depu-img-mcp
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@depu-img-mcpdescribe this image: https://example.com/cat.png"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
depu-img-mcp
图像理解 MCP 服务器 —— 让不支持图像的文本模型通过 MCP 把图片 + prompt 转发给视觉模型,返回描述文本。自身不做推理,是协议适配与转发层。
特性
MCP v2(
MCPServer+ Streamable HTTP,2026-07-28 规范),同时支持 stdio / SSEDocker 部署(多阶段构建 + docker-compose)
多后端 provider:任意 OpenAI 兼容端点(LiteLLM 网关 / vLLM / OpenAI / DashScope / 智谱 / OpenRouter / Ollama …)
双层 prompt 注入:全局
base_vision_prompt+ per-callprompt+task_type路由(auto/general/ocr/ui/debug/describe)安全:magic byte 校验、大小限制、SSRF 防护、路径白名单
轻量 Web 后台(
/admin):查看配置 + 在线测试图片配置双源:环境变量覆盖
config.toml,密钥支持${ENV}插值
Related MCP server: vision-bridge-mcp
快速开始
# 1. 准备 .env(至少填 ADMIN_TOKEN 和视觉后端 API key)
cp .env.example .env
# 编辑 .env 填入 API key
# 2. Docker 启动(首次会自动生成 ./conf/config.toml 默认配置)
docker compose up -d
# 3. 访问后台改配置(或直接编辑 ./conf/config.toml 后重启)
open http://localhost:8080/admin
# MCP 端点:http://localhost:8080/mcp首次启动无需预先准备
config.toml:容器挂载./conf/目录,若里面没有配置文件,会自动从内置模板生成一份。之后可在/admin后台在线编辑,或直接改./conf/config.toml后docker compose restart。
本地运行(开发)
uv sync
uv run python -m depu_img_mcp # 默认 streamable-http
MCP_TRANSPORT=stdio uv run python -m depu_img_mcp # stdio 模式给 Claude Desktop 等MCP 工具
image_understand
image_understand(
image: str, # http(s) URL 或 data:image/...;base64,... URI(内联 base64)。不支持本地文件路径(Docker 部署,容器看不到客户端文件系统)
prompt: str = "", # 用户问题;空则给出通用描述(物体、文字/OCR、布局、颜色等)
) -> strprovider / model 由后台 admin 统一配置,客户端不能指定。这用于企业内网服务,后端路由由运维通过
/admin后台决定。
只有一个工具。客户端传图 + prompt,服务器用后台配置的默认 provider 及其 model 进行视觉理解,返回文本描述。
配置示例
[[providers]]
name = "default"
type = "openai-compat"
base_url = "https://gateway.ai.depu.school/v1"
api_key = "${DEPU_GATEWAY_API_KEY}"
model = "Kimi-K2.7-Code"
auth_header = "bearer"客户端配置(Claude Desktop 示例)
stdio 模式:
{
"mcpServers": {
"depu-img": {
"command": "python",
"args": ["-m", "depu_img_mcp"],
"env": { "MCP_TRANSPORT": "stdio", "DEPU_GATEWAY_API_KEY": "sk-..." }
}
}
}HTTP 模式(支持远程 MCP 的客户端):
{
"mcpServers": {
"depu-img": { "url": "http://localhost:8080/mcp" }
}
}License
MIT
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