If you've built anything on top of LLM APIs, you've probably hit the same wall I did: every provider wants its own account, its own top-up, its own API key. DeepSeek for coding, GLM for chat, Kimi for long context, Qwen for multilingual — suddenly your code is full of if provider == 'deepseek' b...
Source: [Dev.to](https://dev.to/yingsuan_ai/i-built-a-multi-provider-ai-api-gateway-one-key-for-18-models-auto-failover-time-of-day-pricing-3jhp)