wd_tagger_mcp

wd_tagger_mcp

A WD Tagger MCP server that generates image tags from base64 or URL inputs, returning general, character, rating tags and a prompt.

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README

wd_tagger_mcp

一个专用于 WD Tagger 反推图片标签的 MCP 服务。支持通过 base64/data URL 或 HTTP/HTTPS URL 提交图片。端口、模型路径和标签路径都在 config.toml 中配置,其中文件路径必须使用相对路径。

目录

.
  config.toml
  models/
    wd-eva02-large-tagger-v3/
      model.onnx
      selected_tags.csv
  wd_tagger_mcp/
    server.py
    tagger.py
    config.py

安装项目与依赖

建议在 Python 虚拟环境中安装和运行本项目。在项目根目录安装:

python -m pip install -e .

模型下载

默认配置使用 Hugging Face 上的 SmilingWolf/wd-eva02-large-tagger-v3。只需下载以下两个文件:

下载后按以下目录结构放置:

models/
  wd-eva02-large-tagger-v3/
    model.onnx
    selected_tags.csv

本服务通过 ONNX Runtime 载入 model.onnx,不需要下载仓库中的 model.safetensors 或 model.msgpack。如果将文件放在其他位置,请同步修改 config.toml 中的 model_path 和 tags_path;这两个配置项必须使用相对于 config.toml 的路径。

更换模型

本服务兼容 SmilingWolf 的以下官方模型。

v3:

v2:

切换模型时,下载对应仓库的 model.onnx 和 selected_tags.csv,放入独立目录,然后修改 config.toml:

[model]
model_path = "models/wd-convnext-tagger-v3/model.onnx"
tags_path = "models/wd-convnext-tagger-v3/selected_tags.csv"

每个模型都必须使用同一个仓库中与其配套的 selected_tags.csv,不能在 v2、v3 或不同模型之间混用模型和标签文件。服务会自动读取 ONNX 模型的输入尺寸,并在启动时校验输入布局、输出标签数与 CSV 是否匹配。修改配置后需要重启服务。

启动

在项目根目录启动 MCP 服务:

python -m wd_tagger_mcp.server --config config.toml

该命令会在当前终端中前台运行服务。当前 config.toml 使用 SSE transport,监听地址为:

0.0.0.0:48765

服务日志写入 config.toml 中 [logging].log_path 指定的文件,默认为:

logs/wd-tagger-mcp-server.log

要停止服务,在运行它的终端中按 Ctrl+C。

默认保留 Danbooru 标签中的下划线,例如 looking_at_viewer。如果需要输出更接近自然语言的 looking at viewer,可在 config.toml 中设置:

[tagging]
replace_underscore = true

工具

  • wd_tagger_tag_image_base64: 传入 base64 或 data URL,返回 prompt、general tags、character tags、rating tags。
  • wd_tagger_tag_image_url: 传入 HTTP/HTTPS 图片 URL,服务端下载图片后返回 prompt、general tags、character tags、rating tags。

示例参数:

{
  "image_base64": "data:image/png;base64,iVBORw0KGgo...",
  "general_threshold": 0.35,
  "character_threshold": 0.85,
  "include_rating": false
}
{
  "image_url": "https://example.com/image.png",
  "general_threshold": 0.35,
  "character_threshold": 0.85,
  "include_rating": false
}

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