Your QuickBooks, supercharged — by Claude, on your terms.
⚡ It all runs on your computer
Download for macOS Download for Windows Claude Desktop extension (.mcpb)

Windows builds are not yet code-signed — SmartScreen will warn; choose “More info → Run anyway”.
Verify any download against SHA256SUMS.txt on the release page.

There is no KiMagic cloud. That's the point.

Your computer
Claude Desktop / Claude Codeany MCP client
⇄
KiMagiclocal MCP server · 127.0.0.1
⇄
QuickBooks OnlineIntuit's API — directly

KiMagic is a small app that lives in your menu bar and serves the Model Context Protocol on localhost. When Claude asks your books a question, the request goes from Claude, to KiMagic, straight to Intuit — and nowhere else. No middleman server, no proxy, no account to create, no telemetry. If you close your laptop, KiMagic is off. That's the whole security model, and it fits in one sentence.

Everything stays local

✓Your own Intuit app keys

You create your own (free) app at developer.intuit.com and paste its Client ID and Secret into KiMagic. They're encrypted with your OS keychain and never transmitted anywhere except directly to Intuit's OAuth endpoint.

✓Tokens in your keychain

QuickBooks access tokens are encrypted at rest using macOS Keychain / Windows Credential Manager. No database, no sync, no copy on any server.

✓Localhost only

The MCP server binds to 127.0.0.1 exclusively, with DNS-rebinding protection. Nothing on your network — let alone the internet — can reach it.

✓One tiny exception, by design

Intuit requires an HTTPS redirect for sign-in, so a static page on this site bounces the OAuth response straight back to 127.0.0.1. It's ~100 lines you can read — it stores nothing, and the secret token exchange still happens on your machine.

What Claude can do with your books

query_books — SQL-style queries over any entity
get_report — P&L, Balance Sheet, Cash Flow, agings…
get_company_info · get_entity · search_customers
create_invoice · send_invoice
record_payment · create_journal_entry
cash_flow_forecast — runway & projections
month_end_checklist — close faster
find_anomalies — duplicates, odd amounts, gaps
list_connections — multi-company, one default

Plus resources (chart of accounts, recent transactions) and guided prompts (financial review, month-end close, AR follow-up, tax prep, vendor analysis).

Up and running in three steps

1Install & add your keys

The wizard walks you through creating your Intuit developer app and pasting its credentials — about five minutes, once.

2Connect your companies

Sign in to QuickBooks in your browser. Bookkeeper with many clients? Connect them all and switch by name in conversation.

3Hook up Claude

One-click .mcpb for Claude Desktop, a one-liner for Claude Code, or a plain localhost URL for any other MCP client.

Built to be verified, not trusted

Software that reads your books should have nothing to hide. KiMagic's complete source is public. Every binary above is compiled by GitHub Actions from a tagged commit — you can read the exact pipeline, match the checksums in SHA256SUMS.txt, or skip our binaries entirely and build it yourself with npm install && npm run dist:mac. macOS builds are Developer ID-signed and notarized by Apple.