Your accounting tools, connected.
21 integrations across accounting software, email, documents, automation, and business registries.
- Import clients and export invoices automatically
- Connect your accounting, email, and automation tools
- Build custom workflows with the public API and Zapier
4.8 from 300+ reviews · No credit card required
All 21 integrations, in one place.
Accounting Software
Import clients, sync data, export invoices
QuickBooks
Import client data and products. Uku's billing generates all invoices and exports them to QuickBooks.
ExploreFortnox
Keep client info up to date and export generated invoices back — billing time drops significantly.
ExploreDirecto
Create invoices in Uku and send them to Directo — missing customers are created automatically.
Exploree-conomic
Automate data collection for advanced billing and export invoices back to e-conomic.
ExploreTripletex
Client info stays in sync; invoices are created instantly and exported back to Tripletex.
ExploreScoro
Automate invoicing with Uku's billing; transfer data to Scoro for in-depth analysis.
Merit Aktiva
Automate data collection for advanced billing and export invoices back to Merit Aktiva.
ExploreSend and receive directly from Uku
Gmail
Log in with Google and send emails from your Gmail address — sent mail lands in your Gmail "Sent" folder.
Microsoft 365
Log in with Microsoft and send from your Microsoft 365 address — visible in the Outlook "Sent" folder.
Document Management
Connect your cloud storage
OneDrive / SharePoint
Automatic folder structures per client, year, and month. Open and edit files from your DMS.
ExploreAutomation
Connect Uku with 1000+ apps
Make.com New
Automate workflows, sync client data, trigger notifications, and update statuses across thousands of apps.
Business Registries
Auto-fill company data
Companies House
Type a company name or number and auto-fill all client details — ideal for efficient client importing.
e-Business Register
Pull client data from the Estonian e-Business Register and never miss important changes.
Danish Business Authority
Pull client data from Denmark and Norway business registers to streamline client entry.
Build custom integrations on API v3.
Uku Public API v3 is live on the Elite plan — a REST API spanning 30+ resources: clients, tasks, time entries, invoices, contracts and more. Two headers to authenticate, HMAC-signed webhooks, and an LLM-ready spec built so AI agents can read and write Uku safely.
- 30+ resources — clients, tasks, time entries, invoices, contracts
- Two headers to authenticate — no login call, no expiring token
- Scoped keys — Read, Edit, or All, with money behind All
- HMAC-signed webhooks, cursor pagination, and an LLM-ready spec
Building on it? The interactive docs, reference and OpenAPI spec are public — no key needed.
$ curl https://app.getuku.com/api/v3/time-entries \ -H "X-Uku-Company: ••••••••" \ -H "X-API-Key: uku_live_••••••••" { "data": [{ "client": "Mint & Ledger OÜ", "task": "VAT return · June", "minutes": 45, "billable": true }], "meta": { "has_more": true, "next_cursor": "eyJ0IjoxNzUz…" } }
Coming soon Uku MCP server
An official Model Context Protocol server so Claude, ChatGPT and Cursor talk to Uku natively — no integration code to write at all. It's in the works.
"I like the modern look, good accessibility and user convenience. It is easy to use and integrate with other accounting softwares."
— Margarita L., verified on G2
Yes, Uku integrations can do that.
Every integrations question we hear from accounting firms — and the answer is always the same.
- Can I import clients from my accounting software into Uku?
- Can I export invoices back to QuickBooks, Xero, or e-conomic?
- Can I sync client data automatically between systems?
- Can I auto-fill client details from Companies House or business registries?
- Can I send emails from Uku using my Gmail or Microsoft 365 address?
- Can I connect Uku with Zapier to automate workflows across apps?
- Can I use Make.com to sync data and trigger notifications?
- Can I build custom integrations with the Uku Public API?
- Can I import products and services from my accounting software?
- Can I create invoices in Uku and send them to Directo or Fortnox?
Any questions about integrations?
What accounting software does Uku integrate with?
Uku integrates with QuickBooks, Xero, e-conomic, Tripletex, Fortnox, Directo, 360 Ksiegowosc, SmartAccounts, FreeAgent, Scoro, and Merit Aktiva. We also connect with business registries like Companies House, Estonian e-Business Register, and Danish Business Authority.
How does the QuickBooks integration work?
Import your client data and products into Uku to keep everything up to date. Uku's powerful billing automatically generates all invoices and exports them to QuickBooks. The sync is bidirectional — changes flow both ways.
Can I use Zapier or Make.com with Uku?
Yes. Zapier and Make.com let you connect Uku with hundreds of other apps and services. Share data, trigger actions, and build workflows that take your practice management to whole new levels.
Does Uku have a public API?
Yes. Uku Public API v3 is live on the Elite plan — a REST API at app.getuku.com/api/v3/ covering 30+ resources: clients, tasks, time entries, invoices, contracts and more. It has read and write access, HMAC-signed webhooks, and a machine-readable OpenAPI spec, so developers and AI agents alike can build on it. The docs are public — no key required.
Can I send emails from Uku using Gmail or Microsoft 365?
Yes. Log in with your Google or Microsoft account and send emails directly from Uku via your Gmail or Microsoft 365 address. Sent emails appear in your regular Sent folder.
How do business registry integrations work?
Simply type a company name or number, match it with the registry (Companies House, e-Business Register, or Danish Business Authority), and auto-fill all client details. This keeps client information accurate and up-to-date.
Is it possible to export invoices back to my accounting software?
Yes. With supported integrations like QuickBooks, Xero, e-conomic, Tripletex, Fortnox, Directo, and Merit Aktiva, Uku generates invoices and exports them back to your accounting software automatically.
Have a question? Contact us — real people answer.
Top-rated by accounting firms, consistently.
Explore the rest of Uku.
Deliver the work
Serve clients
Run a profitable firm




Elevate your efficiency with the powerful yet easy-to-use accounting practice management software.
"Let's create a dream, where the team is happy, clients are well served and profits are fair." — Rain Allikvee, Co-founder of Uku
