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HappyHorse

HappyHorse 模型通过一个统一的异步任务 API 调用。用 POST /api/generate 发起任务，再轮询 GET /api/generate/{taskId} 直到完成。本系列提供 7 个端点。

概览

每个端点共享相同的外层结构 —— 只有 model 和 input 字段不同。可在模型市场的 playground 中运行任意一个。

认证

在 /api-keys 创建 API 密钥，然后作为 Bearer token 发送。已登录时从浏览器发起的请求也可通过会话 cookie 生效。

Authorization: Bearer <YOUR_API_KEY>

创建任务

POST
POST https://api.lithovas.com/api/generate

请求体：{ "model": "<slug>", "input": { … } }

响应：{ "taskId": "<id>", "state": "waiting" }

查询结果

GET
GET https://api.lithovas.com/api/generate/<taskId>

响应：{ "taskId", "state": "waiting" | "success" | "fail", "resultUrls": [ … ], "creditsConsumed", "failMsg", "balance" }

异步
创建任务返回 200 只表示任务已被接受 —— 并非已完成。请轮询此端点，直到 state 变为 success 或 fail。失败任务不计费。

端点

模型任务model slug
HappyHorseText to Videohappyhorse/text-to-video
HappyHorseImage to Videohappyhorse/image-to-video
HappyHorseVideo to Videohappyhorse/reference-to-video
HappyHorseVideo Editinghappyhorse/video-edit
HappyHorse 1.1Image to Videohappyhorse-1-1/image-to-video
HappyHorse 1.1Text to Videohappyhorse-1-1/text-to-video
HappyHorse 1.1Video to Videohappyhorse-1-1/reference-to-video

HappyHorse · Text to Video

POSTText to Videohappyhorse/text-to-video
input 字段
promptstring必填

Text description of video to generate; max 5000 chars (2500 Chinese)

resolutionenum<string>可选

Output video resolution setting

aspect_ratioenum<string>可选

Output aspect ratio format

durationinteger可选

Video length in seconds (3-15 range)

seedinteger可选

Random seed for reproducible generation (0-2147483647)

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse/text-to-video",
  "input": {
    "prompt": "A cinematic red panda surfing through neon rain at dusk.",
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "duration": 5,
    "seed": 0
  }
}'

HappyHorse · Image to Video

POSTImage to Videohappyhorse/image-to-video
input 字段
promptstring可选

Text description for video generation (max 5000 chars)

image_urlsarray<string>必填

Exactly one first-frame image URL (JPEG/PNG/WEBP, 300+ px)

resolutionenum<string>可选

Output video resolution

durationinteger可选

Video length in seconds (3-15 range)

seedinteger可选

Random seed for reproducibility (0-2147483647)

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse/image-to-video",
  "input": {
    "prompt": "Animate the image with natural motion, subtle camera movement, and cinematic lighting.",
    "image_urls": [
      "https://example.com/input.jpg"
    ],
    "resolution": "1080p",
    "duration": 5,
    "seed": 0
  }
}'

HappyHorse · Video to Video

POSTVideo to Videohappyhorse/reference-to-video
input 字段
promptstring必填

Text prompt describing the video to generate (any language)

reference_imagearray<string>必填

Reference image URL list. Provide 1-9 images

resolutionenum<string>可选

Output video resolution

aspect_ratioenum<string>可选

Output aspect ratio

durationinteger可选

Output duration in seconds (integer, 3-15)

seedinteger可选

Random seed for reproducibility (if supported)

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse/reference-to-video",
  "input": {
    "prompt": "Restyle the source footage with richer lighting, cleaner motion, and a cinematic grade.",
    "reference_image": [
      "https://example.com/input.jpg"
    ],
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "duration": 5,
    "seed": 0
  }
}'

HappyHorse · Video Editing

POSTVideo Editinghappyhorse/video-edit
input 字段
promptstring必填

Edit instruction for intended change; max 5000 chars (2500 Chinese)

video_urlstring必填

Input video URL (MP4/MOV, 3-60s, max 2160px longer side)

reference_imagearray<string>可选

Optional reference images (0-5 URLs, JPEG/PNG/WEBP, >=300px)

resolutionenum<string>可选

Output video resolution

audio_settingenum<string>可选

Audio handling strategy

seedinteger可选

Random seed for reproducibility (0-2147483647)

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse/video-edit",
  "input": {
    "prompt": "A cinematic red panda surfing through neon rain at dusk.",
    "video_url": "https://example.com/reference.mp4",
    "reference_image": [
      "https://example.com/input.jpg"
    ],
    "resolution": "1080p",
    "audio_setting": "auto",
    "seed": 0
  }
}'

HappyHorse 1.1 · Image to Video

POSTImage to Videohappyhorse-1-1/image-to-video
input 字段
promptstring可选

Describes video content to generate; max 5000 chars

image_urlsarray<string>必填

URL of first frame image (JPEG/PNG/WEBP, 300px+ min)

resolutionenum<string>可选

Output video resolution

durationnumber可选

Video length in seconds; range [3, 15]

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse-1-1/image-to-video",
  "input": {
    "prompt": "Animate the image with natural motion, subtle camera movement, and cinematic lighting.",
    "image_urls": [
      "https://example.com/input.jpg"
    ],
    "resolution": "1080p",
    "duration": 5
  }
}'

HappyHorse 1.1 · Text to Video

POSTText to Videohappyhorse-1-1/text-to-video
input 字段
promptstring必填

Text description of the video; max 5000 chars (2500 Chinese)

resolutionenum<string>可选

Output video resolution

aspect_ratioenum<string>可选

Output video aspect ratio

durationnumber可选

Output video duration in seconds (3-15, whole numbers)

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse-1-1/text-to-video",
  "input": {
    "prompt": "A cinematic red panda surfing through neon rain at dusk.",
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "duration": 5
  }
}'

HappyHorse 1.1 · Video to Video

POSTVideo to Videohappyhorse-1-1/reference-to-video
input 字段
promptstring必填

Description of desired elements and visual style for the video

reference_imagearray<string>必填

URLs of reference images (JPEG/PNG/WEBP, min 400px, max 20MB)

resolutionenum<string>可选

Output video resolution tier

aspect_ratioenum<string>可选

Video aspect ratio format

durationnumber可选

Video length in seconds (integer, 3-15 range)

示例
cURL
curl -X POST https://api.lithovas.com/api/generate \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "happyhorse-1-1/reference-to-video",
  "input": {
    "prompt": "Restyle the source footage with richer lighting, cleaner motion, and a cinematic grade.",
    "reference_image": [
      "https://example.com/input.jpg"
    ],
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "duration": 5
  }
}'