MCP server for Japanese stock market data via J-Quants API — tools for price history, financials, screeners, and candlestick charts
Latest release v1.5.2 · 26 Oct 2026
3 files for Claude Code and GitHub Copilot: review, jquants-mcp copilot-instructions.md, jquants-mcp CLAUDE.md — 7,077 tokens loaded in every session.
.github/copilot-instructions.md A 2,822 tok CLAUDE.md A 4,255 tok .claude/commands/review.md A 8 tok These files are shigechika/jquants-mcp's own configuration — they tell Claude Code and GitHub Copilot how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.