Fetter MCP
Real-time Python package and vulnerability data for AI coding agents.
我该使用它吗
质量与安全性
A
基于对工具定义和协议合规性的自动分析。
上下文开销
~503token 数（工具定义）
~1.5 KB典型响应大小
对注意力的影响极小（占 128k 上下文窗口的 0.39%）
这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。
安装
一键安装
将以下内容添加到你的 `claude_desktop_config.json` 文件中：
{
"mcpServers": {
"fetter-mcp": {
"url": "https://mcp.fetter.io/mcp"
}
}
}远程端点
https://mcp.fetter.io/mcpstreamable-http它能做什么
工具清单
工具（3）
🟢 只读🟡 写入🔴 删除⚪ 未知
🟢is_vulnerable(name)
Check if a specific package version has known vulnerabilities. Requires an exact version specifier (e.g., 'requests==2.31.0').
输入模式
{
"type": "object",
"properties": {
"name": {
"description": "The exact package name and version (e.g., \"requests==2.31.0\", \"numpy==1.24.0\").",
"type": "string"
}
},
"required": [
"name"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "IsVulnerableArgs"
}🟢lookup(cvss_filter, limit, name, retain_passing)
Look up a package by name and (optionally) version number to find which versions are available and/or have vulnerabilities.
输入模式
{
"type": "object",
"properties": {
"cvss_filter": {
"default": null,
"description": "CVSS score filter: \"all\" to show all vulnerabilities, \"max\" to show only the\nmaximum observed score, or a number (0.0-10.0) to filter by threshold",
"nullable": true,
"type": "string"
},
"limit": {
"description": "When the name is not an exact version, limit the number of recent versions to check.",
"format": "uint",
"minimum": 0,
"nullable": true,
"type": "integer"
},
"name": {
"description": "The package name to look up (e.g., \"requests\", \"numpy>=2.0\", \"flask==3.0.0\"). Note that when an exact \"==\" version is specified, the `limit` and `retain_passing` parameters have no effect.",
"type": "string"
},
"retain_passing": {
"description": "'When the name is not an exact version, setting this to True will return refernces for all packages, include those with no vulnerabilities (default: false)",
"nullable": true,
"type": "boolean"
}
},
"required": [
"name"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "LookupArgs"
}🟢most_recent_not_vulnerable(name)
Find the most recent version of a package that has no known vulnerabilities.
输入模式
{
"type": "object",
"properties": {
"name": {
"description": "The package name to look up (e.g., \"requests\", \"numpy\", \"flask\").",
"type": "string"
}
},
"required": [
"name"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "MostRecentNotVulnerableArgs"
}社区
证据
最近观测
已验证未记录版本3 个工具
已验证未记录版本3 个工具
已验证未记录版本3 个工具