About Quadratic
Quadratic packages the hosted Quadratic MCP server as a Cursor plugin for working with Quadratic spreadsheets. It is for Cursor users who need spreadsheet analysis, Python or SQL work, and access to connected database schemas.
Key features
- 01Connects Cursor to hosted Quadratic MCP
- 02Open and summarize spreadsheets
- 03Create spreadsheets from CSV files
- 04Add Python analysis cells
- 05Inspect connected database schemas
- 06Includes spreadsheet workflow guidance
Use cases
- 01Summarize a Quadratic spreadsheet
- 02Create a spreadsheet from a CSV
- 03Analyze sales by month with Python
- 04Inspect a connected Postgres schema
MCP support
The plugin connects Cursor to Quadratic's hosted MCP server over streamable HTTP. Its MCP tools provide spreadsheet workflows and database schema access; authentication can be completed through the server's login tool.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://mcp.quadratichq.com/mcpclaude mcp add --transport http quadratichq-quadratic https://mcp.quadratichq.com/mcp{"mcpServers":{"quadratichq-quadratic":{"type":"http","url":"https://mcp.quadratichq.com/mcp"}}}Open in Cursor{"servers":{"quadratichq-quadratic":{"type":"http","url":"https://mcp.quadratichq.com/mcp"}}}Open in VS Code{"mcpServers":{"quadratichq-quadratic":{"type":"http","url":"https://mcp.quadratichq.com/mcp"}}}{"mcpServers":{"quadratichq-quadratic":{"serverUrl":"https://mcp.quadratichq.com/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
5| Parameter | Type | Required | Description |
|---|---|---|---|
| action | string | Yes | Action to perform: login, confirm_login, set_token, or logout |
| params | any | No | Parameters for the action (see tool description) |
Details
From the project READMEQuadratic MCP Cursor Plugin
This repository packages the hosted Quadratic MCP server as a Cursor plugin. Installing it connects Cursor to Quadratic spreadsheets through the production streamable HTTP MCP endpoint:
{
"mcpServers": {
"quadratic": {
"type": "streamable-http",
"url": "https://mcp.quadratichq.com/mcp"
}
}
}
Included
plugins/quadratic-mcp/mcp.jsonadds the hosted Quadratic MCP server.plugins/quadratic-mcp/rules/provides light guidance for using Quadratic MCP safely.plugins/quadratic-mcp/skills/adds an on-demand spreadsheet workflow skill.plugins/quadratic-mcp/assets/logo.svgis the marketplace logo.
Usage
After installing the plugin in Cursor, open a chat and ask to work with a
Quadratic spreadsheet. If you are not authenticated yet, ask Cursor to run the
Quadratic MCP auth tool with the login action and complete the device auth
flow.
Example prompts:
- "Open my Budget 2026 Quadratic file and summarize it."
- "Create a Quadratic spreadsheet from this CSV."
- "Add a Python code cell that analyzes sales by month."
- "Show me the schema for my connected Postgres database."
Development
Validate the plugin manifest and referenced files:
node scripts/validate-template.mjs
The marketplace manifest lives at .cursor-plugin/marketplace.json. The plugin
manifest lives at plugins/quadratic-mcp/.cursor-plugin/plugin.json.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.