Custom REST & GraphQL APIs
APIs designed around your business logic — clean endpoints, validation, versioning, and developer-friendly documentation.
CUSTOM API INTEGRATION & DEVELOPMENT · MALIK UBAID
Custom API Integration & Development Services
Connect your software, automate workflows, and unlock new features with custom API development and third-party API integration — built securely, documented clearly, and tested thoroughly.
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Website Development
Custom Software
Mobile Apps
Custom API integration and development services for businesses that need reliable connections between websites, mobile apps, CRMs, ERPs, payment gateways, and third-party platforms. Malik Ubaid designs, builds, and integrates secure REST and GraphQL APIs with proper authentication, webhooks, documentation, and testing for clients in the UAE, Saudi Arabia, Pakistan, and worldwide.
THE PROBLEM
Sound Familiar?
Many entrepreneurs and small business owners face these challenges before finding the right custom API integration and development partner.
- Your tools don't talk to each other — staff copy data manually between systems
- You need a custom API but don't have a developer who understands auth, webhooks, and scalability
- A third-party integration broke after an API update and nobody knows how to fix it
WHY IT WORKS
Benefits of Professional Custom API Integration & Development
Invest in custom API integration and development that delivers measurable business results — not just activity.
Third-Party Integrations
Connect Stripe, PayPal, Shopify, WooCommerce, CRMs, shipping, SMS, email, and any platform with a documented API.
Webhooks & Automation
Real-time event handling so payments, orders, leads, and inventory sync automatically across systems.
Secure & Scalable
OAuth, API keys, rate limiting, error handling, and logging built in from day one.
DEVELOPMENT SERVICES
API Integration & Development Services
Full-stack API development and integration for web apps, mobile apps, SaaS products, and enterprise systems.
Custom REST API Development
Build robust REST APIs tailored to your product — CRUD operations, business rules, and clean JSON responses.
- RESTful endpoint design
- Request validation & errors
- API versioning strategy
- OpenAPI / Swagger docs
GraphQL API Development
Flexible GraphQL APIs when clients need precise data fetching and reduced over-fetching.
- Schema design
- Queries & mutations
- Resolver implementation
- Performance optimization
Third-Party API Integration
Integrate external services — payment gateways, shipping, CRM, marketing tools, and cloud platforms.
- Stripe, PayPal & payment APIs
- Shopify, WooCommerce & ERP APIs
- Email, SMS & notification APIs
- Maps, AI & cloud service APIs
Webhook Development
Inbound and outbound webhooks for real-time sync — payment events, order updates, lead notifications.
- Webhook endpoint setup
- Signature verification
- Retry & queue handling
- Event logging & monitoring
CRM & ERP Integration
Sync leads, customers, orders, and inventory between your website, CRM, and back-office systems.
- Lead & customer sync
- Order & invoice automation
- Inventory updates
- Custom middleware services
API Maintenance & Support
Ongoing monitoring, bug fixes, API version upgrades, and documentation updates.
- API health monitoring
- Breaking change updates
- Performance tuning
- Security patches
WHAT'S INCLUDED
Everything You Need for Success
My custom API integration and development packages are comprehensive — covering strategy, execution, and reporting so you always know what's working.
- Custom REST / GraphQL API development
- Third-party API integration (payments, CRM, eCommerce)
- Webhook setup & event-driven automation
- Authentication (OAuth, JWT, API keys)
- API documentation & testing
- Error handling, logging & monitoring
- Deployment support & ongoing maintenance
HOW IT WORKS
Simple 4-Step Process
1
Free Consultation
We discuss your goals, challenges, and the best approach for your business.
2
Custom Strategy
I create a tailored plan with clear deliverables, timeline, and pricing.
3
Execution
I implement the strategy with regular updates and transparent communication.
4
Results & Growth
Track measurable results, optimize performance, and scale what works.
FAQ
Frequently Asked Questions
Common questions about my custom API integration and development — answered honestly.
Custom API integration and development means building new APIs for your application or connecting your software with third-party services through their APIs — enabling automated data exchange, payments, notifications, and workflow automation.
I build APIs with Node.js, PHP/Laravel, Python, and ASP.NET — choosing the stack that fits your existing application and hosting environment.
Yes. I add API layers and third-party integrations to existing websites, SaaS products, ERP systems, and mobile apps without requiring a complete rewrite when the architecture allows.
Yes. Every custom API includes clear documentation — endpoints, parameters, authentication, example requests/responses, and error codes — so your team or partners can integrate easily.
Yes. I troubleshoot failing integrations, update deprecated API versions, fix webhook issues, and improve reliability and security.
I work with clients in the UAE, Saudi Arabia, Pakistan, and internationally — remotely with clear communication and documented delivery.
Ready to Get Started with Custom API Integration & Development?
Book a free consultation with Malik Ubaid — freelancer and entrepreneur with 10+ years of experience and 400+ projects delivered worldwide.