How to Connect Multiple Zoho Bigin Accounts to Claude
Yes, one Claude conversation can work across several Bigin accounts, but not through a single Zoho MCP server. Zoho’s official route has you create an MCP server in the Zoho MCP portal, add Bigin tools to it, and paste its URL into Claude as a custom connector. That server lives inside the Zoho account that made it. Connect each Bigin account to Carly with a Zoho sign-in instead, add Carly to Claude once, and Claude can create contacts and deals, update pipelines and attach files across every Bigin organization in the same chat.
1. Add your Bigin accounts to Carly
- Sign in at carlyassistant.com.
- Open carlyassistant.com/integrations.
- Find Zoho Bigin and click Connect. Leave the region as com unless your Bigin address ends in something else, such as bigin.zoho.eu or bigin.zoho.in.
- Sign in to Zoho and approve. Sign out of Zoho, then click Connect again for the next account.
Add your inbox, calendar and Zoho Books or QuickBooks too. That is where deals actually move.
2. Add Carly to Claude
- Click Get the Carly connector, then Connect, and sign in with your Carly account.
- In the conversation, open + → Connectors and enable Carly.
What one chat can do afterwards
- Read every module in each Bigin account: contacts, companies, pipelines and tasks.
- Add, update and delete records.
- Tag records, for example by lead source.
- Attach a signed quote or proposal to a deal, or download an attachment.
- See recently deleted records when something disappears.
- Compare pipelines across organizations in one answer.
Ask across all of them:
In both Bigin accounts, list deals that haven’t changed stage in two weeks and draft a check-in email for each contact.
Why one Zoho MCP server doesn’t cover a second account
Zoho MCP for Bigin is an official, well-documented route. You name a server in the Zoho MCP portal, add Bigin tools, then in Claude open Settings → Connectors → Add custom connector and paste the URL. Zoho notes that custom MCP is generally available on premium AI plans such as Claude Pro.
Each server is created and authorized inside one Zoho account. An agency running its own Bigin and a client’s, or an owner with two companies on separate Zoho logins, builds and maintains a server per account and still can’t ask one question that spans them.
Three documented apps is not a stack. ChatGPT's event-triggered tasks are documented for Gmail, Slack and GitHub, plus, since September 29, 2026, whichever other plugins support events, a list OpenAI has not published. Claude's scheduled tasks still run on a clock alone. The CRM, the intake form, the billing system and the calendar are where most work actually starts, and none of them is on a published list. Carly is already watching those, and moves the moment something happens.
A pipeline that updates itself: Carly workflows
Carly runs workflows in the cloud on a schedule or when something happens:
- Form in, deal open. A website form submission becomes a Bigin contact and a deal in the right pipeline, tagged by source, with a reply sent.
- Signed quote, deal won. When a customer emails back a signed quote, Carly attaches the PDF to their deal and moves it to Won.
- Calls become notes. After a call, Carly adds the summary to the right record and creates the follow-up task.
- Stalled deals chased. Every Monday, deals with no movement in two weeks, with a check-in email drafted for each.
- Invoices in step. When an invoice is paid in Zoho Books or QuickBooks, the matching Bigin record is updated.
Zoho MCP versus Carly on Bigin
| Need | Zoho MCP for Bigin | Carly connector |
|---|---|---|
| Read and update Bigin records | Yes | Yes |
| Set up without building a server | No | Yes, one-click sign-in |
| Keep several Bigin accounts connected | One server per account | Yes |
| Answer a question across accounts | No | Yes |
| Update deals when quotes are signed | No | Yes |
Free Zapier-style workflows; AI agents from $35/month. Start with Carly’s Zoho Bigin integration.
Quick fixes
| Problem | Fix |
|---|---|
| Zoho says the account doesn’t exist | Pick the region that matches your Bigin address, such as eu, in or au |
| The second account connected as the first one again | Sign out of Zoho in your browser before clicking Connect |
| A record went to the wrong account | Name the company or account in your request |
| Carly is added but unused | Enable Carly under + → Connectors for the conversation |
Frequently asked questions
Does Claude work with Zoho Bigin?
Yes. Zoho MCP for Bigin lets you build a server and add it as a custom connector. Through Carly, Claude reaches Bigin with a one-click sign-in and across several accounts.
Can Claude connect to two Bigin accounts?
Yes, through Carly. Connect each Bigin account to Carly and Claude works across all of them in one chat.
Does this work outside the US?
Yes. Choose your Zoho region when you connect, such as eu, in, au or ca, to match your Bigin sign-in address.
Can Claude attach files to Bigin deals?
Yes, through Carly. Claude can attach a file from your email to a record and download attachments.
Related: Zoho MCP · Claude and Zoho · Best AI automation tools for Zoho · HubSpot vs Zoho · Multiple Copper accounts in Claude · Carly’s Zoho Bigin integration
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