webfetch-mcp-server

webfetch-mcp-server

Overview

A Rust-based MCP server that provides a fetch tool for retrieving the content of a web page by URL via the MCP protocol.

Features

• Simple web page downloader

Getting Started / Usage

Create .devcontainer/devcontainer.json as follows:

devcontainer.json

This is a minimal devcontainer configuration required to use this repository as an MCP server.
Place the following file at .devcontainer/devcontainer.json in your project.

Note:
This is a sample configuration.
The cargo command is required for installation and is available in the specified devcontainer image.
This configuration allows you to quickly set up a development environment for the webfetch-mcp-server using Visual Studio Code and the Dev Containers extension.
After opening your project in VS Code, select Dev Containers: Reopen in Container from the Command Palette to start developing inside the container.

{
    "image": "mcr.microsoft.com/devcontainers/rust:1-bullseye",
    "postCreateCommand": "cargo install --git https://github.com/arapower/webfetch-mcp-server.git"
}

MCP Client Settings in VSCode

You can configure the MCP client in VSCode by creating .vscode/mcp.json.
Below are sample configurations for each type.

For type: "stdio"

{
  "servers": {
    "webfetch": {
      "type": "stdio",
      "command": "webfetch"
    }
  }
}

• webfetch runs as an MCP server using standard input/output.

For type: "http"

{
  "servers": {
    "webfetch-api": {
      "type": "http",
      "url": "http://host.docker.internal:8040/mcp"
    }
  }
}

• webfetch-api connects to the MCP server via HTTP at the specified URL.

Example Usage of the fetch Tool

From an MCP client, send a request like the following:

{
  "url": "https://example.com"
}

You will receive the content of the web page.

Build Errors

Depending on your build environment, you may encounter errors if the OpenSSL development package is missing.
This error occurs because the Rust dependency crate openssl-sys cannot find the OpenSSL development libraries (such as header files and .pc files) on your system.
You can resolve this by installing the OpenSSL development package using the following commands:

• Ubuntu/Debian:

  sudo apt-get update
  sudo apt-get install pkg-config libssl-dev
  

• Fedora/RHEL:

  sudo dnf install pkg-config openssl-devel
  

• Arch Linux:

  sudo pacman -S pkgconf openssl
  

Troubleshooting / FAQ

• Q: webfetch command not found
  A: Please run cargo install --git https://github.com/arapower/webfetch-mcp-server.git inside the Dev Container.

• Q: Cannot connect from MCP client
  A: Check if the command setting in mcp.json is correct and ensure the server is running.

License

MIT

Acknowledgments & References

• modelcontextprotocol/rust-sdk examples/servers