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Why I built RouteScope (and why you might want to use it)

I used to spend more time switching between API providers than actually building features.

We were building an AI app with GPT-4. Then we wanted to try Claude for coding tasks. Then Gemini for something else. Three models. Three SDKs. Three billing systems. And every time we wanted to switch or test a new model, it meant rewriting integration code.

It felt wrong.

So we built RouteScope — a lightweight API gateway that gives you one unified interface for 70+ LLMs: OpenAI, Anthropic, Google, DeepSeek, Qwen, and more.

One API key. One SDK. One bill.

Switching models? Just change one parameter. No code rewrite.

We've been using it internally for months, and it's already saved us weeks of integration work. We recently open-sourced it and made it available to everyone.

If you're building with LLMs and tired of managing multiple API keys and SDKs, check it out: https://routescope.ai

Or dive into the code: https://github.com/RouteScope/routescope-gateway

Happy to answer questions — good or bad. Let me know what you think. 👇

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RouteScope
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    Managing multiple LLM APIs can definitely become a major headache. I've faced similar challenges when I was integrating AI features into my own project. Initially, I had to juggle between different providers, and it felt like I was continually rewriting and debugging code just to keep things functional. When I finally streamlined everything to a single API, it not only saved a ton of development time but also simplified the deployment process. The key was to focus on a unified system that could handle various models without needing to overhaul our codebase each time we switched providers. My team and I built a wrapper around the API to create a standardized interface for all requests, which allowed us to plug in different LLMs as they became available without major rewrites. In terms of performance, we also set up benchmarking to evaluate output quality across different models before deciding which ones to integrate. It was a lot of trial and error, but ultimately worth it. It’s exciting to see solutions like RouteScope emerge, as they can significantly cut down on that overhead and let developers focus on delivering value rather than wrestling with integrations. Keep refining it; I think it can make a real impact for folks in our space!
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    I think the biggest value isn't avoiding SDK rewrites—it's preserving optionality. The AI ecosystem changes so quickly that every hard dependency on a single provider becomes a strategic risk. Making model switching almost frictionless lets teams optimize for capability and cost over time instead of being locked into earlier technical decisions.