FinTech System is a leading provider of rest api developers in Kolkata, helping local traders and trading businesses automate and scale with secure, custom rest api development. Transparent pricing: Rs 6,000 to Rs 5,00,000.
What Is REST API Development?
Design and build secure, scalable REST APIs — the backbone that lets your apps, partners and integrations talk reliably.
For traders and businesses in Kolkata, this means faster execution, fewer errors and a professional edge over generic tools.
Why Kolkata for REST API Development?
Kolkata, eastern India's financial gateway, has a large and growing trader base that increasingly relies on automated, technology-driven trading.
Choosing an experienced team means your system is built right the first time: documented, tested and ready to scale as your needs grow.
What Our REST API Developers in Kolkata Includes
Our rest api development covers everything you need, end to end:
- Documented: OpenAPI/Swagger docs your partners will love.
- Secure: Token auth, scopes, rate-limits and validation.
- Versioned: Backward-compatible versioning and changelogs.
- Scalable: Built for high throughput and low latency.
- Broker & Data Integration: Live feeds and order execution via Zerodha, Angel One, Upstox, Dhan, Binance and more.
- Security & Risk Controls: Encrypted connections, role-based access, stop-loss, limits and a full audit trail.
- Maintenance & Support: Ongoing updates, monitoring and technical support so your system keeps running.
We keep pricing honest and flexible: from Rs 6,000 for a focused build to Rs 5,00,000 for a complete platform. You only pay for what your rest api development project actually needs.
How We Work
We start with discovery to understand your goals, then design the architecture, build in agile iterations with regular demos, test thoroughly, deploy to cloud or VPS, and support you long term.
Key Features You Get
- Speed & Low Latency: Fast execution so you never miss an opportunity.
- Customizable Rules: Define your own entry, exit and order-size logic.
- Live Monitoring: Real-time trades, charts and profit/loss visibility.
- Multi-Asset Support: Stocks, options, futures, forex and crypto from one system.
- Alerts & Logs: Instant notifications and detailed logs if anything needs attention.
- Easy to Use: A clean, intuitive interface anyone on your team can operate.
Frequently Asked Questions
How much does rest api development cost in Kolkata?
Pricing depends on features and complexity. A basic build starts from around Rs 6,000 to Rs 1,50,000, while full enterprise-grade systems go up to Rs 5,00,000. You get a transparent, itemised quote within 24 hours.
How long does rest api development take?
A focused build can be ready in 1–2 weeks. A full-featured system with dashboard, apps and API integrations typically takes 4–6 weeks including testing and deployment.
Is this legal and compliant in India?
Yes. Algo trading and trading software are legal in India and regulated by SEBI; traders must follow their broker's guidelines. FinTech System is strictly a technology provider — we build software, not brokerage or financial services, and we do not guarantee profits.
Do you work with clients based in Kolkata?
Absolutely. We serve clients in Kolkata and across India (and abroad) remotely, with clear communication, live demos and full documentation throughout the project.
Which brokers and exchanges do you integrate?
We integrate major broker and exchange APIs including Zerodha, Angel One, Upstox, Dhan, Fyers, Interactive Brokers and Binance, for both live market data and order execution.
Do you provide support after delivery?
Yes. We offer ongoing maintenance, updates, monitoring and technical support so your system keeps running smoothly as markets and requirements evolve.