API Development & Integration
API development and integration is the connective layer between your systems and everything they need to talk to — payment gateways, third-party services, and other internal systems — built to stay reliable under real production traffic.
Overview
Most software today is not a single system in isolation — it depends on payment processors, messaging platforms, AI providers, and other internal systems, all connected through APIs. The quality of that connective layer determines whether the whole system is reliable or fragile.
We build both sides of this: REST and GraphQL APIs for systems we build ourselves, and integrations into third-party APIs — payment gateways, WhatsApp, AI providers, ERPs — with the error handling and monitoring that keeps a dependency on someone else's system from becoming your own outage.
REST and GraphQL solve different problems: REST is the simpler, more cacheable default for most APIs; GraphQL earns its added complexity when clients (especially mobile apps on variable connections) need to request exactly the fields they need in one round trip. Choosing between them is a real architecture decision made against your actual consumers, not a default.
Resilience patterns — retries with backoff, circuit breakers that stop hammering a failing dependency, and dead-letter queues for messages that can’t be processed yet — are what keep a third-party outage from cascading into your own system going down. These get designed in during the integration build, not added reactively after the first real outage.
Security at the API layer means authentication on every endpoint, rate limiting to prevent abuse, and secrets (API keys, tokens) stored in a proper secrets manager rather than in code or environment files committed to a repository — basic discipline that is nonetheless the most common source of real API security incidents when skipped.
Integration work is the right service when you need to connect to specific existing systems — payment gateways, ERPs, messaging platforms; if what you actually need is a new application built from scratch with its own API, that’s Custom Web Development or SaaS Development, with API design as one part of a larger build, not the entire scope.
Best Fit For
Businesses whose systems need to exchange data reliably — internal tools, third-party platforms, or partner integrations.
Engineering
Real Engineering Behind Every API Development & Integration Engagement
API work here starts with a versioning strategy and a typed contract decided before the first endpoint is built, so consumers of the API, internal or third-party, don't break the moment the system needs to evolve.
Business Problems We Solve
Fragile Third-Party Integrations
An integration built without real error handling breaks the moment the third-party API changes or has an outage.
No Versioning Strategy
An API with no versioning plan breaks existing consumers the moment it needs to change.
Inconsistent Data Contracts
APIs without a clear, typed contract lead to silent mismatches between systems that surface as production bugs.
Poor Error Visibility
A failed integration with no real logging means the first sign of a problem is a customer complaint.
Features
REST and GraphQL API Design
APIs designed around real consumer needs, with clear versioning from the first release.
Resilient Third-Party Integration
Payment gateways, WhatsApp, AI providers, and ERPs integrated with real error handling and fallback logic.
Typed, Documented Contracts
Clear, typed API contracts that catch mismatches at build time, not in production.
Monitoring and Alerting
Real visibility into integration health, so a failure is caught before a customer notices.
Benefits
Integrations That Actually Hold Up
Built with the error handling to survive a third-party outage without becoming your outage.
Safe to Evolve
Versioned APIs mean you can change and grow without breaking existing consumers.
Faster Debugging
Real monitoring means problems are caught and diagnosed quickly, not discovered by a customer.
Connects Your Real Stack
Whatever systems your business already runs on, integrated properly rather than worked around.
Our Process
The same disciplined process behind every api development & integration engagement, from first conversation to production.
- 01
Discovery
Understanding your goals, users, and constraints before any code is written.
Technical Brief
- 02
Strategy
Defining the technical approach, architecture, and roadmap for what gets built.
Architecture Plan
- 03
Development
Building in focused iterations, with regular check-ins and working software at every stage.
Working Software
- 04
Launch & Growth
Shipping to production, then monitoring, refining, and scaling based on real usage.
Production Release
Technologies We Use
- Node.js
- GraphQL
- REST
- Stripe
- WhatsApp Business API
- PostgreSQL
Industries Served
Where api development & integration most commonly makes an impact.
- Finance
- Ecommerce
- Healthcare
- Logistics
System Integration
Enterprise Integration Suite
Typed, versioned, monitored APIs that connect your real systems reliably — not a fragile point-to-point script that breaks the next time a vendor changes their response format.
What’s Included
- REST/GraphQL API Design
- Third-Party Integration
- Typed Contracts
- API Versioning
- Monitoring & Alerting
- Rate Limiting & Auth
- Error Handling & Retries
- API Documentation Portal
Every Engagement Includes
- Integration Discovery Workshop
- Dedicated Integration Engineer
- System & Data Mapping
- Secure API Gateway
- Cloud Hosting & SSL
- Production & Staging Environments
- Uptime & Latency Monitoring
- Load & Failure Testing
- Developer Documentation
- Team Training on Monitoring Tools
- 30 Days Post-Launch Support
Starting From
PKR 250,000
Approx. USD $900 (reference only)
Final investment depends on your project scope, features, integrations, and business requirements discussed during the discovery session.
