One API for Danish bookkeeping data
Connect e-conomic and Billy once and read invoices, journal entries, accounts and contacts in the same shape — with reports, alerts and signed webhooks on top. Your bookkeeping system stays the source of truth.
Live: e-conomic · Billy (beta) — Dinero coming
Built for the Danish market
Global unified APIs skip the Danish systems. JaKonto speaks e-conomic and Billy, Danish VAT and CVR — and hides the differences from you.
One API, one data model
Invoices, journal entries, accounts and contacts in the same shape whatever the system. Amounts in øre, ISO dates, traceable to the source ID.
Ready-made reports
Revenue and trend, profit and loss, balance sheet, receivables ageing, recurring revenue and top customers — straight from the API.
Alerts and checklists
Duplicates, outliers, missing due dates, overdue receivables and a “ready for month-end?” checklist.
Signed webhooks
HMAC-signed events to your system when a sync finds changes — even for systems without webhooks of their own.
CVR built in
CVR validation (modulus 11) and lookups in the public company register.
Read-only
JaKonto never writes to your books. Credentials are encrypted, and one call removes a connection and its data.
From key to first invoice in minutes
Create a free account, connect e-conomic's demo company in one click, and call the API.
curl -X POST https://jakonto.dk/api/v1/connections/economic-demo \
-H "X-API-Key: jk_live_…"
curl https://jakonto.dk/api/v1/connections/$ID/invoices \
-H "X-API-Key: jk_live_…"
curl https://jakonto.dk/api/v1/connections/$ID/reports/ar-aging \
-H "X-API-Key: jk_live_…"Who is it for?
Software houses and SaaS
Build one integration instead of three and let JaKonto handle each system's auth, pagination and rate limits.
Accountants and bookkeepers
Pull figures from clients across systems into your own reports and checks — without manual exports.
Companies with their own tools
Get bookkeeping data into BI, spreadsheets or internal dashboards through a stable REST API.
Simple pricing
Free plan, no card. Upgrade when you need more connections.
Free
To try and to build · excl. VAT
- 1 connection
- 2,500 API calls/mo
- All features
- No card needed
Starter
One company, a few systems · excl. VAT
- 3 connections
- 25,000 API calls/mo
- All features
- Cancel to end of period
Pro
Products and agencies · excl. VAT
- 15 connections
- 150,000 API calls/mo
- All features
- Cancel to end of period
Business
Platforms with many clients · excl. VAT
- 100 connections
- 1,000,000 API calls/mo
- All features
- Cancel to end of period
Frequently asked questions
Which systems does JaKonto support?
e-conomic (live) and Billy (beta) today. Dinero comes later. One API and one data model for all of them.
Is JaKonto a bookkeeping system?
No. JaKonto reads data from your existing system. We don't post entries or write to your books — your system stays the source.
Does the free plan need a card?
No. The free plan has 1 connection and a monthly number of calls. Paid plans are bought through Stripe and can be cancelled to the end of the period.
Where is my data?
On servers in Germany (EU). Access tokens for your systems are stored encrypted.
JaKonto is an integration and analysis layer — not a bookkeeping system. We read data from your system with your permission; your bookkeeping system remains the system of record. Reports are information, not accounting or tax advice.
Questions, partnership or enterprise? Write to info@lynbro.dk.