API Development & Integration
We develop customized interfaces and APIs that enable seamless communication between different systems and applications.
Our API Services
REST and GraphQL APIs
Development of modern, scalable APIs for your applications.
- RESTful API Design
- GraphQL Schemas
Microservice Architectures
Design and implementation of scalable microservice solutions.
- Service Decomposition
- API Gateway
System Integration
Connection of ERP, CRM and other business systems.
- ERP Integration
- CRM Connection
Frequently Asked Questions
FAQ about API Development & Integration
Basics & Architecture
REST or GraphQL – which is better for us?
REST is the standard and widely supported. GraphQL is better for complex, nested data structures and mobile apps. We advise based on your concrete use cases.
Can you connect to any system?
Usually yes. Many systems have APIs, for others we build adapters. Even with old legacy systems without interfaces, we find solutions – via database access, file exchange, or RPA.
Standard Integrations
Can you connect SAP and Salesforce?
Yes, that's a classic. We synchronize customer and order data bidirectionally. Also: SAP with shops, CRM systems with marketing automation, ERP with logistics.
Do you also develop APIs for apps and partners?
Yes, we design and develop APIs that other applications or partners can use. Including documentation, authentication, rate limiting, and versioning.
Plan integration? We analyze your system landscape and develop a clean integration architecture.
Schedule ConsultationSecurity & Reliability
How do you secure the interfaces?
Through OAuth 2.0 or API keys for authentication, TLS encryption for transport, and proper validation. For sensitive data additionally: encryption at rest, audit logging, and IP whitelisting.
What happens if an interface fails?
We implement monitoring that reports errors early. Data is buffered and resent when the target system is available again. For critical processes: automatic fallbacks and alarm systems.
Costs & Timeline
What does an interface development cost?
Strongly depends on complexity: Simple standard integrations from 5,000 €, complex enterprise integrations with multiple systems correspondingly more. We start with a Proof of Concept if needed.
How long does an integration project take?
From a few days for standard APIs to months for complex enterprise landscapes. We usually start with a Proof of Concept to verify feasibility quickly.
Questions about integrations? We advise on architecture, security, and costs – from experience with many enterprise projects.
Contact UsRelated Topics
Complementary Services from Other Areas
These services are frequently requested together with API & Interface Development or complement it thematically.
Software & Platforms
Automation & Workflows