What We Build
APIs are the backbone of web and mobile products. We design and build REST and GraphQL APIs with clear documentation, versioning and security for clients in the USA, Canada and Bengaluru.
Our APIs power web apps, mobile apps and third-party integrations—with authentication, rate limiting and error handling built in. We use Node.js, Python or TypeScript depending on your stack.
REST & GraphQL
Choose the right API style for your product and consumers.
Docs & Versioning
OpenAPI specs, versioning and developer-friendly docs.
Why Choose Hendoi for API Development
- 17+ years building APIs for USA, Canada and Bengaluru product teams.
- 2REST and GraphQL—documented, versioned and secure.
- 3Authentication, rate limiting and error handling built in.
- 4Clear communication and on-time delivery.
Tech Stack & Delivery
We use Node.js, Python or TypeScript. PostgreSQL, MongoDB or your preferred database. OpenAPI docs, versioning and deployment to your cloud. Integration with your frontend and third-party services.
Share your use cases for a free API design consultation and quote.
Tech Stack














Frequently asked questions
API development is designing and building interfaces that let apps talk to your backend. We build REST and GraphQL APIs for USA, Canada and Bengaluru with docs, versioning and security.
REST is simpler and widely used. GraphQL is better for flexible queries and reducing over-fetching. We recommend based on your product needs.
Simple APIs: 2–4 weeks. Complex APIs: 6–12 weeks. We provide a timeline in our free consultation and quote.
Ready to Build Your API?
Get a free consultation and quote. REST and GraphQL APIs for USA, Canada and Bengaluru.
Also explore our other services including backend development, SDK and web app development.