Quadratic 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.json adds 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.svg is 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.