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mcp-search-auto-lbc

by npalissi
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TypeScript
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MCP Search Auto LBC

这是一个 MCP 服务器，通过可比较的 Leboncoin 列表来估算二手车市场价值。它会向模型提供每个保留列表的标题、描述、原始属性、图片、价格和 URL，以及其他列表被排除的原因。

端点

  • 本地 MCP 端点：http://127.0.0.1:3100/mcp

  • 健康检查：http://127.0.0.1:3100/health

  • 建议的生产环境端点：https://mcp.your-domain.com/mcp

该服务器使用 MCP Streamable HTTP 传输。POST /mcp 接受 MCP JSON-RPC 消息。GET /mcp 和 DELETE /mcp 会特意返回 HTTP 405，因为服务器在无会话状态下运行。

Related MCP server: immo-mcp

安装

要求：Node.js 20 或更高版本，以及 Python 3.11。所有 Leboncoin 网络流量都经由一个由 lbc 支撑的常驻 Python 工作进程处理；TypeScript 进程只负责暴露 MCP 并计算估值。

npm install
python3.11 -m venv .venv
.venv/bin/python -m pip install -r requirements.txt
npm start

随后，服务器暴露 http://127.0.0.1:3100/mcp。

在 Windows 上，请使用 .venv\Scripts\python.exe -m pip install -r requirements.txt 安装 Python 依赖。

命令

npm start
npm run dev
npm test
npm run typecheck

可用的环境变量：

  • MCP_HOST：默认为 127.0.0.1

  • MCP_PORT：默认为 3100

  • MCP_API_TOKEN：当服务器在 localhost 之外监听时必需的 Bearer 令牌

  • MCP_ALLOWED_HOSTS：允许的主机名列表，以逗号分隔

  • LBC_PYTHON_PATH：指向带有 lbc>=1.1.5 的 Python 可执行文件的显式路径

  • LBC_MAX_PAGES：每次搜索获取的最大页数；默认为 3

  • LBC_PAGE_DELAY_MS：页面之间的基本延迟；默认为 1500 毫秒，并包含随机抖动

  • LBC_MAX_RETRIES：Python 客户端内部的 Datadome 重试次数；默认为 1

  • LBC_REQUEST_TIMEOUT_SECONDS：每个 Python HTTP 请求的超时时间；默认为 30

  • LBC_WORKER_TIMEOUT_MS：一次完整工作进程搜索的最大持续时间；默认为 90000

  • LBC_PROXY_URL：可选代理 URL，在需要时包含凭据

  • LBC_IMPERSONATE：受 curl_cffi 支持的可选浏览器配置文件

  • VALUATION_CACHE_TTL_MS：内存缓存的生存时间；默认为 15 分钟

工具：resolve_leboncoin_vehicle

此工具将自然语言形式的车辆名称转换为准确的 Leboncoin 筛选器 ID。它首先检查本地目录，然后可以从一页实时列表中确认未知车型。

示例输入：

{
  "brand": "Renault",
  "model": "Clio III",
  "fuel": "diesel",
  "engine": "1.5 dCi 90"
}

示例输出：

{
  "resolved": true,
  "brand": "Renault",
  "model": "Clio",
  "leboncoinBrand": "RENAULT",
  "leboncoinModel": "RENAULT_Clio",
  "generation": "3",
  "fuel": "diesel",
  "leboncoinFuel": "2",
  "confidenceScore": 98,
  "source": "catalog",
  "warnings": [],
  "alternatives": []
}

工具：estimate_used_vehicle

示例输入：

{
  "brand": "Renault",
  "model": "Clio",
  "leboncoinBrand": "RENAULT",
  "leboncoinModel": "RENAULT_Clio",
  "generation": "3",
  "year": 2010,
  "mileage": 100000,
  "fuel": "diesel",
  "engine": "1.5 dCi 90",
  "gearbox": "manual",
  "trim": "Dynamique",
  "excludeCompanyVehicles": true,
  "excludeProfessionalSellers": true,
  "maxComparables": 20,
  "includeDescriptions": true,
  "includeImages": true
}

Leboncoin 的精确筛选器 ID 与显示给用户的标签不同：

  • u_car_brand：RENAULT、PEUGEOT、BMW、MERCEDES-BENZ 等

  • u_car_model：品牌 ID、下划线以及区分大小写的车型标签，例如 RENAULT_Clio、PEUGEOT_208、VOLKSWAGEN_Golf 或 TESLA_Model 3

  • 代际（Clio 3）和发动机（1.5 dCi 90）不属于 u_car_model；它们会与制造商版本、标题、属性和描述进行核对。

  • 主要燃料代码中，1 代表汽油，2 代表柴油，4 代表电动，6 代表混合动力，8 代表插电式混合动力。变速箱代码中，1 代表手动，2 代表自动。

当省略 leboncoinBrand 或 leboncoinModel 时，服务器会保留文本搜索作为后备方案。

精简输出示例：

{
  "request": {},
  "valuation": {
    "estimatedPrice": 5000,
    "lowPrice": 4600,
    "highPrice": 5400,
    "quickSalePrice": 4500,
    "currency": "EUR",
    "confidence": "high",
    "confidenceScore": 82
  },
  "market": {
    "adsFetched": 25,
    "comparablesUsed": 14,
    "excludedCount": 11
  },
  "comparables": [
    {
      "title": "Renault Clio III 1.5 dCi 90",
      "price": 5100,
      "description": "Full listing description...",
      "characteristics": {
        "regdate": "2010",
        "mileage": "103000",
        "fuel": "Diesel"
      },
      "images": ["https://..."],
      "url": "https://www.leboncoin.fr/...",
      "similarityScore": 0.92,
      "matchedCriteria": ["brand", "model", "year", "mileage", "fuel", "engine"]
    }
  ],
  "excludedAds": [
    {
      "title": "Damaged Clio sold for parts",
      "reasons": ["damaged, non-running, or parts-only vehicle"]
    }
  ],
  "warnings": []
}

未来的目录数据应当遵循 catalog.example.json 的结构。服务器还会将此结构作为 MCP 资源发布到 vehicle://catalog/schema。

连接 MCP 客户端

服务器使用 Streamable HTTP。典型的客户端配置如下：

{
  "mcpServers": {
    "mcp-search-auto-lbc": {
      "url": "http://127.0.0.1:3100/mcp"
    }
  }
}

开箱即用的智能体技能位于 skills/leboncoin-vehicle-valuation。

免责声明

本项目使用非官方 API，与 Leboncoin 既无关联，也未获得其认可。估值是基于广告上标价得出的估算结果，并非对车辆的保证性评估。

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