers someone with one Gmail. It does not cover the person with a personal Gmail, a business Gmail, and a client’s Outlook, which is most people who run their own business. Add Carly to Muse as a custom connector and Muse works across all of them at once.
What Muse sees natively
| Your setup | What Muse’s own connectors reach |
|---|---|
| Personal Gmail + business Gmail | One of the two |
| Two Outlook accounts | One of the two |
| One Gmail + one Outlook | Both, one of each |
| Calendars on two different Google accounts | One account’s calendars |
A shared mailbox like billing@ | Not documented |
The one mixed pair that works natively is one Gmail plus one Outlook, because they are different connectors. A second account on the same provider is where it stops.
The fix: one Carly connector for every account
Carly holds as many Gmail and Outlook accounts as you connect, plus every calendar on both sides. Muse reaches all of them through a single custom connector.
- Sign in at carlyassistant.com and open carlyassistant.com/integrations.
- Find Gmail or Outlook, click Connect, and repeat for every account you want.
- At the bottom of 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.
- In a Muse chat, send this message, then paste the key when Muse asks for it in its secure credential prompt:
Build a custom connector to https://carlyassistant.com/mcp/ using an API key as a bearer token.
Then ask across everything at once:
Check all my inboxes and calendars and tell me what I need to handle before my 2pm.
Carly connects to thousands of apps, so the same connector can bring your CRM, files, and task list into Muse too.
Step-by-step guides for your setup
- Several Gmail accounts: How to connect multiple Gmail accounts to Meta Muse
- Several Outlook accounts: How to connect multiple Outlook accounts to Meta Muse
- Gmail and Outlook together: Connect multiple email accounts to Meta Muse
- Several Google calendars: How to connect multiple Google Calendars to Meta Muse
- Several Outlook calendars: How to connect multiple Outlook calendars to Meta Muse
- Several Google Drive accounts: How to connect multiple Google Drive accounts to Meta Muse
- Several OneDrive accounts: How to connect multiple OneDrive accounts to Meta Muse
Native connectors versus Carly in Muse
| Need | Muse’s own connectors | Carly connector |
|---|---|---|
| One Gmail or one Outlook | Yes | Yes |
| Two Gmails or two Outlooks | No | Yes |
| Business Gmail + personal Gmail | No | Yes |
| One Gmail + one Outlook | Yes, separate connectors | Yes, one connector |
| Calendars across several accounts | One account per provider | Yes, all of them |
Shared mailboxes like billing@ | Not documented | Yes |
| Work that starts when a client emails | Not documented | Yes |
Where Carly goes past the connector
Muse handles errands well, and since Muse for Small Business it reaches apps like Slack, QuickBooks and Shopify too. Carly is built for the accounts that pay you.
It watches every connected mailbox and calendar on its own. When a client emails your business address, a Carly workflow can draft the reply from that account, book the call around every calendar you have, and log it in your CRM before you open Muse. Booking pages and group scheduling come with it, across unlimited connected calendars.
Carly offers free Zapier-style workflows; AI agents start at $35/month.
Frequently asked questions
Can Meta Muse connect two Gmail accounts?
Not through its own Gmail connector, which holds one Google account. Carly holds both and reaches Muse through one custom connector. See can Meta Muse connect to multiple Gmail accounts?
Can I use Muse for work and personal email at the same time?
Natively, only if one is Gmail and the other is Outlook. With Carly connected, any mix works, including two Gmails.
Is a custom connector safe?
Meta does not review custom connectors, so it is worth knowing what you are connecting. Carly signs in to each account through Google’s or Microsoft’s own sign-in, never sees your password, and does not train on customer data.
Does Muse keep the accounts separate?
Yes. Nothing is merged or forwarded. Each account stays its own connection in Carly, and every draft, send, or calendar change lands in the right one.
Related: What Meta Muse does and what it costs · Meta Muse alternatives · Meta Muse vs Instinct · Best AI assistants for multiple email accounts · Best AI assistants for multiple calendars
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."
