J-Quants MCP

About J-Quants MCP

Use J-Quants MCP with your agent

claude mcp add j-quants-mcp -- uvx jquants-mcp

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

Frequently asked questions

What is J-Quants MCP?

J-Quants MCP is an MCP (Model Context Protocol) server by shigechika in the Finance category. MCP server for retrieving Japanese stock market data via J-Quants API v2

How do I connect J-Quants MCP to Claude, Cursor, or another MCP client?

Install J-Quants MCP from its pypi package (jquants-mcp) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is J-Quants MCP open source?

Yes — the source code is public at github.com/shigechika/jquants-mcp, with 1 GitHub stars.

Can AI agents pay to use J-Quants MCP?

Not yet through Loomal — J-Quants MCP is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.