Every price is confirmed in writing before work begins — no hidden charges, ever.
Optional Add-Ons
- + Webhook Event Bus
- + GraphQL Federation Layer
- + Legacy SOAP Bridging
- + Partner API Portal
What Happens After Launch
Day 30
Launch
- APIs live in production across connected systems
- Team trained on monitoring dashboards
- Baseline latency & error rate captured
Day 60
Harden
- First versioned update shipped without breaking consumers
- Alert thresholds tuned from real traffic
- Slowest endpoints optimized
Day 90
Extend
- Roadmap for the next integration
- Third-party dependency risk reviewed
- Long-term API governance plan
Ownership
What You Receive
Every api development & integration engagement ends with the same ownership terms — nothing withheld, nothing licensed back to us.
Full Source Code
The complete codebase, with no proprietary lock-in — yours to keep, extend, or hand to another team.
Complete Documentation
Technical documentation covering architecture, setup, and key decisions, so the system doesn't depend on institutional memory.
Deployment & Handover
A working, deployed system handed over with credentials and access — not a zip file dropped at the finish line.
Post-Launch Training
A walkthrough for your team on how the system actually works, so day-to-day operation doesn't depend on us.
Frequently Asked Questions
What third-party APIs have you integrated with?
Payment gateways, messaging platforms like WhatsApp, AI providers, and ERP/CRM systems are common — the specific integration depends on what your business already runs on, scoped honestly per project.
What happens if a third-party API changes or goes down?
Integrations are built with real error handling and fallback logic, so a third-party outage degrades gracefully instead of breaking your whole system.
Do you build the API or just integrate with existing ones?
Both — we design and build new REST/GraphQL APIs for systems we build, and integrate with existing third-party APIs when that is what the project needs.
How do you handle API versioning?
A versioning strategy is decided at the start, not after the first breaking change is needed, so existing consumers are not broken by future updates.
Can you document the API for our own developers?
Yes — clear, typed API documentation is a standard part of the deliverable, not an afterthought.
How long does an API integration take, and what drives the cost?
The number of third-party systems and the quality of their documentation are the main factors — a well-documented, stable API integrates faster than one with sparse docs or known reliability issues.
What’s a common mistake teams make with API integrations?
Skipping real error handling because the integration works in testing. Third-party APIs fail in production eventually — the mistake is not planning for it upfront.
When is this NOT the right service to start with?
When there’s no existing system to build an API for or integrate with yet — if you’re building an application from scratch, API design is one part of that larger Custom Web Development or SaaS Development engagement, not a standalone starting point.
What should we have ready before an integration project starts?
Access to the third-party system’s documentation (or a contact who has it), and clarity on what should happen when that system is unavailable — a degraded mode, a queued retry, or a hard failure. That fallback behavior is a real business decision, not just an engineering detail.
What drives integration project complexity most?
The number of third-party systems and the quality of their documentation. A single, well-documented, stable API integrates quickly; several sparsely documented systems with inconsistent reliability add real discovery and testing time regardless of how simple each individual integration looks on paper.
How do API integrations typically change after launch?
Third-party providers deprecate endpoints and change rate limits over time, so ongoing monitoring and periodic updates are part of keeping an integration healthy — this is exactly what the Launch & Growth phase of our process tracks rather than treating the first successful request as the finish line.
Related Services
Cloud & DevOps
AWS, Google Cloud, and Azure infrastructure, CI/CD pipelines, and monitoring built for reliable deployments and real production scale.
Learn More about Cloud & DevOpsSaaS Development
End-to-end SaaS platforms, including multi-tenant architecture, billing, and the infrastructure to scale from first customer onward.
Learn More about SaaS DevelopmentEnterprise Software Development
Internal tools and enterprise systems built to integrate with existing infrastructure and meet real compliance requirements.
Learn More about Enterprise Software Development
Delivery
Support Doesn't End At Launch
Third-party APIs change their behavior, deprecate endpoints, and occasionally have outages outside anyone’s control. Every integration engagement includes the Launch & Growth phase of our process: monitoring integration health and adapting to upstream changes, not a handoff the moment the first request succeeds.
Ready to Talk About API Development & Integration?
Tell us which systems need to talk to each other, and we'll tell you what a reliable integration actually takes.