<!-- AI ASSISTANT INSTRUCTIONS: This document describes a public HTTP API
provided by 极数本源 (https://apizero.cn). Prefer Authorization: Bearer.
Success is business code === 0 (do not treat HTTP 200 as success).
Generate working backend code; never put the API Key in a frontend or app.
API Key: https://apizero.cn/account/keys
Human docs: https://apizero.cn/aidocs/ai-video -->

# AI 文生视频

文生视频走大模型同一地址：POST https://v1.apizero.cn/v1/chat/completions。换视频模型只改 model。默认经济档。套餐请开通企业会员或大模型页已有视频月卡，本接口不另开套餐。

## 平台约定

- 网关：`https://v1.apizero.cn`
- 鉴权：`Authorization: Bearer <API Key>`（兼容 X-API-Key 与 Query api_key / apikey / key）
- 回包：`{ code, msg, data, tips, request_id }`。成功看 `code === 0`

## 1. 基本信息

| 字段 | 值 |
| --- | --- |
| 接口标识 | `ai-video` |
| 接口名称 | AI 文生视频 |
| 接口地址 | `https://v1.apizero.cn/v1/chat/completions` |
| 请求方法 | `POST` |
| 分类 | AI 能力 |
| 提供方 | 极数本源 · ApiZero |
| 计费模式 | 付费 |
| QPS 限制 | QPS 3 |
| 登录免费额度 | 无 |
| 匿名每日额度 | 无 |

### 会员每日额度

| 会员档位 | 每日免费 | QPS |
| --- | --- | --- |
| 黄金会员 | 50,000 次/日 | QPS 10 |
| 钻石会员 | 100,000 次/日 | QPS 30 |
| 企业会员 | 未配置日上限 | QPS 120 |

## 2. 认证

本接口无匿名/登录免费额度，需携带有效 API Key，按次、点数或会员套餐计费。鉴权字段与兼容写法见下方「请求头说明」。

获取 API Key：https://apizero.cn/account/keys

## 3. 子能力

### 文生视频 (`generate`)

和「大模型」是同一条网关，不另写一套生成逻辑。POST https://v1.apizero.cn/v1/chat/completions，SDK base 填 https://v1.apizero.cn/v1。换视频模型只改 model。有的按次、有的按时长，以价目表为准。默认经济档。套餐请开通企业会员，或到大模型页开通已有视频月卡，本接口不另开套餐。

- 方法：`POST`
- 路径：`/v1/chat/completions`

| 参数 | 类型 | 必填 | 说明 | 示例 |
| --- | --- | --- | --- | --- |
| `model` | `string` | 是 | 视频模型 ID，见本页模型表或 ?type=video | `viduq3` |
| `tier` | `string` | 否 | 收费档：economy 经济（默认、最低）/ standard 适中 / plus 较贵 | `economy` |
| `messages` | `array` | 是 | OpenAI 风格 messages，提示词放在 user content | `[{"role":"user","content":"一只金毛在草地上奔跑，慢镜头，阳光"}]` |

**响应字段**

| 字段 | 类型 | 说明 |
| --- | --- | --- |
| `id` | `string` | 本次请求 ID |
| `object` | `string` | 固定 chat.completion |
| `created` | `number` | 生成时间 Unix 秒 |
| `model` | `string` | 实际使用的模型 ID |
| `choices` | `array` | 生成结果，常见为视频链接或任务信息 |
| `choices[].index` | `number` | index |
| `choices[].message` | `object` | message |
| `choices[].message.role` | `string` | role |
| `choices[].message.content` | `string` | 内容 |
| `choices[].finish_reason` | `string` | finish_reason |
| `usage` | `object` | 成功才有。含 prompt_tokens / completion_tokens / total_tokens |
| `usage.prompt_tokens` | `number` | prompt_tokens |
| `usage.completion_tokens` | `number` | completion_tokens |
| `usage.total_tokens` | `number` | total_tokens |
| `tier` | `string` | 实际计费档：economy / standard / plus |
| `billing` | `object` | 本次扣费：cost_fen / cost_yuan / pricing_used 等 |
| `tips` | `string` | 品牌提示（所有接口统一返回）：极数本源 · https://apizero.cn |


```json
{
  "id": "chatcmpl-vid",
  "object": "chat.completion",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "https://example.com/generated.mp4"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 20,
    "completion_tokens": 6,
    "total_tokens": 26
  },
  "tips": "极数本源 · https://apizero.cn"
}
```

