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J-Quants Free MCP server

@cygkichi

Repository

Basic information

Category

Other

License

MIT license

Transports

stdio

Author

cygkichi

About J-Quants Free MCP server

J-Quants APIの無償版で利用可能な機能のMCPサーバー

#jquants#mcp-server#api

J-Quants Free MCP server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "e-stat": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/jquants-free-mcp-server",
        "run",
        "server.py"
      ],
      "env": {
        "JQUANTS_ID_TOKEN": "YOUR_JQUANTS_ID_TOKEN"
      }
    }
  }
}

J-Quants Free MCP server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is J-Quants Free MCP server?

A Model Context Protocol server that provides access to the free version of the J-Quants API, enabling retrieval of Japanese stock data and financial statements.

How to use J-Quants Free MCP server?

Register at J-Quants API to obtain an ID token, then set the JQUANTS_ID_TOKEN environment variable. Configure your MCP client (e.g., Claude Desktop) with the server path and that environment variable.

Key features of J-Quants Free MCP server

  • search_company: Search listed companies by Japanese text.
  • get_daily_quotes: Fetch daily stock prices by company code.
  • get_financial_statements: Retrieve financial statements by company code.
  • No paid subscription required for the underlying API.

Use cases of J-Quants Free MCP server

  • Compare financial ratios (e.g., equity ratio) of multiple companies.
  • Obtain balance sheets and create charts from financial data.
  • Automate daily stock price lookups for a watchlist.
  • Integrate Japanese equity data into an AI assistant's analysis.

Frequently asked questions

1

What tools does the server provide?

Three tools: `search_company` (text search), `get_daily_quotes` (daily prices), and `get_financial_statements` (financial statements).

2

How do I obtain and set the required token?

Register at J-Quants API, get your ID token, and set it as the environment variable `JQUANTS_ID_TOKEN`.

3

Can I use the server without a J-Quants API registration?

No, registration and an active ID token are mandatory.

4

What license applies to this project?

The project is distributed under the MIT License; see the LICENSE file.

5

What runtime or dependencies are needed?

The server runs with Python (via `uv` or `uvx`) and expects the `JQUANTS_ID_TOKEN` environment variable to be set.

Comments

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