Skip to main content

This page has been translated using TexTra by NICT. Please note that the translation may not be completely accurate.If you find any mistranslations, we appreciate your feedback on the "Request form for improving the automatic translation ".

Open Data 100

Last Updated:

To serve as a reference for local communities considering open data initiatives, we have published examples of open data use and activities (such as ongoing events and projects worth mentioning in various parts of Japan) by various businesses and local governments.
Examples and activities are available as needed.

Call for Open Data 100 Candidate Use and Application Examples and Activities

If you would like to register examples of use and activities in Open Data 100, please check the selection criteria and apply using the Open Data 100 application form below.

Open Data 100 Application Form

Items that must be included

  • Representative Name: Enter the name of the contact person.
  • Affiliation: Please list the person's affiliation.
  • Phone Number: Please provide a phone number where you can be reached.
  • Open data 100 Registration title: Enter the title to be registered.
  • Overview (within 100 double-byte characters): Describe examples of use and content of activities.
  • Applicable URL: Please include URLs that explain examples of use and activities.

Except when there is a request to disclose information pursuant to the provisions of the laws and ordinances Metropolitan Government, when there is illegal activity such as illegal access or intimidation, or when there are other special reasons, we will not use the collected information ourselves or provide it to third parties for purposes other than the purpose of using the open data 100 registry.

We will check the content received and register it to Open Data 100 if it meets the following selection criteria. We may contact you at the E-mail address you registered for confirmation.

Selection criteria

Examples of Utilization

  • It is a novel and practical case using open data.
  • It is not a temporary use case.
  • In principle, there is no similar Use case already registered.

Activities

  • It is a distinctive regional initiative aimed at the dissemination of open data.
  • Continuity.
  • The main users or participants are clear.
  • Activities are developed or can be developed in a wide area.

Total number of use cases: 90 (as of August 19, 2025)

You can see detailed materials for each case from the following pages.

*Documentation can also be downloaded in bulk from:

Bulk download

Open Data 100 (PDF / 18,813 kb) (as of August 19, 2025)