Why I stopped calling LLM APIs directly and built an Infrastructure Protocol

Last month, my OpenAI bill hit $520. When I looked at the logs, 30% of that was people asking the same "getting started" questions over and over. I was paying for the same tokens twice, and my users were waiting 2.5 seconds for a response that I already had in my database. That was my "Aha!" moment.

1. The $500 Wake-up Call: Why raw API calling is a financial liability.
2. The "Infrastructure Maturity" Shift: Moving from wrappers to gateways.
3. The 5ms Victory: How I used Go and Redis to make LLM responses feel like a local file read. 4.** Sovereign Privacy:** Why "Sovereign Shield" redaction is a must for any enterprise app.
4. Universal SDKs: Announcing the official launches of pip install nexus-gateway and npm i nexus-gateway-js.
5. Conclusion: Why "Tokens as COGS" is the future of AI engineering.

I replaced my standard OpenAI client with the Nexus SDK. The first time I saw a 200 OK - 5ms (CACHE HIT) in my terminal, I realized the 'AI Bubble' isn't about the models—it's about the infrastructure protecting our margins.

Primary CTA: Star us on GitHub: [https://github.com/ANANDSUNNY0899/NexusGateway