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Services

API and Integration Layer

We design API gateways, event-driven integrations and webhooks that provide secure data flow between internal and external systems.

Most businesses run on several systems: ERP, accounting, payment, turnstiles, CRM. We establish secure, observable and versioned data flow between them. With REST and GraphQL APIs, event-driven architectures and webhooks we make integrations sustainable.

What we deliver

  • REST and GraphQL API design and documentation
  • API gateway, authentication and rate limiting
  • Event-driven integrations and message queues
  • Webhooks and third-party service connections
  • ERP, payment, turnstile and POS integrations
  • Versioning strategy and backward compatibility

How we work

  1. Step 01

    Inventory

    Systems, data owners and flows.

  2. Step 02

    Contracts

    API schemas, events and error model.

  3. Step 03

    Implementation

    Gateway, connectors and test environments.

  4. Step 04

    Monitoring

    Logging, alerts and version management.

Frequently asked questions

Can you integrate with legacy systems that have no documentation?

Yes. We derive an integration plan through database, file transfer or screen-level analysis.

How do you secure integrations?

Authentication, encrypted transport, rate limiting and audit logs are included as standard.

Who manages the APIs afterwards?

We hand over with documentation and monitoring dashboards, or take on maintenance if you prefer.

Contact

Let’s talk about your project

Tell us briefly what you need; we will get back to you shortly with scope, timeline and our proposed approach.

Contact us
BAD Creative TechKüçükbakkalköy Mah. Selvili Sk. No:4 D:48, Ataşehir / İstanbul[email protected]