J Quants MCP vs Pykrx MCP

In-depth architectural comparison of the J Quants MCP and Pykrx 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 J Quants MCP when:

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

Explore J Quants MCP Details

Choose Pykrx MCP when:

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

Explore Pykrx MCP Details

Feature & Specification Comparison

Specification	J Quants MCP Developer Tools	Pykrx MCP Developer Tools
Summary	MCP server for retrieving Japanese stock market data via J-Quants API v2	Korean stock market data (KOSPI/KOSDAQ) with ETF tracking and fundamental analysis
Category & Scope	Developer Tools	Developer Tools
Quality signal

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": {
    "j-quants-mcp": {
      "command": "uvx",
      "args": [
        "jquants-mcp"
      ]
    }
  }
}

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

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