Open WebSearch vs One Search MCP

In-depth architectural comparison of the Open WebSearch and One Search MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Open WebSearch when:

• You need dedicated capabilities in the Search & Data Extraction domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Multi-engine web search without API keys, Structured titles, URLs, and descriptions, Web, Markdown, GitHub README, and CSDN fetching.

Explore Open WebSearch Details

O

Choose One Search MCP when:

• You need dedicated capabilities in the Search & Data Extraction domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore One Search MCP Details

Feature & Specification Comparison

Specification	Open WebSearch Aas-ee Search & Data Extraction	O One Search MCP Search & Data Extraction
Summary	Web search using free multi-engine search (NO API KEYS REQUIRED) — Supports Bing, Baidu, DuckDuckGo, Brave, Exa, and CSDN.	Web search, crawl, scrape & extract with agent-browser, SearXNG, Tavily, DuckDuckGo, Bing & more
Category & Scope	Search & Data Extraction

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "aas-ee-open-websearch": {
      "command": "npx",
      "args": [
        "-y",
        "open-websearch@latest"
      ]
    }
  }
}

{
  "mcpServers": {
    "one-search-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "agent-browser"
      ]
    }
  }
}

Related MCP Server Comparisons