Flatkey AI

Flatkey AI is a unified API gateway for teams building AI-powered products. Instead of juggling separate accounts, API keys, and billing dashboards for each model provider, you get one key and one base URL that routes requests to over 200 models — including GPT, Claude, Gemini, DeepSeek, and more. The service is designed to replace the chaos of managing multiple provider relationships with a single, consistent interface.

How does it work? You sign up, generate an API key, and point your existing OpenAI-compatible client to https://router.flatkey.ai/v1. That's it — no SDK changes needed. Behind the scenes, Flatkey AI intelligently routes requests across upstream accounts, automatically switching on errors and load balancing to keep things stable. The dashboard shows real-time usage, cost per request, and team quotas. You pay only for what you use, and you can set spending limits to avoid surprises. The platform also offers one-click install scripts for tools like Codex CLI and Claude Code, making it easy to route coding-agent traffic through Flatkey AI.

Flatkey AI is built for developers, AI product teams, and automation builders who need reliable, cost-effective access to multiple models. It's especially useful for teams that run high-volume AI workflows, compare model outputs, or manage shared API budgets. If you're tired of managing a dozen API keys and want a single pane of glass for model access, routing, and billing, Flatkey AI delivers exactly that — no fluff, just a straightforward API gateway.