API Marketplace

A platform that connects API providers and consumers — publish, discover, subscribe, and monetize APIs with built-in billing and gateway.

A full-stack platform where API providers can publish, price, and monetize their APIs while consumers discover, subscribe, and consume them through a unified marketplace.
Built a rate-limited API gateway that forwards consumer requests to provider endpoints with usage tracking, quota enforcement, and real-time analytics.
Implemented role-based access control (Provider, Consumer, Admin) with dedicated dashboards, Google OAuth via Firebase, and JWT-based session management.
Integrated Razorpay for subscription billing, automated invoice generation, and payment retry handling using BullMQ background job queues.
Added real-time notifications via Socket.IO, audit logging for compliance tracking, and an admin panel with platform-wide analytics and user management.