API Development That Connects Everything
APIs are the backbone of modern software. InterCode designs and builds robust RESTful and GraphQL APIs that connect your systems, enable partner integrations, and power your digital ecosystem with reliability and speed.
APIs Engineered for Scale and Reliability
Every modern application depends on APIs to communicate, whether it is a mobile app talking to a backend, a partner system exchanging data, or microservices coordinating business logic. InterCode builds APIs that are fast, secure, well-documented, and a pleasure for developers to integrate with.
Our API development covers the full lifecycle: from schema design and documentation through implementation, testing, deployment, and monitoring. We follow OpenAPI specifications, implement proper versioning, and build developer portals that make integration effortless for internal teams and external partners alike.
Whether you need to expose your platform's capabilities to the world, integrate with dozens of third-party services, or build an API gateway to unify your microservices architecture, InterCode delivers APIs that perform under pressure and evolve gracefully over time.
What We Deliver
Complete API development services from design through monitoring.
RESTful & GraphQL API Design
Well-structured APIs following industry standards with clear endpoints and predictable behavior.
- OpenAPI/Swagger specifications
- GraphQL schema-first design
API Gateway & Security
Centralized gateway with authentication, rate limiting, and threat protection for all your APIs.
- OAuth 2.0 and JWT implementation
- DDoS and abuse prevention
Third-Party Integrations
Connect with payment processors, CRMs, ERPs, marketing tools, and any system with an API.
- Webhook management
- Retry and error handling logic
Developer Portals
Interactive API documentation with code examples, sandbox environments, and API key management.
- Auto-generated from OpenAPI specs
- Try-it-now request builder
Rate Limiting & Monitoring
Usage-based throttling, analytics dashboards, and real-time alerting for API health.
- Per-client rate policies
- Latency and error tracking
API Development Process
API Strategy & Design
We define the API architecture, authentication model, and schema based on your integration requirements.
- Endpoint inventory
- Authentication strategy
Schema & Documentation
OpenAPI specs and GraphQL schemas are written before code, serving as the contract for development.
- Schema review with stakeholders
- Mock server for early testing
Implementation
APIs are built with comprehensive validation, error handling, and automated test coverage.
- Input validation and sanitization
- Consistent error response format
Gateway & Security Setup
API gateway configuration with authentication, rate limiting, and caching.
- Kong or AWS API Gateway
- SSL/TLS and CORS configuration
Testing & Performance
Load testing, contract testing, and integration testing ensure APIs perform under real conditions.
- Load testing to 10x expected traffic
- Contract testing with consumers
Monitoring & Iteration
Production monitoring with alerting, usage analytics, and versioned updates.
- Real-time health dashboards
- Deprecation and versioning strategy
API Strategy & Design
We define the API architecture, authentication model, and schema based on your integration requirements.
- Endpoint inventory
- Authentication strategy
Schema & Documentation
OpenAPI specs and GraphQL schemas are written before code, serving as the contract for development.
- Schema review with stakeholders
- Mock server for early testing
Implementation
APIs are built with comprehensive validation, error handling, and automated test coverage.
- Input validation and sanitization
- Consistent error response format
Gateway & Security Setup
API gateway configuration with authentication, rate limiting, and caching.
- Kong or AWS API Gateway
- SSL/TLS and CORS configuration
Testing & Performance
Load testing, contract testing, and integration testing ensure APIs perform under real conditions.
- Load testing to 10x expected traffic
- Contract testing with consumers
Monitoring & Iteration
Production monitoring with alerting, usage analytics, and versioned updates.
- Real-time health dashboards
- Deprecation and versioning strategy
API Technology Stack
High-performance technologies for building APIs that scale.
We select the right language and framework based on your performance requirements and team expertise, backed by industry-standard gateway and documentation tooling that makes your APIs a product in their own right.
Client Results
Built a public API and developer portal that enabled 200+ partner integrations within the first year of launch.
Redesigned API architecture with caching and query optimization to achieve sub-50ms response times at peak traffic.
Delivered a mission-critical payment API processing 500K+ daily requests with near-perfect availability.
Why InterCode for API Development
Documentation-First Approach
We write API specs before code, ensuring clear contracts and reducing integration friction for every consumer.
Performance Obsessed
Every API is load-tested, optimized, and monitored to ensure fast response times even under heavy traffic.
Security by Default
Authentication, authorization, input validation, and rate limiting are built into every API from the start.
Versioning & Evolution
We implement API versioning strategies that let you evolve without breaking existing integrations.
Frequently Asked Questions
It depends on your use case. REST is ideal for simple CRUD operations and when you want broad compatibility. GraphQL excels when clients need flexible queries and you want to reduce over-fetching. Many of our clients use both: REST for external partners and GraphQL for internal frontends.
We implement multiple security layers: OAuth 2.0 or JWT for authentication, input validation and sanitization, rate limiting per client, request logging for audit trails, and automated vulnerability scanning. API gateways provide an additional defense layer with DDoS protection and IP filtering.
Yes. We build interactive developer portals with auto-generated documentation from OpenAPI specs, live sandbox environments for testing, code examples in multiple languages, API key management, and usage analytics. This makes your API easy to integrate with and reduces support burden.
We typically use URL path versioning (v1, v2) for REST APIs and schema evolution for GraphQL. Deprecated endpoints return warnings before removal, and we maintain backward compatibility for a defined period. Our versioning strategy is documented and communicated to all consumers.
Our API architectures routinely handle thousands of requests per second with sub-100ms response times. We design for horizontal scaling from the start, use caching aggressively, and load test to 10x expected traffic to ensure your API performs under any conditions.
Ready to Build APIs That Scale?
Tell us about your integration needs and we will design an API architecture that connects your entire ecosystem.
Contact Us