API Development & Integration - OpenStellar Tech | Digital Transformation & IT Staffing Solutions

Connections That Matter. APIs That Empower.

We design and develop secure, scalable APIs that connect systems, enhance performance, and accelerate digital innovation.

Custom API Design & Development

APIs built for scale, security, and speed.

We architect and develop RESTful, GraphQL, and gRPC APIs tailored to your product or platform, ensuring performance and maintainability.

API Security, Rate Limiting, and Auth

Security-first development for APIs.

Our solutions include robust access control, data validation, and secure transport layers:

Third-Party API Integrations

Seamlessly connect with trusted APIs.

We build integrations with leading SaaS and cloud services to automate tasks, sync data, or enable payments:

API Gateway, Versioning & Documentation

Developer-ready APIs with clear governance.

We deliver production-grade APIs with version control, monitoring, and developer portal documentation.

Skills & Tools

API Protocols:

REST, GraphQL, gRPC

Languages/Frameworks:

FastAPI, NestJS, Node.js, Express

Tools:

Postman, Swagger (OpenAPI), Insomnia

API Gateways:

AWS API Gateway, Kong, Apigee

Security & Auth:

OAuth2, JWT, Auth0, Firebase Auth

3rd-Party APIs:

Stripe, Twilio, Google APIs, OpenAI, Supabase, Slack