API Development & Integration

Connect everything. Automate anything.

Modern businesses run on interconnected systems — and APIs are the connective tissue. Whether you need to build an API that powers your mobile and web platform, or integrate your systems with third-pa...

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API Development & Integration
Done Right

Modern businesses run on interconnected systems — and APIs are the connective tissue. Whether you need to build an API that powers your mobile and web platform, or integrate your systems with third-party platforms your business depends on, Elite App Design delivers robust, documented, and secure API solutions.

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What You Get

Connect all your business systems eliminating manual data entry
Scalable API architecture that handles growth in traffic
Fully documented APIs your developers can actually use
Secure by design with OAuth, rate limiting, and input validation built in

Everything Included in
API Development & Integration

RESTful API Development

Clean, well-documented REST APIs following OpenAPI/Swagger specification — designed for discoverability, versioning, and long-term maintainability.

GraphQL API Development

Flexible GraphQL APIs for complex data requirements enabling frontend teams to query exactly the data they need without over-fetching.

Third-Party API Integration

Integration with payment gateways, CRMs, ERPs, shipping carriers, communication platforms, and any other service with an API.

Webhook Development

Event-driven architectures using webhooks for real-time data synchronization between systems — with retry logic, signature validation, and monitoring.

API Security

OAuth 2.0, JWT authentication, API key management, rate limiting, and input validation — securing against the OWASP API Security Top 10.

API Documentation

Comprehensive documentation using Swagger UI or Postman making your API accessible to internal teams and external developers.

Our API Development & Integration Process

01

API Design

Endpoint structure, data models, and authentication strategy defined.

02

Development

API built with comprehensive error handling and logging.

03

Testing

Automated test suite covering all endpoints and edge cases.

04

Documentation

Full OpenAPI documentation generated and published.

05

Integration Support

We support your team through the integration process.

Working with Elite App Design was the best technical decision we made. They delivered on time, communicated clearly throughout, and the final product exceeded our expectations. Our users noticed the difference immediately.

JR
James Rodriguez
CTO, NexaTech Solutions
★★★★★

API Development & Integration FAQ

REST or GraphQL? +
REST is simpler and easier to cache. GraphQL is better for complex nested data or multiple client types with different data needs. We recommend the right choice for your situation.
Can you integrate with a system without a public API? +
Sometimes. If the system has a web interface we can build a scraping layer. If it has an accessible database, direct integration is possible. We assess feasibility in discovery.
How do you handle API versioning? +
We implement URL-based versioning (v1, v2) as standard practice — enabling you to evolve your API without breaking existing integrations.
What if a third-party API we depend on changes? +
We monitor deprecation notices and include integration maintenance in our support retainers. We build adapters that insulate your core system from third-party changes where possible.

Let’s Talk About
Your API Development & Integration Project

Free 30-minute consultation. We review your requirements, answer your questions, and give you a realistic path forward.