Terms of Service

Last updated: February 26, 2026

These Terms of Service ("Terms") govern your access to and use of Chessy (the "Service"), provided by Altmatter LLC ("we," "us," or "our"). By using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.

1. Use of the Service

Chessy is a free chess game accessible within ChatGPT via the Model Context Protocol (MCP). No account or registration is required to use the Service.

You may use the Service only for lawful purposes and in accordance with these Terms. You agree not to:

2. Intellectual Property

The Service, including its design, code, graphics, and content, is owned by Altmatter LLC and is protected by applicable intellectual property laws. You are granted a limited, non-exclusive, non-transferable license to use the Service for personal, non-commercial purposes.

You may not reproduce, distribute, modify, or create derivative works based on the Service without our prior written consent.

3. Third-Party Platforms

Chessy is designed to operate within ChatGPT, a platform operated by OpenAI. Your use of ChatGPT is subject to OpenAI's own Terms of Service and policies, which are separate from and independent of these Terms. We are not responsible for ChatGPT's availability, functionality, or any changes OpenAI makes to its platform.

4. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. TO THE FULLEST EXTENT PERMITTED BY LAW, ALTMATTER LLC DISCLAIMS ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

We do not warrant that the Service will be uninterrupted, error-free, or free of harmful components. Game sessions may be lost or interrupted due to technical issues beyond our control.

5. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ALTMATTER LLC AND ITS OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING OUT OF OR RELATED TO YOUR USE OF THE SERVICE, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

OUR TOTAL LIABILITY TO YOU FOR ANY CLAIMS ARISING OUT OF OR RELATED TO THESE TERMS OR THE SERVICE SHALL NOT EXCEED $10 USD.

6. Indemnification

You agree to indemnify, defend, and hold harmless Altmatter LLC and its affiliates, officers, directors, employees, and agents from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or related to your use of the Service or your violation of these Terms.

7. Availability and Modifications

We reserve the right to modify, suspend, or discontinue the Service at any time, with or without notice. We may also update these Terms from time to time. Continued use of the Service after any changes constitutes your acceptance of the updated Terms. We will update the "Last updated" date at the top of this page when changes are made.

8. Children

The Service is not directed to children under the age of 13. By using the Service, you represent that you are at least 13 years of age. If you are under 18, you represent that you have your parent or guardian's permission to use the Service.

9. Governing Law

These Terms are governed by and construed in accordance with the laws of the State of Delaware, United States, without regard to its conflict of law principles. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the courts located in Delaware.

10. Severability

If any provision of these Terms is found to be unenforceable or invalid, that provision will be limited or eliminated to the minimum extent necessary, and the remaining provisions will remain in full force and effect.

11. Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Altmatter LLC regarding your use of the Service and supersede any prior agreements.

12. Contact Us

If you have questions about these Terms, please contact us:

Altmatter LLC
contact@altmatter.com