What is the key difference between MCP Polygon) and MCP Eastmoney?

MCP Polygon) belongs to the Finance & Fintech category with local stdio execution, while MCP Eastmoney belongs to the Finance & Fintech category with local stdio execution.

How do I install MCP Polygon) or MCP Eastmoney in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are MCP Polygon) and MCP Eastmoney free or paid?

MCP Polygon) operates under a BYOK (Pay Provider Direct) model (API Key required). MCP Eastmoney operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

MCP Polygon) lists 3 tools with 3 views and 389 GitHub stars. MCP Eastmoney lists 6 tools with 14 views and 12 GitHub stars.

Can I use both MCP Polygon) and MCP Eastmoney together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

MCP Polygon) vs MCP Eastmoney

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

At a Glance & Executive Verdict

MCP Polygon)

Finance & Fintech · Local stdio

Quality: 51/100 (Good) | Auth: API Key required

MCP Eastmoney

Finance & Fintech · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Verdict Summary: Choose MCP Polygon) if you need specialized Finance & Fintech tools running via a local process. Choose MCP Eastmoney if your workspace requires Finance & Fintech integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

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.

Explore MCP Polygon) Details

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.

Feature & Specification Comparison

Specification	MCP Polygon) polygon-io Finance & Fintech	MCP Eastmoney 27dream Finance & Fintech
Summary	) 🐍 ☁️ - An MCP server that provides access to Polygon.io financial market data APIs for stocks, indices, forex, options, and more.	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.
Category & Scope

Tools & Capabilities Breakdown

MCP Polygon) Tools (3)

search_endpoints

Search for API endpoints and built-in functions by natural language query. Returns titles, path patterns, and descriptions. Set `detail` to `"more"` for query parameter docs, or `"verbose"` for full documentation. Use `max_results` to limit results.

call_api

Call any Massive.com REST API endpoint. Supports storing results as an in-memory database table (`store_as`) and applying post-processing functions (`apply`). Paginated responses include a next-page hint.

query_data

Run SQL against stored SQLite DB. Supports `SHOW TABLES`, `DESCRIBE <table>`, `DROP TABLE <table>`, CTEs, window functions, and more. Results can also be post-processed with `apply`.

MCP Eastmoney Tools (6)

Delayed A-share market quotes

Stock search by keyword, pinyin, or code

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).

MCP Polygon) Configuration

mcpServers (Claude Desktop / Cursor)

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

MCP Eastmoney Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

MCP Polygon) is categorized under Finance & Fintech and uses a local stdio subprocess. In contrast, MCP Eastmoney belongs to Finance & Fintech using local stdio subprocess. Select MCP Polygon) when you need capabilities focused on finance & fintech and MCP Eastmoney when you require tools for finance & fintech.

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