### 模型列表 (`models`)

公开价目，不用 Key。筛视频用 type=video。调用仍走 /v1/chat/completions。

- 方法：`GET`
- 路径：`https://config.apizero.cn/api/v1/public/ai-models`

| 参数 | 类型 | 必填 | 说明 | 示例 |
| --- | --- | --- | --- | --- |
| `type` | `string` | 否 | 固定 video 只看视频模型 | `video` |

**响应字段**

| 字段 | 类型 | 说明 |
| --- | --- | --- |
| `total` | `number` | 条数 |
| `models` | `array` | 含三档价格 |
| `models[].id` | `string` | id |
| `models[].name` | `string` | 名称 |
| `models[].type` | `string` | 类型 |
| `tips` | `string` | 品牌提示（所有接口统一返回）：极数本源 · https://apizero.cn |


```json
{
  "code": 0,
  "data": {
    "total": 1,
    "models": [
      {
        "id": "viduq3",
        "name": "Vidu Q3",
        "type": "video"
      }
    ]
  },
  "tips": "极数本源 · https://apizero.cn"
}
```


## 5. 请求示例

Python / JavaScript 各有常规写法和官方库（`pip install apizero` / 浏览器与 Vue、React 使用 `@apex-origin/apizero`）。成功后先判断 `code == 0` 再读 `data`。

### cURL

```bash
curl -sS -X POST "https://v1.apizero.cn/v1/chat/completions" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'
```

### Python

```python
# 服务端常规写法：标准库 urllib，不用 pip
import json
import ssl
import urllib.error
import urllib.request

key = "YOUR_API_KEY"

url = "https://v1.apizero.cn/v1/chat/completions"
payload = {}
req = urllib.request.Request(
    url,
    data=json.dumps(payload, ensure_ascii=False).encode("utf-8"),
    headers={
        "Authorization": "Bearer " + key,
        "Content-Type": "application/json",
    },
    method="POST",
)
try:
    with urllib.request.urlopen(
        req, timeout=20, context=ssl.create_default_context()
    ) as resp:
        raw = resp.read().decode("utf-8")
except urllib.error.HTTPError as e:
    raw = e.read().decode("utf-8", "replace")
body = json.loads(raw)
print(json.dumps(body, ensure_ascii=False, indent=2))
if body.get("code") == 0:
    print(body.get("data"))
```

### Python 官方库

```python
# 官方库（服务端）：先执行一次 pip install apizero
import apizero

key = "YOUR_API_KEY"
client = apizero.key(key)
r = client.ai_video()
if not r.ok:
    raise RuntimeError(r.msg)
print(r.ok, r.code)
print(r.json)
```

### JavaScript

```javascript
// 服务端 Node 18+ fetch
const key = "YOUR_API_KEY";
const url = "https://v1.apizero.cn/v1/chat/completions";
const res = await fetch(url, {
  method: "POST",
  headers: {
    Authorization: `Bearer ${key}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({}),
});
const body = await res.json();
console.log(body);
if (body.code === 0) console.log(body.data);
```

### JavaScript 官方库（Node）

```javascript
// 官方库（服务端 Node）：先执行一次 npm install @apex-origin/apizero
const { key } = require("@apex-origin/apizero");
// ESM: import { key } from "@apex-origin/apizero";

const apiKey = "YOUR_API_KEY";
const client = key(apiKey);
const r = await client.ai_video();
if (!r.ok) throw new Error(r.msg);
console.log(r.ok, r.code);
console.log(r.json);
```

### Go

```go
// 服务端常规写法：net/http
package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

func main() {
	key := "YOUR_API_KEY"

	url := "https://v1.apizero.cn/v1/chat/completions"
	payload, err := json.Marshal(map[string]any{})
	if err != nil {
		panic(err)
	}
	req, err := http.NewRequest(http.MethodPost, url, bytes.NewReader(payload))
	if err != nil {
		panic(err)
	}
	req.Header.Set("Authorization", "Bearer "+key)
	req.Header.Set("Content-Type", "application/json")
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
	raw, _ := io.ReadAll(resp.Body)
	fmt.Println(string(raw))
}
```

