How to Connect Multiple Gmail Accounts to Claude Cowork
Yes—you can connect multiple Gmail accounts to Claude Cowork with Carly. Add every personal Gmail and Google Workspace account to Carly once, connect Carly to Claude, and Cowork can search or act across the right inbox without making you disconnect one Google account and sign in to another.
What the finished setup gives you
With one Carly connector in Cowork, you can:
- search several Gmail accounts in one task;
- build one briefing from personal and work inboxes;
- compare threads across two company accounts;
- draft or send from the exact address you choose;
- organize the correct inbox with labels and moves;
- check several calendars while creating an event on only one.
The accounts stay separate underneath. Carly supplies the multi-account routing, and Claude remains the workspace where you run the task.
Why Claude’s native Gmail connector does not solve this
Anthropic says Claude can access Gmail, Calendar, and Drive data for the Google account connected to Claude. That works well for one identity. It does not create one Cowork task with several independent Google logins available at the same time.
Switching the connected Google account simply changes which identity Claude can reach. Carly removes that switching loop by holding each authorized Gmail connection behind one Claude connector.
1. Give each Gmail account a clear name
Write down the addresses and assign stable roles. For example (all addresses are fictional):
| Address | Role in Cowork |
|---|---|
fictional.emily.parker@pepsi.com | Main Company |
fictional.emily.parker@ford.com | Second Company |
fictional.emily.parker@cisco.com | Client |
Use names such as Personal, Main Company, and Client, not “Gmail 1” and “Gmail 2.” The roles will become shortcuts in your prompts, while the full address remains the safest choice for sends and other write actions.
2. Connect the first Gmail account to Carly
- Sign in at carlyassistant.com.
- Open carlyassistant.com/integrations.
- Find Gmail and click Connect.
- Choose the first Google account.
- Review and approve the Google permissions.
- Confirm the connected address in Carly.
If Google Workspace shows an administrator-review message, ask the Workspace administrator to approve the connection, then repeat the authorization.
3. Add every other Gmail account
Repeat the same connection flow for the personal account and each additional work identity:
- Return to Carly’s integrations page.
- Select Gmail → Connect again.
- Choose Use another account if Google preselects the previous login.
- Sign in to the next address.
- Complete authorization.
- Verify the full address before adding another.
There is no forwarding, POP import, or mailbox merge. Each Gmail account remains its own connection, so Carly can route work to the right one.
4. Connect Carly to Claude Cowork
In Claude:
- Open Customize in the sidebar.
- Select Connectors.
- Click +, then Add custom connector.
- Paste
https://carlyassistant.com/mcp/. - Click Add and authorize your Carly account.
- In the Cowork task, open + → Connectors and enable Carly.
Anthropic documents this path in its remote MCP connector guide. On Team and Enterprise, an Owner may need to add the connector to the organization before members can connect it.
5. Test each inbox before sending anything
Run one harmless request per account:
In
fictional.emily.parker@pepsi.com, list the subject and sender of the five newest unread messages. Do not change anything.
In
fictional.emily.parker@ford.com, find the newest thread containing “Q3 plan.” State the source account and do not draft or send.
Then test a combined search:
Search the Ford and Cisco example accounts for “renewal” from the last 30 days. Include the full source address in every row.
Once Cowork consistently identifies the correct source, the routing is ready for drafts, labels, sends, and calendar actions.
6. Reuse this account-routing prompt
Paste this near the beginning of a Cowork task:
Treat
fictional.emily.parker@pepsi.comas Main Company,fictional.emily.parker@ford.comas Second Company, andfictional.emily.parker@cisco.comas Client. Always state the target address before changing data. For sends, moves, deletes, labels, or calendar changes, wait for my approval.
Then name the account in each action:
Draft a reply from
fictional.emily.parker@ford.com. Do not send yet.
Apply the Finance label in
fictional.emily.parker@cisco.comonly.
Send the approved reply from the same Gmail account that received the original thread.
Native Gmail versus Carly in Cowork
| Need | Claude’s native Gmail connector | Carly connector |
|---|---|---|
| Search one Google account | Yes | Yes |
| Use multiple independent Gmail accounts | Not in one native connection | Yes |
| Compare several inboxes in one task | No | Yes |
| Send from a named connected Gmail account | Native Gmail creates drafts but does not send | Yes, with the connected account’s permissions |
| Run recurring multi-account workflows | No | Yes |
Anthropic notes that native Gmail creates drafts but does not send email. Carly can supply the send and workflow layer as well as the multi-account connection. Carly offers free Zapier-style workflows; AI agents start at $35/month.
Quick fixes when an account does not appear
| Problem | Fix |
|---|---|
| Google connected the same address twice | Remove the duplicate and reconnect with Use another account |
| Workspace blocks the connection | Ask the Workspace administrator to approve Carly |
| Carly is installed but unavailable in Cowork | Open + → Connectors and enable it for the task |
| Cowork searches the wrong inbox | Use the full address and request a source-account column |
| Claude cannot add Carly | Ask the Claude Owner to enable the custom connector |
Frequently asked questions
Can Claude Cowork connect two Gmail accounts natively?
Claude’s Google connector is tied to the Google identity you authenticate. Carly is the straightforward way to make several separately connected Gmail identities available inside one Cowork task.
Can I connect personal Gmail and Google Workspace together?
Yes. Connect each account separately to Carly, add Carly to Claude, and give each address a clear Personal or Work role.
Does Carly merge the inboxes?
No. The Gmail accounts remain separate. Cowork can search across them when asked, while every draft, label, send, or move is routed to the account you name.
Related: What is Claude Cowork · Claude + Gmail · Claude Cowork limitations · Manage multiple email accounts with AI · Carly’s Gmail integration
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