Open-WebSearch MCP Server is a multi-engine web search aggregator that enables free web searching without requiring API keys. It provides structured search results by querying multiple popular search engines simultaneously. Key features: - Multi-engine search support including Bing, Baidu, DuckDuckGo, Brave, Exa, Juejin, and CSDN - No API keys or authentication required for any supported search engine - HTTP proxy configuration for accessing restricted resources - Configurable default search engine and number of results per query - Content fetching capabilities for specific platforms including CSDN articles, GitHub README files, and generic HTTP/Markdown web pages - Returns structured results with titles, URLs, and descriptions for easy parsing

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 | | SEARCH_MODE | request | request, auto, playwright | Search strategy. Currently only affects Bing: request only, request then Playwright fallback, or force Playwright | | PLAYWRIGHT_PACKAGE | auto | auto, playwright, playwright-core | Which Playwright client package to resolve when browser mode is enabled | | PLAYWRIGHT_MODULE_PATH | empty | Absolute path or project-relative path | Reuse an existing Playwright client package outside this project | | PLAYWRIGHT_EXECUTABLE_PATH | empty | Any valid browser binary path | Launch an existing Chromium/Chrome executable without installing bundled browsers | | PLAYWRIGHT_WS_ENDPOINT | empty | Valid Playwright ws:// / wss:// endpoint | Connect to an existing remote Playwright browser server | | PLAYWRIGHT_CDP_ENDPOINT | empty | Valid Chromium CDP endpoint | Connect to an existing Chromium instance over CDP | | PLAYWRIGHT_HEADLESS | true | true, false | Whether Playwright Chromium runs in headless mode | | PLAYWRIGHT_NAVIGATION_TIMEOUT_MS | 20000 | Positive integer | Timeout for Playwright navigation and Bing result waits | | 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 t