API Development
APIs Done Right
Bad APIs create friction. Every inconsistent endpoint, missing error message, and undocumented edge case slows down everyone who integrates with your system.
We build APIs that are consistent, well-documented, and designed for the developers who will use them. Django REST Framework, FastAPI, or Node.js—we choose the right tool and apply the same standards regardless of stack.
Our APIs have powered mobile apps, third-party integrations, and internal tools. They've handled thousands of requests per second and passed enterprise security audits.
The code was organized in such a neat way, written clearly, and so optimized from a database and rendering perspective—it was very easy for us to follow.
APIs We've Built
From mobile backends to enterprise integrations
Phyn API
Real-time IoT data API handling sensor data from millions of devices. RESTful design with WebSocket streaming.
RealKey
FinTech API for mortgage document processing. Enterprise security, audit logging, third-party integrations.
E-Commerce APIs
Product catalog, inventory, and order management APIs handling high-traffic loads.
APIs You Can Actually Use
Documentation isn't optional.
Every API we build comes with OpenAPI specs, interactive documentation, and example requests. Your team can explore endpoints, test responses, and understand the system without reading code.
We use tools like Swagger UI and Redoc to generate documentation that stays in sync with the actual API. No more outdated docs.
Built to Scale
Performance is designed in, not patched on.
Database query optimization, caching strategies, pagination that works—we think about performance from day one. We've built APIs handling thousands of requests per second without breaking a sweat.
Load testing, profiling, and monitoring are part of our process. We find bottlenecks before your users do.
ClearSummit developed an effective platform that continues to attract and satisfy users. They had a thorough understanding of our needs and were able to provide top-notch solutions.
How We Work
API Design First
Before writing code, we design the API contract. Resource structure, endpoint naming, authentication strategy, error handling patterns. We get agreement on the interface before implementing it.
Implementation
Django REST Framework, FastAPI, or Node.js—we choose the right tool for your requirements. Consistent patterns across all endpoints. Comprehensive test coverage.
Documentation & Testing
OpenAPI specs, interactive docs, integration tests. We make sure your team can use the API without asking us questions about every endpoint.
Deploy & Monitor
CI/CD pipelines, production deployment, monitoring and alerting. We track response times, error rates, and usage patterns. You know how your API is performing.
Our Stack
API Technologies
Proven tools for backend development.
Is This Right for You?
We're a good fit if: You need an API that handles real traffic. You want documentation that actually helps developers integrate. You need a team that thinks about security and performance from day one.
We're not a good fit if: You need a simple CRUD backend (try a BaaS). You're looking for the cheapest option. You don't care about developer experience.
More From Our Portfolio
Let's Build Your API
Tell us about your backend needs. We'll give you an honest assessment of the right approach and what it takes to build an API that scales.