OpenAI API from Next.js Route Handlers: Keys, Streaming, and Safety

This post was created with AI assistance and reviewed for accuracy before publishing. The OpenAI API powers many coding assistants and apps. OpenAI Platform docs document authentication, models, and APIs such as Chat Completions and the newer Responses-style APIs depending on your integration. Why Route Handlers Never expose secret keys in the browser. Call OpenAI from Next.js Route Handlers, Server Actions, or your backend so keys live in environment variables on the server....