Quadratic MCP: Connect your spreadsheets to ChatGPT, Claude, and Cursor

Your sheets, inside every AI

Quadratic MCP gives your favorite AI client a direct, secure line to your spreadsheets.

Read any Quadratic sheet

Point your AI at a file, tab, or range. It pulls values, headers, and context directly from your Quadratic workspace.

Write cells, formulas, and charts

Let ChatGPT or Claude build models, add formulas, and generate charts in Quadratic without leaving the chat.

Run Python & SQL on your data

Your AI can execute Python, SQL, and formulas inside Quadratic to answer questions grounded in real numbers.

OAuth-secured access

Signed in to your Quadratic account. Revoke any AI client at any time from your Quadratic settings.

How it works

Four steps, two minutes. No servers to run, no configs to maintain.

Pick your AI client

ChatGPT, Claude, Cursor, VS Code, Windsurf — any MCP-compatible app works.

Install the MCP

Click the one-click install for Cursor or VS Code, or follow the 30-second setup for Claude and ChatGPT.

Sign in with Quadratic

Authorize your AI client with OAuth. The MCP connection uses your existing Quadratic permissions.

Chat with your sheets

Ask your AI to read, update, or build spreadsheets in Quadratic. No switching tools.

Already have an Excel or Google Sheets file?

Import it into Quadratic and every AI client gets MCP access to your spreadsheet. No Sheets API, no service accounts, no local Python servers.

Excel MCP

No official Microsoft Excel MCP exists. Drop your .xlsx into Quadratic and use ChatGPT, Claude, or Cursor to read, edit, and analyze it.

Excel MCP guide

Google Sheets MCP

No official Google Sheets MCP exists. Export your Sheet to Quadratic and use ChatGPT, Claude, or Cursor to read, edit, and analyze it.

Google Sheets MCP guide

Try Quadratic in your AI chat

Once the MCP is installed, paste any of these into ChatGPT, Claude, or Cursor.

Summarize the key trends in my Q3 sales sheet in Quadratic.

I pulled your Q3 sales sheet from Quadratic. Revenue is up 18% vs Q2, driven mostly by Enterprise. SMB growth slowed. Here’s the summary:

Q3 2026 segment summary

Segment	Revenue	QoQ	Deals
Enterprise	$1.84M	+27%	42
Mid-Market	$920K	+12%	68
SMB	$410K	+3%	154
Total	$3.17M	+18%	264

Quadratic MCP FAQs

What is Quadratic MCP?

Quadratic MCP is our official Model Context Protocol server, hosted at https://mcp.quadratichq.com/. It gives AI clients like ChatGPT, Claude, Cursor, and VS Code secure, authenticated access to read and write your Quadratic spreadsheets from any chat.

What is MCP?

Model Context Protocol (MCP) is an open standard developed by Anthropic that lets AI tools connect to third-party services through a unified interface. Instead of writing a custom integration for every AI client, Quadratic exposes one MCP server that any compatible AI can talk to.

Which AI clients can I use it with?

Any MCP-compatible client. We provide one-click install for Cursor and VS Code, and a 30-second setup guide for ChatGPT, Claude, and Windsurf. You can also configure it manually in any client that supports remote Streamable HTTP MCP servers.

Is it secure?

Yes. The Quadratic MCP server uses OAuth 2.0 to authenticate each AI client with your Quadratic account. Your AI only sees the files and data you already have access to, and you can revoke any connected client at any time from Quadratic settings.

Do I need to install anything locally?

No. Quadratic MCP is a remote MCP server running at https://mcp.quadratichq.com/. There’s no binary to download, no Node.js to install, and no API keys to manage. Just point your AI client at the URL.

Does it cost extra?

No. Quadratic MCP is included with every Quadratic plan, including the free tier. You only need a Quadratic account and an AI client of your choice.

Can I use it with ChatGPT Free?

Custom connectors in ChatGPT currently require a Plus, Pro, Business, or Enterprise subscription. You can still use Quadratic MCP from Claude, Cursor, VS Code, or any other supported client on a free tier.

Can I build my own integration with Quadratic MCP?

Yes. Because Quadratic MCP follows the open Model Context Protocol spec, you can build custom agents, bots, or scripts on top of it. See the MCP docs at modelcontextprotocol.io for implementation details.

Quadratic MCP

Connect your Quadratic spreadsheets to ChatGPT, Claude, Cursor, VS Code, and any other MCP-compatible AI tool. One click to install.