API Development
Secure, well-documented REST and GraphQL APIs that connect your systems, partners, and third-party integrations reliably at scale.
Overview
APIs are the connective tissue of modern software — the difference between systems that work together and systems that require manual data entry between them. Our API Development service builds REST and GraphQL APIs that are secure, well-documented, and designed to hold up under real production traffic, not just pass a demo.
We work with startups building their first public API for partners, SMEs connecting internal systems that have grown up in silos, and enterprises exposing legacy functionality to modern front-ends and mobile apps without a full system rewrite. In every case, we start with the contract — defining resources, authentication, and versioning strategy before writing implementation code — so the people consuming your API (whether that's your own front-end team or an external partner) can start integrating against a stable interface early.
Security and observability aren't add-ons in our process. Every API ships with OAuth2 or signed API key authentication, input validation, rate limiting, and structured logging, because the APIs that fail in production are almost always the ones where these were treated as "phase two." We've shipped over 150 production APIs maintaining a 99.95% uptime SLA, and our specification-first approach means integration partners consistently report faster time-to-integration than with hand-rolled documentation.
Whether you need a single internal API connecting two systems or a full public developer platform with a partner ecosystem, we design for the API you'll need in two years, not just the one you need today — with a clear versioning strategy so growth doesn't mean breaking every existing integration.
Why clients choose api development
Built for real-world scale
Rate limiting, caching, and horizontal scaling are designed in from the start, not patched on after your first traffic spike.
Security by default
OAuth2/OIDC authentication, input validation, and audit logging are standard on every API we build.
Documentation your partners will actually use
OpenAPI/Swagger specs and interactive docs ship alongside every endpoint, cutting partner integration time significantly.
Versioning without breakage
Clear versioning strategy means you can evolve your API without breaking existing integrations overnight.
Webhook & event-driven support
Real-time event delivery for partners and internal systems that need to react instantly, not poll for changes.
Observability built in
Structured logging, tracing, and alerting mean issues are caught before your partners notice them.
Tools we use for this service
How we deliver
- 1
API Strategy & Contract Design
We define resource models, endpoint contracts, and authentication strategy collaboratively with your team and any key integration partners.
- 2
Specification-First Development
OpenAPI or GraphQL schemas are written and reviewed before implementation begins, so consumers can start building against a stable contract early.
- 3
Implementation & Testing
Endpoints are built with automated contract tests, load tests, and security scans as part of the CI pipeline, not an afterthought.
- 4
Documentation & Sandbox
Interactive documentation and a sandbox environment are delivered so internal teams and partners can self-serve integration.
- 5
Rollout & Monitoring
APIs are released behind versioned routes with usage monitoring and alerting configured from day one.
- 6
Ongoing Evolution
We support iterative versioning and deprecation planning as your API surface grows.
What you'll receive
- Production-ready REST and/or GraphQL API
- OpenAPI/Swagger specification and interactive documentation
- Authentication and authorization layer (OAuth2/OIDC/API keys)
- Rate limiting, caching, and monitoring configuration
- Webhook infrastructure for real-time event delivery
- Sandbox/staging environment for partner testing
- API versioning and deprecation strategy document
Common questions
REST is usually the right default for public APIs and simple resource-based integrations. GraphQL tends to pay off when front-end teams need flexible queries across deeply nested data, or when you're serving multiple client types with very different data needs. We'll recommend based on your actual consumers, not trend.
Every API we build includes OAuth2/OIDC or signed API key authentication, strict input validation, rate limiting, and audit logging by default. For regulated industries, we also implement field-level encryption and detailed access logging to support compliance audits.
Yes. We regularly build and maintain integrations with major SaaS platforms, payment processors, logistics carriers, and industry-specific systems, handling authentication, retries, and error handling on your behalf.
We implement explicit API versioning from day one (URL or header-based, depending on your consumers) with a documented deprecation policy, so breaking changes are planned and communicated rather than surprising integration partners.
Yes, every API ships with an OpenAPI or GraphQL schema, interactive documentation (via tools like Swagger UI or GraphiQL), and a sandbox environment so partners can test without touching production data.
We design for horizontal scaling from the start — stateless services behind a load balancer, caching layers with Redis, and rate limiting to protect backend systems — and load-test against realistic traffic projections before launch.
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