API & Integration

Connecting systems, simplifying processes.

REST, GraphQL, and ERP integration — we develop APIs and connect your systems so data flows instead of sitting in silos. Clean interfaces, documented, versioned, and resilient.

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What we deliver

Integration without friction.

REST & GraphQL APIs

API design and development to OpenAPI standards — versioned, documented, and secured with automated contract tests.

ERP Integration

Integration of SAP, Microsoft Dynamics, Sage, and other ERP systems — master data sync, order import, and inventory reconciliation.

Legacy Integration

Connecting legacy systems via SOAP, FTP, CSV import, or screen scraping — without having to rebuild the existing system.

Middleware & ESB

Central integration platforms orchestrating all your systems — event-driven, with retry logic and dead-letter queues.

API Management

Rate limiting, authentication, versioning, and monitoring for your APIs — internal and for external partners.

Real-Time Synchronization

Webhooks, server-sent events, and WebSockets for real-time data changes — no more stale data.

Our Approach

Integration with methodology.

01

Map System Landscape

Documentation of all involved systems, data flows, and dependencies. We draw the map before we build the bridges.

02

API Design

OpenAPI specification, data model, and authentication concept — coordinated with all stakeholders.

03

Implementation & Test

Step-by-step integration with contract tests, monitoring, and fallback strategies for each integration point.

04

Operations & Documentation

API documentation, monitoring dashboards, and runbooks — so your team can manage the integration independently.

Why cierra

Integration that thinks beyond the interface.

We don't just connect systems — we understand the business processes behind them. That means APIs that don't just work technically but actually simplify and accelerate your workflows.

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Let's find out together how AI can move your business forward.

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