Introduction

If you've ever been mid-conversation with Claude or GPT, hit a quota limit, and switched to a local Ollama model,you know the pain. The local model has zero context. It's like walking into a meeting 45 minutes late and nobody catches you up.

I got frustrated enough to build something about it. That something is Trooper.

What is Trooper

Trooper is a lightweight Go proxy (~850 lines, two files) that sits between your application and your LLM providers. When a cloud provider returns a quota error (429, 402, 529), Trooper automatically falls back to a local Ollama instance without dropping the conversation context.

Single binary. Zero dependencies. Easy to audit since it sits in front of your API keys.

The real problem: context loss on fallback

Most fallback proxies solve the routing problem but ignore the context problem.…