QuickBooks Online MCP server: what exists in September 2026
Yes, there is an official QuickBooks Online MCP server, and it is the most complete one any vendor on this list has shipped. Intuit publishes it as an open-source local server, and QuickBooks is also available inside Claude and ChatGPT as a hosted connector. The catch for a Canadian firm is that the hosted Claude connector is restricted to US customers, so the local server and the API are the routes that work from Canada today.
Status, verified September 2026
Intuit's local MCP server is at github.com/intuit/quickbooks-online-mcp-server. It runs on your machine over stdio, authenticates with your own Intuit developer app and OAuth 2.0 tokens, and exposes 144 tools that read and write QuickBooks Online accounting objects (customers, invoices, bills, payments, accounts, reports). Intuit still labels it an early preview, as it did when it announced the server in October 2025. It works with any MCP client that supports local servers, including Claude Desktop and Claude Code.
The hosted QuickBooks connector for Claude went live on April 23, 2026 and gained write actions such as invoicing and payroll on July 28, 2026, alongside a ChatGPT app. Intuit's help article for the Claude connector, updated August 5, 2026, states that it is currently available to US customers only. Canadian QuickBooks Online Accountant subscribers cannot enable it yet.
Underneath both is the QuickBooks Online REST API v3, OAuth 2.0, with Canadian companies supported through the same developer program. Zapier also lists a QuickBooks Online server in its MCP catalogue, which is a third-party wrapper over Zapier actions rather than an Intuit product.
Status verified September 2026. We re-check this page quarterly; if you find the Claude connector available in Canada before we do, tell us.
What an agent can do with QuickBooks Online today
For a Canadian firm, an agent connected through the local MCP server or the API can read a client's books, pull trial balances and general ledger detail, list customers and vendors, and create or update transactions. On the T1 side, that matters for self-employed clients whose T2125 comes from a QuickBooks Online file: an agent can pull the profit and loss for the calendar year, reconcile it against what the client reported on the intake questionnaire, and flag the categories a preparer should look at before anything is keyed into the return.
What the QuickBooks Online server does not touch is tax preparation. Intuit's Canadian T1 products, ProFile and the Pro Tax module inside QuickBooks Online Accountant, have no MCP server and no public API for returns; we cover them on the ProFile and Pro Tax MCP server page. Pro Tax can import GIFI from QuickBooks Online and carry forward from other suppliers, but those are features of the desktop and web products, not tools an agent can call.
Where Armada T1 fits
Armada T1 is the system of record for Canadian T1 intake, with its own MCP server. The same agent that reads a client's QuickBooks Online books can record the business income summary, the vehicle and home-office figures, and the supporting statements as validated section records in the client's Armada T1 file, with the source stored alongside each figure. The file tracks what is still outstanding, and the agent routes each open question as a task to the preparer or to the client. Armada T1 does not calculate or EFILE returns; the completed file is handed off to the CRA-certified tax software your firm already runs, ProFile and Pro Tax included.
How to check for changes
Watch the GitHub repository for the preview label to come off, and the Claude connector help article for the US-only line to change. Intuit's Canada developer topic is where Canadian API differences are posted. For the rest of the Canadian stack, see MCP servers for Canadian tax and accounting software.
This page describes third-party products as documented by their vendors in September 2026 and is not affiliated with or endorsed by Intuit. QuickBooks, QuickBooks Online, ProFile and Pro Tax are trademarks of Intuit Inc. Claude is a trademark of Anthropic, PBC. ChatGPT is a trademark of OpenAI. Product availability changes; verify with the vendor before relying on it.
