APIs & Integrations Interfaces that truly connect your systems.

We develop APIs and integrations that reliably connect your software, data sources and platforms. They are technically sound, transparent and implemented in such a way that processes run smoothly on a day-to-day basis.
+10 years
Agency experiende
5,0★
Google rating
> 200
Successful projects

What is it for?

Good integrations not only save clicks, but also prevent errors.

Many companies already use several digital systems: online shop, ERP, CRM, PIM, inventory management, portal, database, fulfilment solution, payment provider or external platforms. The problem does not arise from the individual tools, but from the gaps between them.

If data does not flow automatically, your team has to do the work manually. This costs time, leads to errors and makes processes difficult to control. This is exactly where we come in.

We develop interfaces and API integrations that connect systems effectively, transfer data reliably and document technical workflows clearly.

  • Custom-developed APIs and interfaces
  • Integration of ERP, CRM, PIM, online shops, portals and databases
  • Integration of external platforms, tools and services
  • Automated data flows between existing systems
  • Error handling, logging and monitoring
  • A maintainable technical foundation for long-term further development

Services

APIs, interfaces and system connections, all from a single source.

We do not develop integrations in isolation, but with your systems, data and workflows in mind. This results in connections that are technically sound and will fit seamlessly into your software landscape in the long term.

API development

Custom APIs for applications, portals, online shops or internal systems – clearly structured, well documented and designed for future expansion.

System integrations

Integration of ERP, CRM, PIM, inventory management, online shops, portals, databases or external platforms.

Data Transfer & Synchronisation

Automated transfer of customer, product, order, price, stock or process data between different systems.

External services & platforms

Integration of payment services, fulfilment solutions, marketplaces, analytics tools, accounting software, newsletter systems or industry-specific software.

Clearly categorised

APIs connect systems. Data integration makes data usable.

APIs and integrations often form the technical basis for systems to communicate with one another. They ensure that data can be transferred, retrieved or updated.

Data integration often goes a step further: it focuses more on data quality, data models, the consolidation of different sources, data transformations and the question of how information can be put to good use across systems.

In many projects, the two go hand in hand. We therefore ensure not only that an interface functions technically, but also that the underlying data is clearly structured and can be used effectively in the target system.

How we work

From the initial concept for an interface to a robust integration.

We don’t start with the code, but with the process behind it. Only once it is clear which systems are involved, what data needs to flow and what must happen in the event of an error can a reliable technical solution be developed.

1

Understanding systems and processes

We identify which systems need to be connected, what data is required, and where manual work, duplicate data entry or errors currently occur.

2

Planning data flows and interfaces

We define data structures, responsibilities, transfer logic, technical requirements and realistic error scenarios. This results in an integration that works beyond the short term.

3

Developing integration

We implement APIs, interfaces, data transfers and synchronisation from a technical perspective and reliably connect the relevant systems with one another.

4

Testing, Operation & Further Development

We test typical scenarios, review data flows and take into account logging, error handling and maintainability. Once the system is up and running, we support any adjustments, enhancements and technical maintenance.

Additional services

Where APIs are particularly effective.

Interfaces often form the technical basis for larger digital solutions. That is why APIs and integrations work closely with other services.

Data integration

When data from various sources needs to be consolidated, cleaned, transformed or made available across systems.

More on data integration

E-commerce automation

When online shops, ERP, PIM, inventory management, dispatch, marketplaces or supplier processes need to work together seamlessly through automation.

More on e-commerce automation

Web portals

When customers, partners or internal teams need to access data, processes or functions securely via a portal.

More about web portals

Key questions about APIs, interfaces and integrations.

Good to know.

In principle, a wide variety of systems can be integrated, provided they offer technical access options. These include, for example, ERP, CRM, PIM, stock management systems, online shops, databases, portals, marketplaces, delivery services, payment providers and external platforms.

Yes. We develop bespoke APIs when existing systems need to provide data or functions. In doing so, we ensure clear structures, security, documentation and long-term scalability.

Yes. We can analyse, stabilise, expand or restructure existing interfaces. This is particularly useful when integrations are prone to errors, have been poorly documented or no longer fit with current processes.

A good integration should detect errors and make them traceable. That is why, depending on the project, we incorporate logging, error messages, retry logic and clear processes for dealing with incorrect data or connection issues.

Yes. Depending on the requirements, data can be transferred in one direction or synchronised between several systems. It is important to clarify unequivocally which system is the primary source for which data.

Yes, if it reduces the amount of manual work on a regular basis or helps to prevent errors. Not every integration needs to be large and complex. Often, a targeted interface is enough to significantly simplify a recurring process.

Ready when you are

Tell us where the problem lies.

Is a process taking too long? Is a system not integrating properly? Is a solution missing? Describe it in one sentence and we’ll tell you what’s possible.

Telephone: +49 341 24892188
Email: ed.ytilibuoy@onullfni