JijZept Solver Terms of Use

Please read these terms and conditions carefully before using JijZept Solver.

1. Interpretation and Definitions

The words in which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in the singular or in the plural.

For these Terms and Conditions:

(a) "JijZept Solver" means a mathematical optimization solver provided by Jij Inc., including its web API and client software for accessing it. This term also includes sample programs provided by Us.
(b) Company (referred to as either "the Company", "We", "Us" or "Our" in this Agreement) refers to Jij Inc., #403, CIC, 3-3-6 Shibaura, Minato-ku, Tokyo, 108-0023, JAPAN.
(c) "Access Information" means the API hostname and access token issued for using JijZept Solver.

2. Acknowledgment

These are the Terms and Conditions governing the use of JijZept Solver and the agreement that operates between the User and the Company.
These Terms and Conditions set out the rights and obligations of all users regarding the use of JijZept Solver.

Your use of JijZept Solver is conditioned on Your acceptance of and compliance with these Terms and Conditions. These Terms and Conditions apply to all users who use JijZept Solver.

3. Copyright

(a) All intellectual property rights, including copyrights (the rights outlined in Articles 27 and 28 of the Copyright Act of Japan), trademarks, patents, etc., related to JijZept Solver belong to the Company or third parties who have granted licenses to us and are not transferred to you by agreeing to these Terms of Use.
(b) This license does not entitle you to receive provision or disclosure of source code for any part of JijZept Solver. However, this does not apply to sample programs, OSS, etc., that we voluntarily release to the public or that we are required to release based on a license from third parties.

4. JijZept Solver Service Agreement

You must enter into a separate JijZept Solver service agreement to access JijZept Solver.

5. Prohibitions

(a) Analyzing the structure, functions of JijZept Solver by reverse engineering, decompiling, disassembling, or other means or to obtain its source code.
(b) Duplicating or adapting all or part of the client software contained in the Software without the Company's prior consent.
(c) Publishing a copy of JijZept Solver on a computer network that can be accessible by a third party.
(d) Disclosing access information to a third party or publishing them.
(e) Other use beyond the scope permitted by these Terms of Use.

6. Limitation of liability

(a) The Company does not guarantee the accuracy, effectiveness, or optimality of the calculation results of JijZept Solver.
(b) The Company shall not be liable for any failure of the Software to operate when the User uses or uses the Software for the User's customer by incorporating or linking it with the User-provided Software.
(c) The User shall be responsible for confirming and examining the suitability of the relevant foreign laws and regulations applicable to the use of the Software. The Company shall not be liable for any legal liabilities related to the appropriate foreign laws and regulations.

Enacted 13 June 2025.
