Once connected, Claude can read and edit any Quadratic sheet you have access to — pull values, write formulas, build charts, and run Python or SQL against your data, all from a normal Claude conversation.
How to add Quadratic MCP to Claude
- 1
Make sure you have a Claude Pro, Max, Team, or Enterprise plan
Remote MCP connectors are available on Claude Pro, Max, Team, and Enterprise plans. Free accounts can still connect via the Claude Desktop bridge (see advanced setup below). - 2
Open Claude Settings → Connectors
In Claude.ai or the Claude desktop app, click your avatar and choose Settings, then Connectors. Or jump straight there: - 3
Click "Add custom connector"
Scroll to the bottom of the Connectors page and click Add custom connector. You'll see a dialog asking for a name and server URL. - 4
Paste the Quadratic MCP URL
Name the connector Quadratic and paste the Quadratic MCP server URL.MCP server URL - 5
Authorize with your Quadratic account
Click Connect. Claude will open a new tab to sign you in with your Quadratic account via OAuth. Approve access and you're done. - 6
Use Quadratic in any chat
In a new Claude conversation, click the tool icon and enable Quadratic. Try a prompt like "Summarize my Q3 sales sheet in Quadratic" or "Build a 3-year SaaS model in a new Quadratic sheet."
Using Claude Desktop without a Pro plan?
Claude Desktop supports remote MCP servers through a local bridge. Add the following to your claude_desktop_config.json file (found via Settings → Developer → Edit Config), then restart Claude.
claude_desktop_config.json
{
"mcpServers": {
"quadratic": {
"command": "npx",
"args": ["mcp-remote", "https://mcp.quadratichq.com/"]
}
}
}Claude + Quadratic MCP FAQs
Does Claude MCP work on the mobile app?
Yes. Once you’ve added the Quadratic connector on Claude.ai, it’s available in the Claude mobile app as well.
How do I remove the Quadratic connector from Claude?
Go to Settings → Connectors, click the Quadratic connector, and choose Remove. You can also revoke access from your Quadratic account settings.
Can Claude edit my Quadratic sheets, not just read them?
Yes. The Quadratic MCP server supports both read and write operations, so Claude can add cells, update formulas, create new sheets, and run code against your data when you ask it to.
What is the Quadratic MCP URL?
The Quadratic MCP server is hosted at https://mcp.quadratichq.com/. Paste this URL into your Claude MCP configuration.
Is Quadratic MCP free?
Yes. Quadratic MCP is included with every Quadratic plan, including the free tier. You only need a Quadratic account and a supported AI client.
Is it secure?
Yes. Quadratic MCP uses OAuth 2.0 to authenticate each AI client with your Quadratic account. Your AI only sees files and data you already have access to, and you can revoke any connected client at any time in Quadratic settings.
What can I do with Quadratic MCP in Claude?
Once connected, Claude can read values from your Quadratic sheets, write cells and formulas, run Python and SQL, and build charts. Ask Claude any question about your spreadsheets the same way you’d ask about a PDF or URL.
Which other AI clients support Quadratic MCP?
Cursor, VS Code, Claude, ChatGPT, and Windsurf all work with Quadratic MCP today, plus any other client that supports remote Streamable HTTP MCP servers. See the full list.
