OpenWebSearch is a free multi-engine web search MCP server that requires no API keys. It aggregates search results from multiple sources including Bing, Baidu, DuckDuckGo, Brave, and Exa, plus specialized developer platforms like GitHub, Juejin, and CSDN. Key features of OpenWebSearch: - Multi-engine web search without API keys or authentication - Support for major search engines: Bing, Baidu, DuckDuckGo, Brave, and Exa - Specialized search for developer content on GitHub, Juejin (Chinese tech community), and CSDN - Structured search results with titles, URLs, and descriptions - Full content fetching for CSDN articles and GitHub README files - HTTP proxy configuration for accessing restricted resources - Configurable default search engine and result count - CORS support for web-based integrations

Open-WebSearch MCP Server

[](https://www.modelscope.cn/mcp/servers/Aasee1/open-webSearch) [](https://archestra.ai/mcp-catalog/aas-ee__open-websearch) [](https://smithery.ai/server/@Aas-ee/open-websearch)

🇨🇳 中文 | 🇺🇸 English

A Model Context Protocol (MCP) server based on multi-engine search results, supporting free web search without API keys.

Features

TODO

Installation Guide

NPX Quick Start (Recommended)

The fastest way to get started:

# Basic usage
npx open-websearch@latest
With environment variables (Linux/macOS)
DEFAULT_SEARCH_ENGINE=duckduckgo ENABLE_CORS=true npx open-websearch@latest
Windows PowerShell
$env:DEFAULT_SEARCH_ENGINE="duckduckgo"; $env:ENABLE_CORS="true"; npx open-websearch@latest
Windows CMD
set MODE=stdio && set DEFAULT_SEARCH_ENGINE=duckduckgo && npx open-websearch@latest
Cross-platform (requires cross-env, Used for local development)
npm install -g open-websearch
npx cross-env DEFAULT_SEARCH_ENGINE=duckduckgo ENABLE_CORS=true open-websearch

Environment Variables:

| Variable | Default | Options | Description | |----------|-------------------------|---------|-------------| | ENABLE_CORS | false | true, false | Enable CORS | | CORS_ORIGIN | * | Any valid origin | CORS origin configuration | | DEFAULT_SEARCH_ENGINE | bing | bing, duckduckgo, exa, brave, baidu, csdn, juejin | Default search engine | | USE_PROXY | false | true, false | Enable HTTP proxy | | PROXY_URL | http://127.0.0.1:7890 | Any valid URL | Proxy server URL | | MODE | both | both, http, stdio | Server mode: both HTTP+STDIO, HTTP only, or STDIO only | | PORT | 3000 | 1-65535 | Server port | | ALLOWED_SEARCH_ENGINES | empty (all available) | Comma-separated engine names | Limit which search engines can be used; if the default engine is not in this list, the first allowed engine becomes the default | | MCP_TOOL_SEARCH_NAME | search | Valid MCP tool name | Custom name for the search tool | | MCP_TOOL_FETCH_LINUXDO_NAME | fetchLinuxDoArticle | Valid MCP tool name | Custom name for the Linux.do article fetch tool | | MCP_TOOL_FETCH_CSDN_NAME | fetchCsdnArticle | Valid MCP tool name | Custom name for the CSDN article fetch tool | | MCP_TOOL_FETCH_GITHUB_NAME | fetchGithubReadme | Valid MCP tool name | Custom name for the GitHub README fetch tool | | MCP_TOOL_FETCH_JUEJIN_NAME | fetchJuejinArticle | Valid MCP tool name | Custom name for the Juejin article fetch tool |

Common configurations:

# Enable proxy for restricted regions
USE_PROXY=true PROXY_URL=http://127.0.0.1:7890 npx open-websearch@latest
Full configuration
DEFAULT_SEARCH_ENGINE=duckduckgo ENABLE_CORS=true USE_PROXY=true PROXY_URL=http://127.0.0.1:7890 PORT=8080 npx open-websearch@latest

Local Installation

1. Clone or download this repository 2. Install dependencies:

npm install

npm run build

Cherry Studio:

{
  "mcpServers": {
    "web-search": {
      "name": "Web Search MCP",
      "type": "streamableHttp",
      "description": "Multi-engine web search with article fetching",
      "isActive": true,
      "baseUrl": "http://localhost:3000/mcp"
    }
  }
}

VSCode (Claude Dev Extension): ```json { "mcpServers": { "web-search": { "transport": { "type"