API Development

Financial Data API Platform

RESTful and GraphQL API platform providing real-time financial market data with comprehensive documentation and SDKs.

Node.js
GraphQL
REST API
Finance
Documentation
🖼️

Project Screenshot / Demo

The Challenge

Fintech startups needed reliable, fast access to financial market data but existing solutions were expensive and lacked flexibility.

The Solution

Developed a comprehensive API platform with both REST and GraphQL endpoints, providing real-time and historical market data with flexible pricing tiers.

Key Features

  • RESTful and GraphQL API endpoints
  • Real-time WebSocket data streams
  • Historical data with flexible time ranges
  • Rate limiting and API key management
  • Comprehensive interactive documentation
  • SDKs for JavaScript, Python, and Go
  • Webhook support for events

Tech Stack

Node.js
Express
GraphQL
PostgreSQL
Redis
JWT
Swagger/OpenAPI

Built with modern technologies to ensure scalability, performance, and maintainability.

The Results

Processed 1M+ API requests daily

Achieved 99.99% uptime

< 100ms average response time

Served 200+ B2B customers

Generated $100K MRR within 6 months

Interested in a similar solution?

Let's discuss how I can build a custom solution tailored to your specific needs.