Portkey Has a Free API: The AI Gateway That Routes Between OpenAI, Anthropic, and 200+ LLMs With Automatic Fallbacks

Your app uses OpenAI. OpenAI goes down at 2am. Your users get errors. You could add Anthropic as a fallback, but that means refactoring every LLM call with retry logic, model mapping, and response normalization. Portkey is a unified AI gateway that handles routing, fallbacks, load balancing, and caching across 200+ LLMs through one API. What Portkey Actually Does Portkey is an AI gateway that sits between your application and LLM providers. You make one API call to Portkey, and it routes to OpenAI, Anthropic, Google, Mistral, Llama, or any of 200+ models. If one provider fails, it automatically falls back to another. If the same prompt is sent twice, it returns a cached response. Portkey provides: unified API (same format for all providers), automatic fallbacks, load balancing, semantic caching, request/response logging, rate limiting, budget controls, and a prompt playground. Open-source gateway (Apache 2.0). Portkey Cloud free tier: 10K requests/month. Quick Start Drop-in OpenAI SDK