Integrations for payments, webshops and accounting
For companies whose orders, payments, stock and accounting live in separate systems. We connect them by API, so nobody retypes data or checks bank statements by hand.
- most integrations
- 500-2,000 EUR
- often faster
- 2-6 weeks
- the code, from final payment
- Yours
Sounds familiar?
- Someone checks the bank statement and marks orders as paid by hand.
- Stock in the webshop and in the warehouse never quite match.
- Orders from a marketplace or a partner are retyped into your own system.
- Accounting gets its data once a month, from an export.
- Payments arrive by card, transfer and payment link, and someone has to put them together.
What we build
- 01
Card payments and payment links
We have integrated CorvusPay, WSPay, PBZ, Zagrebačka banka (Zaba), Raiffeisen (RBA), Splitska banka (now OTP banka) and HT PayWay, plus Braintree, PayPal, Stripe, Adyen and Mollie. Payment links and installments where the product needs them.
- 02
Bank transfers matched to orders
Bank statements are parsed and matched to orders or bookings automatically.
- 03
Webshop and marketplace backends
Stock and order sync with your warehouse and accounting, checkout flows, and marketplace or partner APIs. We do not build storefronts.
- 04
Couriers and partner APIs
Shipments and orders exchanged with couriers and partners directly, instead of through email and spreadsheets.
- 05
Data in any direction
We import an Excel file and convert it to any format, fetch data from an API and show it as analytics or reports, and exchange data between any two systems. Accounting programs such as Pantheon and Synesis are examples of what we connect to.
- 06
ERP and accounting connections
Your ERP, accounting program and webshop exchange data on their own. Where the law requires it, we also connect fiscalization 1.0 and 2.0 and e-invoicing (eRačun).
Examples from our work
All case studies- Portland, Oregon (remote) · 2020-2024
Rally
+38%revenue for one merchant from post-purchase offers
The backend for a one-click checkout that replaces the platform’s own and stays in sync with BigCommerce, Swell and Salesforce Commerce Cloud both ways. Orders and stock update in the merchant’s store in real time. One merchant saw +38% revenue from post-purchase offers.
Read the case study - Zagreb · 2010-2015
iMall
~300stores on one marketplace
A marketplace of nearly 300 stores. Card payments through the major Croatian card processors, PayPal, and delivery through integrations with all the major Croatian couriers.
Read the case study - Story Travel
VibeCRM
30,000+customers recovered from the old system
Bank statements from two banks are parsed and matched to bookings automatically, so payments reconcile without manual work. Card payments, deposits and installments run online.
Read the case study
When you don’t need us
If a ready-made connector or plugin already moves your data between two systems, use it. It is cheaper and someone else maintains it. We are worth a call when the connector does not exist, does not cover your process, or breaks every time one side changes. We will tell you which case you are in during the first call.
How a project runs
- 1
First call
30 minutes, free. You tell us which systems you use and where data is retyped; we tell you whether a connector already does the job.
- 2
Design
We describe the data flows, the systems involved and what happens when something fails, before we quote.
- 3
Fixed price and timeline
Based on the design, so the scope is clear on both sides. If the build takes longer than we estimated, that is on us; changes you ask for later are quoted separately.
- 4
Build
Weekly demos. AI coding agents write much of the code; a senior engineer designs the system and reviews every change.
- 5
Launch and support
8-hour response time and 99.5% uptime as standard. Bug fixes are free, and up to 2 hours of small changes a month are included.
Price, timeline, ownership
- Price
- 500-2,000 EUR
- Most integrations cost 500-2,000 EUR.
- Timeline
- 2-6 weeks
- 2 to 6 weeks from the first call to launch for most projects, often faster for a single connection.
- Ownership
- Yours
- The code we write for you is yours from the final payment: host it anywhere, or hand it to another developer. Products we maintain for several clients, like VibeCRM, are licensed instead.
- Hosting
- Germany
- Hetzner servers in Germany, or your own infrastructure.
Questions about integrations
Most integrations cost 500-2,000 EUR. You get a fixed price after the design phase.
Yes. We have integrated CorvusPay, WSPay, PBZ, Zagrebačka banka, Raiffeisen, Splitska banka (now OTP banka) and HT PayWay, plus Braintree, PayPal, Stripe, Adyen and Mollie. We also build payment links and bank-transfer matching.
Yes. We sync stock and orders between the webshop, the warehouse and accounting software through their APIs. We build the backend, not the storefront.
Yes. We convert Excel files to any format, show data from an API as reports, and exchange data between any two systems, for example with accounting programs such as Pantheon or Synesis.
Yes, we have built fiscalization 1.0 and 2.0 and e-invoicing integrations. If that is your main need, mention it on the first call.
If a ready-made plugin or connector covers your process, use it. We will say so in the first call, which is free.
You do, from the final payment. You can host it anywhere or hand it to another developer, so you are never tied to us. Products we maintain for several clients, like VibeCRM, are licensed instead.
Is someone retyping data between your systems?
Tell us what you’re working on. We’ll give you an honest assessment, a realistic scope, and a path forward - no obligation.
Free 30-minute consultation · No commitment required · Typically respond within 24 hours