J-Quants - Pro-grade data for individual investors

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We've collected the most common inquiries

Data specifications

The documentation covers which data is available on your plan, how far back it goes, and what each field means.

→APIs available per plan and data retention periods(opens in a new tab)
→Data update schedule(opens in a new tab)
→Data correction history(opens in a new tab)
→Download sample data(opens in a new tab)Sign-up required (free)

Usage terms & pricing plans

The FAQs cover contracts, payments, and usage terms.

→Plans, Changes & Cancellation(opens in a new tab)
→Payment & Invoices(opens in a new tab)
→Usage & License(opens in a new tab)
→Account Management(opens in a new tab)
→Browse all FAQs(opens in a new tab)

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