News Release

May 18, 2026 JPXI Enhancement of J-Quants API Data Service: Launch of TDnet Document Add-on

JPX Market Innovation & Research, Inc. (“JPXI”) announces that it has introduced a new add-on dataset providing timely disclosure documents (TDnet) to its retail-oriented service, J-Quants API, as of May 18, 2026.

With this enhancement, users subscribed to the add-on plan can now access timely disclosure documents (TDnet) via API. In addition to intraday delivery of the latest disclosures, users can also access up to five years of historical data under a fixed monthly fee.

The dataset is available both via API and as bulk downloads in CSV format, enabling flexible data usage depending on user needs.

This add-on is available to subscribers of the Light plan or higher. The monthly fee is JPY 11,000 (tax included).
This add-on is intended for individual investors only and may not be used for corporate or academic purposes.

This enhancement enables timely access to disclosure information and supports a wide range of analytical use cases, including investment decision-making by individual investors.

JPXI will continue to enhance and expand J-Quants API in order to support market analysis and learning activities by individual investors.

For further details and the latest information, please visit the J-Quants official website: