Fortnox × Claude
Ask Claude. Get it done in Fortnox.
Find invoices, see what's paid and pull the numbers, or run the whole books. In plain language, right inside Claude. You approve in the app before anything is written to Fortnox.
Integration partner Built by Sidcom, not published by Fortnox or Anthropic.
What is the Claude Fortnox Connector?
The Claude Fortnox Connector links Anthropic's Claude to your Fortnox account so you can run your books in plain language. Ask Claude to find invoices, post entries or prepare VAT. Claude proposes each change and your Claude app asks for your approval before anything is written to Fortnox. It works in Claude Desktop, Claude Code and the mobile apps, from 99 SEK per user a month via the Fortnox marketplace.
// capabilities
Your Fortnox, in plain language.
Everything you'd otherwise dig through menus for is now a sentence away, in the Claude apps you already use. You don't have to be an accountant.
Ask anything
Find customers, suppliers, invoices and amounts. Ask like you'd ask a colleague, without hunting through menus.
Which customer invoices fell due last month?
Create and approve
Create customer invoices, post entries and approve supplier invoices for payment. Claude fills in the details, you approve before anything is saved.
Post the receipt I just uploaded.
Pull the numbers
Summarize, compare periods and surface key figures, without exporting to Excel.
How much did we invoice in Q1?
// at_a_glance
Claude Fortnox Connector at a glance.
- Price
- 99 SEK per user / month, via the Fortnox marketplace
- How you work
- Plain language, right inside Claude
- Writes
- You approve every write in the app before it is sent
- Traceability
- All changes go through your Fortnox user and show up in Fortnox
- Data
- Your books are stored only in Fortnox, nothing is kept at Sidcom
- Works in
- Claude Desktop, Claude Code and the mobile apps
- Support
- Email and phone in Swedish and English, email answered same business day
- Supplier
- Sidcom, a Swedish company, built for GDPR
// security
You ask. Claude proposes. You decide.
Your books are stored in Fortnox and nowhere else. You control every action.
Fortnox OAuth
No passwords stored with us. All sign-in goes through Fortnox.
Your own permissions
Claude can do exactly what you can do in Fortnox, no more, no less.
You have the final say
Claude proposes, and your Claude app asks for your approval before writes are sent to Fortnox.
Traceable in Fortnox
All changes are made through your own Fortnox user and show up in Fortnox as usual.
Swedish supplier, built for GDPR
Sidcom is a Swedish company. No bookkeeping data is stored at Sidcom.
// connect
Already licensed? Connect now.
Add the address to your Claude app and you're set. Sign in with Fortnox on first use.
https://fortnox.sidcom.app/mcp Questions, answered.
What can Claude do in Fortnox?
Essentially all of Fortnox is available. Claude can search customers, suppliers and invoices, see what's paid and unpaid, create customer invoices, post entries, approve supplier invoices for payment, and export bookkeeping data as SIE files. You approve every write in the app before it is sent.
Can Claude change my books without me?
No. Claude proposes changes and your Claude app asks for your approval before writes are sent to Fortnox.
Is my data safe?
Yes. You sign in with Fortnox OAuth and Sidcom never stores your password. Claude only acts within your existing Fortnox permissions, and all changes are made through your own Fortnox user and show up in Fortnox.
Which Claude apps does it work with?
Claude Desktop, Claude Code and the Claude mobile apps.
How is a license counted?
A license is a user seat in one Fortnox company. If you use Claude across several Fortnox companies you need a license per company. Fortnox checks your license and permissions each time you connect.
How is it billed?
99 SEK per user per month via the Fortnox marketplace. No setup fees and no per-call charges. 30-day money-back guarantee.
Connection not working?
Quick checklist: have you bought the license in the Fortnox marketplace, activated it via the activation link, and turned on the integrations module in Fortnox? Otherwise test with only the "Company information" scope to rule out a license issue with one of Fortnox's other modules.
Less clicking. More done.
What you'd otherwise click through in Fortnox now takes a single sentence. Add Claude Connector from the Fortnox marketplace and get going in minutes.
Activate in Fortnox