Claude Cowork Plugin

Find the money leaks you didn't know you had

SmartSpender turns your Danish bank statements into clear insights. Sync transactions, spot forgotten subscriptions, and get actionable advice to save money — all through conversation with Claude.

Ever wonder where your money actually goes?

Bank statements are fragmented and hard to read. Subscriptions accumulate silently. Forgotten trials convert to paid plans. And there's no easy way to get a clear picture — let alone take action.

Claude Cowork

You: What subscriptions am I paying for?

Claude:

I found 18 active subscriptions totaling 1.847 kr/month:

Netflix — 149 kr/md

Spotify Family — 179 kr/md

Viaplay — 99 kr/md (ingen brug i 3 mdr.)

...15 mere

Get started

Up and running in three steps

1

Download the plugin

Download smartspender.zip from the latest release on GitHub.

Download latest release
2

Upload to Claude Cowork

Open Claude Desktop and go to Cowork. Click the Plugins button on the left sidebar, then upload smartspender.zip as a new plugin.

3

Add your bank account

Start a new Cowork task and type:

/smartspender:add-account nykredit

Follow the prompts to connect your Nykredit account. You'll authenticate directly with your bank via MitID — SmartSpender never sees your credentials.

What SmartSpender does

Sync transactions

Pull transactions directly from your netbank via browser automation. You handle MitID login, Claude handles the export.

Detect hidden subscriptions

Automatically spots recurring charges by analyzing transaction patterns — frequency, amounts, and merchants.

Smart categorization

Understands Danish merchants like Netto, Foetex, TDC, and Fitness World. Categories in Danish, built for your spending.

Actionable savings

Not just data — specific advice. "You have 3 streaming services at 847 kr/month. Cancel Viaplay to save 1.188 kr/year."

Privacy-first

All data stays in your own local CSV files. No external databases, no third-party services. You own everything.

Cancel with assistance

Guided cancellation for 20+ Danish subscription services. Claude navigates the cancellation flow while you confirm.

Commands

Everything starts with a slash command

/smartspender:sync Pull latest transactions from your bank
/smartspender:overview See spending by category with month-over-month changes
/smartspender:subscriptions List all detected recurring charges
/smartspender:cancel [service] Cancel an unwanted subscription with guided automation
/smartspender:report [month] Generate a detailed monthly spending report
/smartspender:analyze Categorize transactions and detect subscription patterns

Your data stays yours

SmartSpender stores all financial data as local CSV files on your machine. No external databases, no cloud uploads, no third-party analytics. Bank credentials are never handled by the plugin — you authenticate directly with your bank via MitID. Every action is logged locally for full transparency.

Local storage

Data lives on your machine in CSV files

No credentials stored

You handle MitID login directly

Full audit trail

Every action logged for transparency

What you need

Claude Desktop

With Cowork enabled (Pro, Max, Team, or Enterprise)

Claude in Chrome

Browser extension for bank navigation

Danish bank account

Nykredit supported now, more banks coming

MitID

For secure bank authentication

Coming soon

On the roadmap for future releases

More banks

Danske Bank, Nordea, Lunar, and more

Receipt scanning

Line-item insights from grocery receipts

e-Boks invoices

Parse utility bills and telecom invoices