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Crawl4 MCP Server

@ShiDuLin

Basic information

Category

Other

Transports

stdio

Author

ShiDuLin

About Crawl4 MCP Server

本项目是一个crawl4ai 的爬虫MCP SERVER,提供高级网络爬虫。使用此 MCP SERVER,您可以抓取任何内容,将内容保存为本地markdown文件,然后在任何地方将该知识用于 RAG。

Crawl4 MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "crawl4-mcp": {
      "command": "uv",
      "args": [
        "venv",
        "-p",
        "3.12"
      ]
    }
  }
}

Crawl4 MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is crawl4-mcp?

crawl4-mcp is an MCP server built on crawl4ai that provides advanced web crawling capabilities. It allows users to crawl any web content, save it as local markdown files, and use that knowledge anywhere for RAG (Retrieval-Augmented Generation).

How to use crawl4-mcp?

Install by cloning the repository, creating a Python 3.12 virtual environment with uv, running uv sync and crawl4ai-setup, then creating a .env file. Start the server with uv run src/crawl4ai_mcp.py. The server listens on the configured host and port via SSE transport. Integrate with any MCP client using transport: sse and url: http://localhost:8051/sse.

Key features of crawl4-mcp

  • Crawls any web content with advanced crawl4ai engine
  • Saves content as local markdown files
  • Output ready for RAG (Retrieval-Augmented Generation)
  • SSE-based MCP server integration
  • Simple Python 3.12+ setup with uv

Use cases of crawl4-mcp

  • Building a local knowledge base from web pages for RAG pipelines
  • Archiving website content as markdown for offline reference
  • Feeding crawled data into AI assistants or document retrieval systems

Frequently asked questions

1

What are the environment requirements?

Python 3.12 or higher and the uv package manager are required.

2

How do I install crawl4-mcp?

Clone the repository, create a Python 3.12 virtual environment with uv, run `uv sync` and `crawl4ai-setup`, then create a `.env` file.

3

How do I run the server?

Execute `uv run src/crawl4ai_mcp.py` in the activated virtual environment.

4

How do I integrate crawl4-mcp with an MCP client?

Configure the client with transport type `sse` and the URL `http://localhost:8051/sse` (adjust host/port as needed).

5

What happens to the crawled data?

The content is saved as local markdown files, ready to be used for RAG or other applications.

Comments

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