[简体版] Qwen API for Beginners: API Key, Base URL, and First Request
这是一篇简体中文本地化占位页。正式版本会根据中文搜索词、AEO 问答和转化 CTA 重新改写：A plain-English explanation of Qwen API setup for people who know AI tools but are new to API keys and base URLs.
快速答案
简体中文答案块占位：To use Qwen API, you need an Alibaba Cloud Model Studio account, an API key, a compatible endpoint or base URL, and a model name. Many beginner issues come from mixing up API key, endpoint, model name, and billing plan.
API key vs base URL
The API key proves who you are. The base URL tells your app where to send model requests.
Why OpenAI compatibility matters
OpenAI-compatible APIs let many existing tools switch providers by changing the base URL and model name instead of rewriting the whole app.
Beginner mistake to avoid
Do not paste API keys into public GitHub repos, screenshots, or client-side browser code.