Open WebSearch vs UpAPI

In-depth architectural comparison of the Open WebSearch and UpAPI 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).
• You have access to required keys: USE_PROXY, PROXY_URL.
• Primary tools included: Multi-engine web search: Bing, Baidu, DuckDuckGo, Brave, Exa, CSDN, and others, No API keys or authentication required, Structured search results with titles, URLs, and descriptions.

Explore Open WebSearch Details

U

Choose UpAPI 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: search_ops, call_op.

Feature & Specification Comparison

Specification	Open WebSearch Aas-ee Search & Data Extraction	U UpAPI Search & Data Extraction
Summary	Web search using free multi-engine search (NO API KEYS REQUIRED) — Supports Bing, Baidu, DuckDuckGo, Brave, Exa, and CSDN.	All public upAPI operations as MCP tools: web scraping, search, screenshots, PDF, OCR and 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",
        "skills"
      ],
      "env": {
        "USE_PROXY": "YOUR_USE_PROXY_HERE",
        "PROXY_URL": "YOUR_PROXY_URL_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "upapi": {
      "command": "npx",
      "args": [
        "-y",
        "@upapi/mcp"
      ]
    }
  }
}

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