Seedream/Seedance MCP Server
Integrates Volcengine's Ark API to provide image and video generation and editing capabilities. It supports both local stdio and remote HTTP transport modes for flexible deployment and use.
README
火山方舟 Seedream / Seedance MCP 服务
一个基于火山方舟(Ark)API 的 MCP 服务,提供:
- Seedream 图片生成/编辑
- Seedance 视频生成(异步任务)
- 本地
stdio与远程http两种接入模式
功能概览
| 能力 | 状态 | 说明 |
|---|---|---|
| 图片生成/编辑 | 可用 | 基于 POST /api/v3/images/generations |
| 视频生成 | 可用 | 基于 POST /api/v3/contents/generations/tasks + 查询任务 |
| 本地接入 | 可用 | StdioServerTransport |
| 远程接入 | 可用 | StreamableHTTPServerTransport |
快速开始
环境要求
- Node.js 18+
- pnpm
安装依赖
pnpm install
构建
pnpm build
环境变量
| 变量名 | 必填 | 默认值 | 说明 |
|---|---|---|---|
ARK_API_KEY |
是 | - | 火山方舟 API Key |
MCP_TRANSPORT |
否 | stdio |
传输模式:stdio 或 http |
MCP_HTTP_HOST |
否 | 0.0.0.0 |
http 模式监听地址 |
MCP_HTTP_PORT |
否 | 3000 |
http 模式监听端口 |
MCP_HTTP_PATH |
否 | /mcp |
http 模式 MCP 路径 |
可在项目根目录创建 .env:
ARK_API_KEY=your_ark_api_key
MCP_TRANSPORT=stdio
启动方式
1. 本地模式(默认,stdio)
pnpm build
node build/index.js
2. 远程模式(http)
PowerShell 示例:
$env:ARK_API_KEY="your_ark_api_key"
$env:MCP_TRANSPORT="http"
$env:MCP_HTTP_HOST="0.0.0.0"
$env:MCP_HTTP_PORT="3000"
$env:MCP_HTTP_PATH="/mcp"
node build/index.js
服务启动后地址示例:
http://127.0.0.1:3000/mcp
MCP 客户端接入
本地命令方式(stdio)
{
"mcpServers": {
"jimenggen": {
"command": "node",
"args": [
"/path/to/jimenggen-mcp/build/index.js"
],
"env": {
"ARK_API_KEY": "your_ark_api_key",
"MCP_TRANSPORT": "stdio"
}
}
}
}
远程地址方式(http)
不同客户端配置字段可能不同,核心是把 MCP 服务地址指向:
http://your-host:3000/mcp
工具列表
可用工具
| 工具名 | 用途 |
|---|---|
text-to-image |
文生图 |
image-to-image |
图生图 |
generate-image |
通用图片生成/编辑(支持 URL 与上传文件) |
generate-img-seedream4 |
直接调用 Seedream API 生成图片 |
generate-video |
视频生成(异步任务,内置轮询) |
停用工具
generate-digital-humanaction-imitationimage-dressing
模型清单
Seedream(图片)
doubao-seedream-5-0-lite-260128(默认)doubao-seedream-5-0-260128doubao-seedream-4-5-251128doubao-seedream-4-0-250828
Seedance(视频)
doubao-seedance-1-5-pro-251215(默认)doubao-seedance-1-0-pro-250528doubao-seedance-1-0-pro-fast-251015doubao-seedance-1-0-lite-t2v-250428doubao-seedance-1-0-lite-i2v-250428
视频生成(generate-video)
generate-video 使用异步任务流程:
- 创建任务:
POST /contents/generations/tasks - 查询任务:
GET /contents/generations/tasks/{id} - 成功后读取:
content.video_url
任务状态:
queuedrunningsucceededfailedexpired
主要参数:
| 参数 | 类型 | 说明 |
|---|---|---|
prompt |
string | 必填,视频提示词 |
model |
string | 可选,默认 doubao-seedance-1-5-pro-251215 |
duration |
5/10 |
可选,默认 5 秒 |
ratio |
enum | 可选:adaptive、16:9、4:3、1:1、3:4、9:16、21:9 |
imageUrl |
string | 可选,首帧图 URL(图生视频) |
generate_audio |
boolean | 可选,默认 true |
watermark |
boolean | 可选,默认 false |
callback_url |
string | 可选,任务状态回调地址 |
poll_interval_ms |
number | 可选,默认 10000 |
max_poll_attempts |
number | 可选,默认 60 |
兼容参数映射:
frames=121映射为duration=5frames=241映射为duration=10aspect_ratio在值合法时映射到ratio
说明:根据官方文档,Seedance 2.0 当前仅支持控制台体验,暂不支持 API 调用。
常见问题
1. 报错:未设置 ARK_API_KEY
请确认环境变量已设置,并且启动进程能读取该变量。
2. http 模式返回 404
请检查客户端访问路径是否与 MCP_HTTP_PATH 一致,默认是 /mcp。
3. 视频任务超时
可适当调大 max_poll_attempts,或增大 poll_interval_ms 后重试。
参考文档
- 视频生成教程:https://www.volcengine.com/docs/82379/1366799?lang=zh
- 视频 API 参考:https://www.volcengine.com/docs/82379/1520758?lang=zh
- 快速入门(API Key):https://www.volcengine.com/docs/82379/1399008?lang=zh
- Seedream 教程:https://www.volcengine.com/docs/82379/1824121?lang=zh
- 模型列表:https://www.volcengine.com/docs/82379/1330310
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