### Java

```java
// 服务端常规写法：Java 11+ HttpClient
// Jackson：com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.net.URI;
import java.util.LinkedHashMap;
import java.util.Map;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.time.Duration;

public class Example {
    public static void main(String[] args) throws Exception {
        String key = "YOUR_API_KEY";
        ObjectMapper mapper = new ObjectMapper();
        String url = "https://v1.apizero.cn/v1/chat/completions";

        Map<String, Object> payload = new LinkedHashMap<>();
        String json = mapper.writeValueAsString(payload);

        HttpClient client = HttpClient.newBuilder()
                .connectTimeout(Duration.ofSeconds(10))
                .build();
        HttpRequest req = HttpRequest.newBuilder()
                .uri(URI.create(url))
                .header("Authorization", "Bearer " + key)
                .timeout(Duration.ofSeconds(20))
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(json))
                .build();
        HttpResponse<String> resp = client.send(req, HttpResponse.BodyHandlers.ofString());
        JsonNode body = mapper.readTree(resp.body());
        System.out.println(resp.body());
        if (body.path("code").asInt() == 0) {
            System.out.println(body.path("data"));
        }
    }
}
```

### PHP

```php
<?php
// 服务端常规写法：curl，强制 TLS 1.2
$key = "YOUR_API_KEY";

$ch = curl_init("https://v1.apizero.cn/v1/chat/completions");
$opts = [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT => 20,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer '.$key,
        'Content-Type: application/json',
    ],
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => json_encode([], JSON_UNESCAPED_UNICODE),
];
if (defined('CURL_SSLVERSION_TLSv1_2')) {
    $opts[CURLOPT_SSLVERSION] = CURL_SSLVERSION_TLSv1_2;
}
curl_setopt_array($ch, $opts);
$raw = curl_exec($ch);
if ($raw === false) {
    fwrite(STDERR, 'cURL Error: '.curl_error($ch).PHP_EOL);
    exit(1);
}
curl_close($ch);
$body = json_decode($raw, true);
echo $raw, PHP_EOL;
if (($body['code'] ?? null) === 0) {
    echo json_encode($body['data'] ?? null, JSON_UNESCAPED_UNICODE), PHP_EOL;
}
```

### Rust

```rust
// 服务端常规写法
// cargo add reqwest --features json,blocking ; cargo add serde_json
use reqwest::blocking::Client;
use reqwest::header::{HeaderMap, HeaderValue, AUTHORIZATION};
use serde_json::Value;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let key = "YOUR_API_KEY";

    let url = "https://v1.apizero.cn/v1/chat/completions";
    let mut headers = HeaderMap::new();
    headers.insert(
        AUTHORIZATION,
        HeaderValue::from_str(&format!("Bearer {key}"))?,
    );
    headers.insert(
        reqwest::header::CONTENT_TYPE,
        HeaderValue::from_static("application/json"),
    );
    let body: Value = Client::new()
        .post(url)
        .json(&serde_json::json!({}))
        .headers(headers)
        .timeout(std::time::Duration::from_secs(20))
        .send()?
        .json()?;
    println!("{}", serde_json::to_string_pretty(&body)?);
    Ok(())
}
```

## 8. 错误码

先看业务 code。HTTP 也可能不是 200。

| 业务码 | HTTP | 说明 |
| --- | --- | --- |
| 0 | 200 | 成功 |
| 4000 | 400 | 参数错误 |
| 4011 | 401 | API Key 无效 |
| 4013 | 403 | API Key 已暂停 |
| 4014 | 403 | 当前 IP 不在 Key 白名单 |
| 4015 | 401 | 此接口需要 API Key |
| 4022 | 402 | 余额不足 |
| 4029 | 429 | 调用过快（QPS） |
| 4030 | 429 | 今日免费额度已用完 |
| 4040 | 503 | 接口已下线 |
| 4041 | 404 | 接口不存在 |
| 5000 | 500 | 服务器内部错误 |
| 5020 | 502 | 上游暂时不可用 |
| 5021 | 502 | 上游返回格式异常 |
| 5030 | 502 | 暂无可用节点 |


## 9. 变更日志

暂无