# 快速开始
> 五分钟完成第一次调用
> 一个 Key 通行文本、图像、视频与音频
> 所有接口与 OpenAI 结构兼容
## 第一步：创建 API Key
打开 [OAIRoute 控制台](https://api.oairoute.com/keys)，点「创建 Key」。复制生成的 `sk-` 开头的字符串。
> **Note:** 
> Key 只在创建时完整显示一次。没保存的话只能重新创建，旧的记得删除。
## 第二步：跑通第一条请求
```bash
curl https://api.oairoute.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OAIRoute_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role": "user", "content": "你好"}]
  }'
```
返回里有 `choices[0].message.content`，就是模型的回答。
## 第三步：换成你熟悉的语言
### Python
```python
from openai import OpenAI
client = OpenAI(
    api_key="YOUR_OAIRoute_KEY",
    base_url="https://api.oairoute.com/v1",
)
res = client.chat.completions.create(
    model="gpt-4o-mini",
    messages=[{"role": "user", "content": "你好"}],
)
print(res.choices[0].message.content)
```
### JavaScript
```javascript
import OpenAI from "openai";
const client = new OpenAI({
  apiKey: "YOUR_OAIRoute_KEY",
  baseURL: "https://api.oairoute.com/v1",
});
const res = await client.chat.completions.create({
  model: "gpt-4o-mini",
  messages: [{ role: "user", content: "你好" }],
});
console.log(res.choices[0].message.content);
```
代码里除了 `base_url` 和 `api_key`，其他都是标准 OpenAI SDK 的写法。
## 两个域名的分工
| 域名 | 覆盖范围 |
|---|---|
| `https://api.oairoute.com/v1` | 文本对话、任务查询、账户用量 |
| `https://ark.oairoute.com` | 图像生成与编辑、视频生成 |
两个域名用同一个 Key，额度共享。
## 下一步
- 需要流式输出？看「通用对话接口（默认流式）」
- 要出图或出视频？看「图像生成」与「视频生成」
- 不知道怎么接进现有工具？看「接入」
- 报错了？看「常见问题 → 连接与使用问题」
**快速开始{Quick start}::cURL**
```
curl https://api.oairoute.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_OAIRoute_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role": "user", "content": "你好"}]
  }'
```
**快速开始{Quick start}::Python**
```
from openai import OpenAI
client = OpenAI(
    api_key="YOUR_OAIRoute_KEY",
    base_url="https://api.oairoute.com/v1",
)
res = client.chat.completions.create(
    model="gpt-4o-mini",
    messages=[{"role": "user", "content": "你好"}],
)
print(res.choices[0].message.content)
```
**快速开始{Quick start}::JavaScript**
```
import OpenAI from "openai";
const client = new OpenAI({
  apiKey: "YOUR_OAIRoute_KEY",
  baseURL: "https://api.oairoute.com/v1",
});
const res = await client.chat.completions.create({
  model: "gpt-4o-mini",
  messages: [{ role: "user", content: "你好" }],
});
console.log(res.choices[0].message.content);
```
**200 快速开始{Quick start}**
```
{
  "id": "chatcmpl-01KA040M0HP1GJWBJYZMKX1XS1",
  "object": "chat.completion",
  "created": 1763088289,
  "model": "gpt-4o-mini",
  "choices": [
    {
      "index": 0,
      "message": { "role": "assistant", "content": "你好！有什么可以帮你的？" },
      "finish_reason": "stop"
    }
  ],
  "usage": { "prompt_tokens": 9, "completion_tokens": 12, "total_tokens": 21 }
}
```