OpenRouter
Unified AI model aggregation platform providing a single API gateway to OpenAI, Claude, and Gemini with user management, API key management, and usage analytics.
Timeline
Ongoing
Role
Full Stack
Team
Solo
Status
In-progressTechnology Stack
Key Challenges
- Multi-Provider Integration
- API Gateway Architecture
- Credit-Based Billing
- Token Counting
- Type-Safe API
- User Authentication
- Database Design
- Monorepo Management
Key Learnings
- Turborepo
- Elysia.js Framework
- LLM Provider SDKs
- Prisma ORM
- JWT Authentication
- Eden Treaty
- API Key Management
- Usage Analytics
OpenRouter: Unified AI Model Aggregation Platform
Overview
OpenRouter is a unified AI model aggregation platform that provides a single API gateway to multiple Large Language Model (LLM) providers including OpenAI, Claude, and Gemini. Built with modern TypeScript technologies and designed for scalability, it offers a streamlined way to access 200+ AI models through one integration.
The Problem I Solved
Developers face several challenges when working with multiple AI models:
- Managing multiple API keys and SDKs for different providers
- Inconsistent API formats across providers
- Complex billing and usage tracking
- No unified dashboard for monitoring
OpenRouter solves this by providing one API, one dashboard, and one billing system for all AI models.
Key Features
🌐 Unified API Gateway
- Single Endpoint: Access GPT-4, Claude, Gemini, and more through one API
- OpenAI-Compatible: Drop-in replacement — just change the base URL
- Smart Routing: Automatic failover and intelligent model routing
👥 User Management
- Authentication: Secure JWT-based user authentication
- API Keys: Generate and manage multiple API keys per user
- Credit System: Track usage and manage credits for API consumption
📊 Usage Analytics
- Dashboard: Intuitive React-based dashboard for monitoring
- Token Tracking: Track conversations, token counts, and credit consumption
- Cost Optimization: Monitor spending across all API keys
Technical Highlights
Monorepo Architecture
Built with Turborepo containing:
api-backend: LLM aggregation service for routing requestsmain-backend: Core business logic with Elysia.jsfrontend-dashboard: React 19 web interface- Shared packages for database and configurations
Tech Stack
- Runtime: Bun - Fast all-in-one JavaScript runtime
- Backend: Elysia.js - Ergonomic web framework for Bun
- Frontend: React 19 with TanStack Query
- Database: PostgreSQL with Prisma ORM
- Type Safety: Eden Treaty for end-to-end type safety
LLM Integration
Implemented provider adapters for:
- OpenAI (GPT-4, GPT-3.5-turbo)
- Anthropic (Claude 3 Opus, Sonnet)
- Google (Gemini Pro)
Use Cases
Perfect for:
- Quick Team Syncs: Share a link, discuss, and done
- Sensitive Discussions: Share credentials or keys securely
- Casual Chats: Spontaneous conversations without commitment
- Privacy Enthusiasts: Communication without the tracking