MCP Eastmoney vs MCP Polygon)

In-depth architectural comparison of the MCP Eastmoney and MCP Polygon) 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 MCP Eastmoney when:

• You need dedicated capabilities in the Finance & Fintech domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Delayed A-share market quotes, Stock search by keyword, pinyin, or code, Main capital inflow rankings.

Explore MCP Eastmoney Details

Choose MCP Polygon) when:

• You need dedicated capabilities in the Finance & Fintech domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
• You have access to required keys: MASSIVE_API_KEY.
• Primary tools included: search_endpoints, call_api, query_data.

Feature & Specification Comparison

Specification	MCP Eastmoney 27dream Finance & Fintech	MCP Polygon) polygon-io Finance & Fintech
Summary	China A-share stock market MCP server — real-time quotes, main capital flow ranking, sector fund flow, and historical K-lines via Eastmoney's free APIs. Zero config, no API keys required. 5 tools: getstockquote, searchstock, mainfundrank, sectorfundflow, getkline. Install: uvx mcp-eastmoney or pip install mcp-eastmoney.	) 🐍 ☁️ - An MCP server that provides access to Polygon.io financial market data APIs for stocks, indices, forex, options, and more.
Category & Scope

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": {
    "27dream-mcp-eastmoney": {
      "command": "uvx",
      "args": [
        "mcp-eastmoney"
      ]
    }
  }
}

{
  "mcpServers": {
    "polygon-io-mcp-polygon-": {
      "command": "npx",
      "args": [
        "-y",
        "polygon-io-mcp-polygon-"
      ],
      "env": {
        "MASSIVE_API_KEY": "YOUR_MASSIVE_API_KEY_HERE"
      }
    }
  }
}

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