HappyHorse 图生视频 API 参考

HappyHorse-1.1-i2v 图生视频 API 参考与在线调试：首帧图生成视频（不支持音频驱动），DashScope 异步透传端点。

POST /wan/api/v1/services/aigc/video-generation/video-synthesis

图生视频：首帧图创建视频生成任务

cURL

curl --request POST \
  --url https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-DashScope-Async: <x-dashscope-async>' \
  --data '
{
  "model": "happyhorse-1.1-i2v",
  "input": {
    "prompt": "一只猫在草地上奔跑，阳光明媚，镜头跟随",
    "media": [
      {
        "type": "first_frame",
        "url": "https://your-cdn.com/cat.png"
      }
    ]
  }
}
'

import requests

url = "https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis"

payload = {
    "model": "happyhorse-1.1-i2v",
    "input": {
        "prompt": "一只猫在草地上奔跑，阳光明媚，镜头跟随",
        "media": [
            {
                "type": "first_frame",
                "url": "https://your-cdn.com/cat.png"
            }
        ]
    }
}
headers = {
    "X-DashScope-Async": "<x-dashscope-async>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'X-DashScope-Async': '<x-dashscope-async>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    model: 'happyhorse-1.1-i2v',
    input: {
      prompt: '一只猫在草地上奔跑，阳光明媚，镜头跟随',
      media: [{type: 'first_frame', url: 'https://your-cdn.com/cat.png'}]
    }
  })
};

fetch('https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'happyhorse-1.1-i2v',
    'input' => [
        'prompt' => '一只猫在草地上奔跑，阳光明媚，镜头跟随',
        'media' => [
                [
                                'type' => 'first_frame',
                                'url' => 'https://your-cdn.com/cat.png'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "X-DashScope-Async: <x-dashscope-async>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis"

	payload := strings.NewReader("{\n  \"model\": \"happyhorse-1.1-i2v\",\n  \"input\": {\n    \"prompt\": \"一只猫在草地上奔跑，阳光明媚，镜头跟随\",\n    \"media\": [\n      {\n        \"type\": \"first_frame\",\n        \"url\": \"https://your-cdn.com/cat.png\"\n      }\n    ]\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-DashScope-Async", "<x-dashscope-async>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis")
  .header("X-DashScope-Async", "<x-dashscope-async>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"happyhorse-1.1-i2v\",\n  \"input\": {\n    \"prompt\": \"一只猫在草地上奔跑，阳光明媚，镜头跟随\",\n    \"media\": [\n      {\n        \"type\": \"first_frame\",\n        \"url\": \"https://your-cdn.com/cat.png\"\n      }\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-DashScope-Async"] = '<x-dashscope-async>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"happyhorse-1.1-i2v\",\n  \"input\": {\n    \"prompt\": \"一只猫在草地上奔跑，阳光明媚，镜头跟随\",\n    \"media\": [\n      {\n        \"type\": \"first_frame\",\n        \"url\": \"https://your-cdn.com/cat.png\"\n      }\n    ]\n  }\n}"

response = http.request(request)
puts response.read_body

200

{
  "output": {
    "task_id": "hh-...",
    "task_status": "PENDING"
  },
  "request_id": "..."
}

右侧 Playground 可直接调试：在 Authorization 填 Bearer sk-your-api-key，填好 model / input.media / parameters 后发起请求。提交成功返回 task_id，轮询与下载见下方说明。

本页是 happyhorse-1.1-i2v（图生视频）的创建接口：给一张首帧图 + prompt，让画面动起来。完整异步流程见 HappyHorse 概览。

• HappyHorse 的 i2v 不支持 driving_audio（音频驱动）：只接受 first_frame。做对口型 / rap 请用 Wan2.7-i2v。
• input.media 必填，否则上游报 图生视频模型 ... 必须提供图片。媒体 url 必须是公网可直接 GET 的 https 链接。
• 创建请求走 /wan/api/v1/... 并带 X-DashScope-Async: enable，不要用 /v1/videos。

​

代码示例

cURL

curl -X POST "https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis" \
  -H "X-DashScope-Async: enable" \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "happyhorse-1.1-i2v",
    "input": {
      "prompt": "一只猫在草地上奔跑，阳光明媚，镜头跟随",
      "media": [
        {"type": "first_frame", "url": "https://your-cdn.com/cat.png"}
      ]
    },
    "parameters": {"resolution": "720P", "duration": 5, "prompt_extend": true, "watermark": true}
  }'

import requests

url = "https://api.apiyi.com/wan/api/v1/services/aigc/video-generation/video-synthesis"
headers = {
    "Authorization": "Bearer sk-your-api-key",
    "Content-Type": "application/json",
    "X-DashScope-Async": "enable",
}
body = {
    "model": "happyhorse-1.1-i2v",
    "input": {
        "prompt": "一只猫在草地上奔跑，阳光明媚，镜头跟随",
        "media": [{"type": "first_frame", "url": "https://your-cdn.com/cat.png"}],
    },
    "parameters": {"resolution": "720P", "duration": 5, "prompt_extend": True, "watermark": True},
}
resp = requests.post(url, json=body, headers=headers, timeout=30)
print("task_id:", resp.json()["output"]["task_id"])

​

参数与媒体速查

参数	类型	必填	默认	说明
model	string	✓	—	固定 happyhorse-1.1-i2v
input.prompt	string	✓	—	文本提示词
input.media	array	✓	—	见下方媒体表
parameters.resolution	string		720P	720P / 1080P
parameters.duration	int		5	2–15 秒整数
parameters.prompt_extend	bool		true	智能改写，推荐开启
parameters.watermark	bool		false	「AI 生成」水印

​

media[] 取值

type	必填	张数	说明
first_frame	✓	1	首帧图，视频从这张图开始（HappyHorse i2v 仅支持此项）

​

响应格式

{
  "output": { "task_id": "...", "task_status": "PENDING" },
  "request_id": "..."
}

提交后 轮询 GET /v1/tasks/{task_id} 直到 completed，再从 result_url 下载 mp4（不带 Authorization 头，24 小时过期）。完整轮询循环见 HappyHorse 概览 · 异步调用流程。

授权

Authorization · string · header · 必填

在 API易控制台获取的 API Key

请求头

X-DashScope-Async · enum<string> · 默认值: enable · 必填

异步处理开关，必须设置为 enable

可用选项: enable

请求体

application/json

model · enum<string> · 默认值: happyhorse-1.1-i2v · 必填

模型 ID，图生视频固定 happyhorse-1.1-i2v

可用选项: happyhorse-1.1-i2v

input · object · 必填

Show child attributes

parameters · object

Show child attributes

响应

200

application/json

任务已提交，返回 task_id 与 PENDING 状态

output · object

Show child attributes

request_id · string

请求唯一标识

示例:

"..."