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io.github.CWhittemore1010/penni-mcp

Official registry AI and agents

AI bookkeeper. Connect QuickBooks to Claude Desktop.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package penni-mcp
Claude Code 
claude mcp add penni-mcp -- npx -y penni-mcp@1.0.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "penni-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "penni-mcp@1.0.1"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. penni-mcp
  2. Quick Start
  3. Claude Desktop Setup
  4. Cursor Setup
  5. What You Can Do
  6. How It Works
  7. API Key
  8. Links
  9. License

penni-mcp

Penni — AI bookkeeper for small businesses. Connect your QuickBooks and manage your books through Claude Desktop or Cursor.

Quick Start

npx penni-mcp

On first run, you'll be prompted for your API key. Get yours at app.penni.so/dashboard/mcp.

Claude Desktop Setup

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "penni": {
      "command": "npx",
      "args": ["penni-mcp"]
    }
  }
}

Config file location:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json

Then restart Claude Desktop and ask: "What's my bank balance?"

Cursor Setup

Settings → MCP → Add Server:

  • Name: penni
  • Command: npx penni-mcp

What You Can Do

Free (connect QBO and go)
  • "What's my bank balance?" — real-time balances from QuickBooks
  • "Show me my P&L for this month" — Profit & Loss report
  • "Who owes me money?" — open and overdue invoices
Paid ($149/mo at penni.so)
  • "Create a $500 expense for AWS under Software" — post expenses to QBO
  • "Invoice Acme Corp $2,000 for consulting, due May 1st" — create and send invoices
  • "Ask Penni: what's my biggest expense category?" — AI-powered bookkeeping Q&A

How It Works

Penni connects to your QuickBooks Online account through a secure API. Your data lives in YOUR QuickBooks — not on our servers. If you stop using Penni, your books are exactly where they've always been.

API Key

You can also set your API key via environment variable:

PENNI_API_KEY=your_key_here npx penni-mcp

Or pass it as a flag:

npx penni-mcp --key your_key_here

The key is saved to ~/.penni/config.json after first run.

License

MIT

Frequently asked questions

What is io.github.CWhittemore1010/penni-mcp?

AI bookkeeper. Connect QuickBooks to Claude Desktop.

How do I install io.github.CWhittemore1010/penni-mcp?

It runs on your machine. In Claude Code: claude mcp add penni-mcp -- npx -y penni-mcp@1.0.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.CWhittemore1010/penni-mcp need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.CWhittemore1010/penni-mcp open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.CWhittemore1010/penni-mcp?

It is published by CWhittemore1010. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.