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J-Quants MCP

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About this integration

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

Transport
stdio
Authentication
api-key
Initial setup
credentials
Runtime
unattended
Evidence
documented
Version
1.3.0
Package
jquants-mcp
Last compatibility test
Not independently tested

Connect your agent

jquants-mcp

Publisher documentation and manifest were reviewed from pinned captures. The package, J-Quants API, cache behavior, financial data, and deployment claims were not executed or independently verified. Output is reference data, not investment advice.

Capabilities: Retrieve Japanese equity and financial data, Retrieve index, derivatives, and market data, Cache and screen market data locally, Produce documented market, stock, and chart data summaries

Connected profiles

Additional details

Registry identifier

io.github.shigechika/jquants-mcp

Source ↗ · Checked 2026-09-17
Published version

1.3.0

Source ↗ · Checked 2026-09-17
Metadata license

CC0-1.0; package licenses are separate

Source ↗ · Checked 2026-09-17
Package ecosystem

pypi

Source ↗ · Checked 2026-09-17
Source artifact

jquants-mcp

Source ↗ · Checked 2026-09-19
Source manifest version

1.3.0

Source ↗ · Checked 2026-09-19
Unattended configuration

The publisher documents a stdio-only server spawned by the local MCP client, with gateway-spawned per-session subprocesses for remote deployment. No runtime was executed in this review.

Source ↗ · Checked 2026-09-19
Authentication and prerequisites

J-Quants data access requires a provider API key, loaded from the official config, the server config, or JQUANTS_API_KEY. Optional browser login writes the key locally; remote gateway authentication is a separate deployment concern.

Source ↗ · Checked 2026-09-19
Connection configuration

Local clients launch the jquants-mcp console script over stdio. The server binds no network socket; documented remote access requires a separate authenticated gateway.

Source ↗ · Checked 2026-09-19
Review scope

Publisher documentation reviewed; package and integration endpoint not executed or independently security-audited.

Source ↗ · Checked 2026-09-19