Getting started

What is Excel++ MCP?

Excel++ MCP is a Model Context Protocol server that lets AI agents and applications create, edit, and analyze Excel workbooks programmatically. It exposes 28 tools covering the full workbook lifecycle — from creation to charts — via a JSON-RPC API.

Transport modes

Excel++ MCP supports two connection modes:

• HTTP — JSON-RPC over POST to /mcp. For production SaaS usage.
• stdio — Standard I/O for local MCP clients like Claude Desktop.

Quick start (HTTP)

1. Get an API key from the Fleet Hub.

2. Send a request:

curl -X POST https://mcp.excelplusplus.uncomfortablebudget.com/mcp \
  -H "Authorization: Bearer epp_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": { "name": "create_workbook" },
    "id": 1
  }'

Quick start (stdio)

Run the server locally with your API key:

EXCELPP_API_KEY=epp_your_key npx excelplusplus-mcp

Next steps

• Tool reference — all 28 tools with parameters
• Client setup — Claude Desktop, Cursor, and more
• API reference — JSON-RPC protocol details