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API Development Services

We handle backend and API development services end to end. REST, GraphQL, and third-party integrations all go through the same tools for REST API development we would recommend to any team building their own. API development for mobile apps gets the same treatment as a web dashboard.

How We Build APIs

Choose the right pattern. REST for simple resources and caching, GraphQL for complex queries and mobile clients. We know the tradeoffs.

Authentication, authorization, rate limiting, input validation. Security isn't an afterthought, it's built in from the start.

Clear API docs are part of the deliverable. Real examples, error codes, rate limits. Developers should understand your API in minutes.

Design for growth. Pagination, filtering, async processing. Your API should handle 10x the current load without rewriting.

Clear, actionable errors. Proper HTTP status codes, meaningful messages. Debugging should be straightforward.

Comprehensive test coverage. Endpoints that don't break on deploy. Monitoring and alerting so you know when something's wrong.

APIs for AI Chatbots

Chatbot API development is API work like any other: authentication, rate limits, and a contract that does not change without notice. We build the endpoints that sit behind a chatbot, whether it calls the ChatGPT API, Claude, Gemini, or another LLM entirely. AI development platforms with API integration are only as reliable as the API underneath them, and that is the part we build.

What People Say About Us

“sharp, reliable, and gets things done”

I have worked with Yuri, founder of Stackski, on several projects ranging from demanding LAMP applications to machine learning face recognition models. Yuri is sharp, reliable, and gets things done. He consistently delivers high quality work, even under tight deadlines and pressure. I would strongly recommend him.

Theo Sapoutzis

Founder, StartupAdvances

Verified Partner

“incredible programmer with a deep, methodical approach”

Yuriy is an incredible programmer with a deep, methodical approach to solving complex problems. He is an excellent communicator, highly dependable, and consistently produces thoughtful, high-quality work. I would recommend him without hesitation for any development project.

Adrian D'Atri-Guiran

CTO, BID13

Verified Partner

£70 /hr Flat rate GBP Pricing

Location	We are based in Toronto GTA, Ontario, Canada Working remotely with clients globally We are based in Toronto GTA, Ontario, Canada. Working remotely with clients globally.
Quote	Quotes are free
Billing cycle	Hourly, or fixed price, or per milestone
NDA	Available at any stage
Scope changes	Requoted and approved before implementation
Code ownership	Ownership transfers as each invoice is paid No licensing, no royalties Ownership transfers as each invoice is paid. No licensing, no royalties.
Existing codebase	We audit first and integrate cleanly
Code support	30-day bug coverage on the code tied to each payment

Let's build your API.

Whether you need a new API or integrations with existing services, we'll create clean, documented, and performant solutions.

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