Use all tools within your favorite AI environment
Built for
- Claude
- ChatGPT
- Gemini
- Grok
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Your back office
Your books
Use cases
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Learn
Companion apps
Useful tools
Connected tools
For freelancers, studios and agencies
Back office tools reimagined: time, invoices, dunning, receipts and books in one easy to use app or integrated into the AI tools you’re already using.
Invoices. A week of hours becomes a sent invoice, then a paid one. A few clicks, start to finish.
Time. One timer for every client, project and teammate.
Bookkeeping. Receipts match themselves. Month-end is one click.
AI chat. The same work, by chat in Claude, ChatGPT, Gemini or Grok. Nothing is sent without your OK.
Built for
Start on your own with the hours, invoices and receipts of a single client, and keep the same workspace as you add clients, teammates and a bookkeeper. Backbone takes care of the repetitive work, from invoices to reminders to month-end, so you always see where your business stands and can grow at your own pace.
Your day in one line
Overdue invoices, hours not yet billed and documents waiting for you, each one a click away.
Overdue · 2 invoices€5,458.00
Ask, and it is done
Type "Who hasn't paid yet?" or "New invoice for Kinetik Studio" and Backbone works on your real numbers.
Outstanding · 4 invoices€12,001.00
Hours that bill themselves. Every minute you track is already on the next invoice, at the right rate and with the right VAT.
From hours to invoiceBooks ready when your bookkeeper asks. Receipts find their payments as they come in. Month-end is one ZIP, named and sorted the way your bookkeeper likes it.
How the export worksHand the admin to your AI. Ask Claude, ChatGPT, Gemini or Grok to log time, draft the invoice or find who still owes you. You confirm, Backbone does the rest.
Connect your AIJust use the app. Time, invoices, dunning, receipts and books in one fast, calm workspace. Nothing to set up and nothing to connect.
See it in actionUse it from your AI. Add Backbone to Claude, ChatGPT, Gemini or Grok as a custom connector. Nothing is sent without your OK.
Connect your AIFor builders. Add the same MCP connector to Claude Code and other coding tools. A public API and a CLI are coming soon.
See the builder optionsChallenges every founder and business knows.
I forget to log my hours.
Start it from the top bar, the Mac menu bar or a quick message to your AI. Every minute lands on the right client.
I write invoices in Word.
Billable time becomes line items with the right rate and VAT, checked for every mandatory detail. You edit it right on the page.
I chase payments by hand.
A friendly reminder first, firmer notices later, and it all stops the day the payment lands. Or ask "who still owes me?".
My receipts live in a shoebox.
Upload PDFs and photos once. Each receipt is read, renamed and matched to the payment behind it.
My bookkeeper waits for me every month.
Invoices, receipts and statements in the folder tree your bookkeeper asked for, with a list of what is still open.
Your AI tools
Your bank
Upload the statement your bank already gives you.
Your bookkeeper
Month-end in one file, or a login of their own.
Your clients
Invoices and reminders go out from Backbone.
Desktop timer
Start and stop the timer from your Mac menu bar.
Your own setup
For developers and agencies.
Hosted in the EU, encrypted, and kept strictly apart from every other workspace.
Roles apply to people and AI alike. The assistant drafts; you confirm before anything is sent.
Checked against §14 UStG before sending. Once sent, the PDF is written once and never changes (GoBD).
Start the trial and send a real invoice today. Connect your AI tool whenever you like.
7 days free, card required. €0.00 due today.
Three plans from €19 a month, VAT included. 2 months free with yearly billing.
PricingAdd Backbone to Claude, ChatGPT, Gemini or Grok in a few minutes.
Setup guideComing soon