API Integration Services

Seamless System Connectivity

Flat 18 offers API integration and bespoke API development for startups and scale-ups. We connect your digital products, automate workflows, and unlock new value by integrating with third-party platforms and services.

Why Trust Flat 18 for API Integration?

  • Senior engineers with broad integration experience
  • Tailored, business-driven solutions
  • Emphasis on reliability, security, and future scalability
  • Transparent process and ongoing support

Our API Integration Expertise

We specialise in connecting disparate systems, automating manual processes, and enabling your digital products to communicate securely and efficiently.

Third-Party API Integration

We integrate your apps with external services—payments, CRMs, analytics, social media, and more—ensuring robust, reliable connections that extend your platform’s capabilities.

Bespoke API Development

Need to expose your own data or functionality? We design and build secure, well-documented APIs that enable easy integration with partners and internal systems.

API Strategy & Architecture

We help you define a future-proof API strategy, designing scalable architectures and clear documentation for maintainability and growth.

Microservices & Modular Systems

We implement microservices architectures, breaking down complex platforms into manageable, independent services that communicate via APIs.

API Security

Security is paramount. We implement authentication, authorisation, rate limiting, and data validation to protect your data and users from threats.

Testing & Monitoring

All integrations are rigorously tested, with real-time monitoring and alerting to ensure ongoing reliability and performance.

Our Integration Process

  1. Requirements Analysis: Define integration goals and business priorities.
  2. API Evaluation: Assess documentation and capabilities of target APIs.
  3. Architecture: Design secure, maintainable integration flows.
  4. Development: Build and document integrations to high standards.
  5. Testing: Validate reliability and performance under real-world conditions.
  6. Deployment: Launch integrations into your production environment.
  7. Documentation: Provide clear, comprehensive technical documentation.
  8. Monitoring & Support: Ongoing monitoring and expert support.

Technologies We Work With

  • RESTful APIs
  • GraphQL
  • SOAP, XML-RPC
  • WebSockets (real-time communication)
  • OAuth, JWT (secure authentication)
  • Swagger/OpenAPI (API documentation)
  • API gateways and management platforms

Connect and Grow

Contact Flat 18 to discuss your API integration requirements. Our expert team will help you streamline systems, automate processes, and add value to your digital products.

Let's Start Your Project

Tell us about your project and we'll get back to you within 24 hours

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Let's Discuss Your Project

We're here to help turn your ideas into reality with our expertise in design and development.