MCP

概述

这是由 Jina AI 开发的一个功能强大的远程 MCP 服务器，提供了许多用于网页抓取、内容提取和 AI 驱动操作的工具。它包含19种不同的工具，分为搜索、并行操作、阅读、实用工具和重排序功能。服务器使用流式 HTTP 传输（MCP 规范2025-03-26）并支持 API 密钥认证以获得更高的速率限制。一个独特功能是它可以通过查询参数在向 MCP 客户端注册之前过滤工具，这有助于优化上下文窗口的使用，特别适合容量有限的 LLM。

试试问 AI

装完之后，这里有 5 个你可以让 AI 做的事：

• primer

  Get current contextual information for localized, time-aware responses

  试试:Get current context for my location试试:Update my contextual knowledge base
• read_url

  Extract clean, structured content from web pages as markdown

  试试:Read and summarize the content from this URL试试:Extract main points from https://example.com/article
• search_web

  Search the entire web for current information and news

  试试:Find recent news about artificial intelligence试试:Search for information about climate change solutions
• search_arxiv

  Search academic papers and preprints on arXiv repository

  试试:Find latest papers on quantum computing试试:Search for research on transformer architectures
• search_ssrn

  Search academic papers on SSRN (Social Science Research Network)

  试试:Find papers on economic policy试试:Search for research in behavioral economics
• search_images

  Search for images across the web similar to Google Images

  试试:Find images of space nebulae试试:Search for photos of ancient Roman architecture
• expand_query

  Expand and rewrite search queries based on query expansion model

  试试:Help me refine my search on machine learning ethics试试:Expand this query: renewable energy solutions
• parallel_search_web

  Run multiple web searches in parallel for comprehensive coverage

  试试:Search for information on climate change and renewable energy solutions simultaneously试试:Find recent developments in AI and quantum computing
• sort_by_relevance

  Rerank documents by relevance to a query

  试试:Rank these search results by relevance to 'machine learning ethics'试试:Sort these documents by relevance to my query
• classify_text

  Classify texts into user-defined labels

  试试:Classify these news articles as politics, sports, or technology试试:Categorize these customer reviews by sentiment
• deduplicate_strings

  Get top-k semantically unique strings from a collection

  试试:Find unique information from these search results试试:Remove duplicate content from these articles
• extract_pdf

  Extract figures, tables, and equations from PDF documents

  试试:Extract all tables from this research paper试试:Get figures and equations from the PDF at this URL

可对比工具

安装

{
  "mcpServers": {
    "jina-mcp-server": {
      "url": "https://mcp.jina.ai/v1",
      "headers": {
        "Authorization": "Bearer ${JINA_API_KEY}" // 可选
      }
    }
  }
}

{
  "mcpServers": {
    "jina-mcp-server": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.jina.ai/v1",
        "--header",
        "Authorization: Bearer ${JINA_API_KEY}"
      ]
    }
  }
}

claude mcp add -s user --transport http jina https://mcp.jina.ai/v1 \
  --header "Authorization: Bearer ${JINA_API_KEY}"

FAQ

如何限制注册的工具以节省上下文窗口空间？

使用端点 URL 上的查询参数，如 ?exclude_tags=parallel 或 ?include_tools=read_url,search_web，来过滤哪些工具会注册到 MCP 客户端。

为什么 Windows 上的 Claude Desktop 显示'服务器断开连接'？

这是已知的错误，args 中的空格没有正确转义。通过在 args 中设置 Authorization:${AUTH_HEADER}，在 env 变量中设置 AUTH_HEADER='Bearer <key>' 来解决。

MCP 对比