J-Quants MCP

io.github.shigechikav1.3.0Updated Sep 23, 2026

MCP server for retrieving Japanese stock market data via J-Quants API v2

VerifiedSTDIODesktop onlyCloud & InfrastructureDeveloper ToolsData & Analytics

Installation

In SourceWeft

  1. Open J-Quants MCP in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

Tools

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Version history

1
  1. v1.3.0LatestSep 16, 2026