Seedream MCP Server

Integrates Volcengine's Ark API for image and video generation and editing.

README.md

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 - 火山方舟 API Key
MCP_TRANSPORT stdio 传输模式:stdiohttp
MCP_HTTP_HOST 0.0.0.0 http 模式监听地址
MCP_HTTP_PORT 3000 http 模式监听端口
MCP_HTTP_PATH /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-human
  • action-imitation
  • image-dressing

模型清单

Seedream(图片)

  • doubao-seedream-5-0-lite-260128(默认)
  • doubao-seedream-5-0-260128
  • doubao-seedream-4-5-251128
  • doubao-seedream-4-0-250828

Seedance(视频)

  • doubao-seedance-1-5-pro-251215(默认)
  • doubao-seedance-1-0-pro-250528
  • doubao-seedance-1-0-pro-fast-251015
  • doubao-seedance-1-0-lite-t2v-250428
  • doubao-seedance-1-0-lite-i2v-250428

视频生成(generate-video)

generate-video 使用异步任务流程:

  1. 创建任务:POST /contents/generations/tasks
  2. 查询任务:GET /contents/generations/tasks/{id}
  3. 成功后读取:content.video_url

任务状态:

  • queued
  • running
  • succeeded
  • failed
  • expired

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
ratio enum 可选:adaptive16:94:31:13:49:1621:9
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=5
  • frames=241 映射为 duration=10
  • aspect_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

Tools 5

text-to-imageGenerates an image from a text prompt.
image-to-imageGenerates an image based on an existing image and a prompt.
generate-imageGeneral image generation and editing tool supporting URL and file uploads.
generate-img-seedream4Directly calls the Seedream API to generate images.
generate-videoGenerates a video from a prompt using an asynchronous task process.

Environment Variables

ARK_API_KEYrequiredVolcengine Ark API Key
MCP_TRANSPORTTransport mode: stdio or http
MCP_HTTP_HOSTHTTP mode listening address
MCP_HTTP_PORTHTTP mode listening port
MCP_HTTP_PATHHTTP mode MCP path

Try it

Generate a high-quality image of a futuristic city skyline at sunset.
Create a 5-second video based on the prompt 'a cat playing with a ball of yarn' using the default model.
Use the image-to-image tool to transform my uploaded sketch into a realistic oil painting.
Generate a 10-second video with a 16:9 aspect ratio showing a mountain landscape.

Frequently Asked Questions

What are the key features of Seedream MCP?

Seedream image generation and editing capabilities. Seedance video generation via asynchronous tasks. Support for both local stdio and remote HTTP transport modes. Built-in polling mechanism for video generation tasks.

What can I use Seedream MCP for?

Automating image asset creation for design workflows. Generating short video clips for social media content. Integrating Volcengine AI models into local development environments. Building custom AI-powered creative tools using Claude.

How do I install Seedream MCP?

Install Seedream MCP by running: pnpm install && pnpm build

What MCP clients work with Seedream MCP?

Seedream MCP works with any MCP-compatible client including Claude Desktop, Claude Code, Cursor, and other editors with MCP support.

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