> For the complete documentation index, see [llms.txt](https://kayen-protocol.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kayen-protocol.gitbook.io/documentation/references/terms-of-use.md).
# Terms of Use
## Modifications to Terms
We reserve the right, in our sole discretion, to modify these Terms from time to time. If we make changes, we will notify you of such modifications by providing notice through the Services or updating the "Last Updated" date at the top of these Terms. Unless otherwise specified in our notice, all modifications are effective immediately upon posting, and your continued use of the Site and Services following such notification constitutes acceptance of the modified Terms. If you do not agree to the modified Terms, you must discontinue use of the Site and Services.
## **Geographic Restrictions**
By proceeding with any activity on the KAYEN platform or purchasing $KAYEN tokens, you confirm that you are not located in or a resident of any of the following countries or regions subject to comprehensive sanctions:
* United States Sanctions: Cuba, Iran, North Korea, Syria, Crimea, Donetsk, and Luhansk regions of Ukraine.
* European Union Sanctions: Afghanistan, Belarus, Central African Republic, Democratic Republic of the Congo, Guinea, Guinea-Bissau, Iraq, Lebanon, Libya, Mali, Myanmar (Burma), Nicaragua, Russia, Somalia, South Sudan, Sudan, Venezuela, Yemen, Zimbabwe.
You do not, and will not, use VPN software or any other privacy or anonymization tools or techniques to circumvent, or attempt to circumvent, any restrictions that apply to the
## **Know Your Customer (KYC) Requirements**
If your purchase exceeds $1,000 USD, you must complete a verification process in compliance with applicable regulations. This process requires the submission of your Know Your Customer (KYC) information via the following form:
All submitted information will be processed securely and in compliance with relevant data protection laws.
Non-Compliance\
Failure to meet these requirements may result in denial of service or restriction of activities on the Kayen Protocol platform. We reserve the right to enforce these criteria as necessary.
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