Nexus Gateway is an intelligent middleware designed to sit between your users and LLMs (OpenAI, Anthropic). It solves the three biggest problems in AI Engineering: Cost, Latency, and Vendor Lock-in.

Key Features:
⚡ Semantic Caching: Uses Vector Search to cache similar queries, reducing API bills by 90% and latency by 95%.
🔌 Universal Router: Switch between GPT-4 and Claude 3 instantly without changing your code.
🛡️ Rate Limiting: Built-in Token Bucket protection.
💰 Monetization: Automated Stripe billing integration.

Fully open-source and comes with an official Python SDK (pip install nexus-gateway).