Effective Date: November 28, 2025
Welcome to BlockStar Cypher, a decentralized messaging platform operated by BlockStar LLC ("Company," "we," "us," or "our"). These Terms of Service ("Terms") govern your access to and use of the BlockStar Cypher application, website, and related services (collectively, the "Service").
📋 Please Read Carefully: By accessing or using BlockStar Cypher, you agree to be bound by these Terms. If you do not agree to these Terms, you may not access or use the Service.
We reserve the right to modify these Terms at any time. We will provide notice of significant changes by updating the "Effective Date" above. Your continued use of the Service after any changes constitutes acceptance of the modified Terms.
To use BlockStar Cypher, you must:
By using the Service, you represent and warrant that you meet all eligibility requirements.
BlockStar Cypher uses blockchain wallet authentication. We recommend using BlockStar Wallet for the best experience, but you may also use other compatible wallets such as MetaMask or WalletConnect. When you connect your wallet, you are responsible for maintaining the security of your wallet credentials, including private keys and seed phrases. We do not have access to your wallet credentials and cannot recover them if lost.
To use the messaging features of BlockStar Cypher, you must own a BlockStar @name NFT. This NFT serves as your unique username and identity within the platform. You are responsible for:
You are solely responsible for:
You agree to use BlockStar Cypher only for lawful purposes. You shall NOT:
⚠️ Warning: Violations of this Acceptable Use Policy may result in immediate termination of your access to the Service and may be reported to appropriate authorities.
BlockStar Cypher provides end-to-end encryption for messages. While we implement strong encryption:
For more information about how we handle your data, please review our Privacy Policy.
The Service, including its original content, features, and functionality, is owned by BlockStar LLC and is protected by international copyright, trademark, patent, trade secret, and other intellectual property laws. Our trademarks and trade dress may not be used without our prior written permission.
You retain ownership of any content you create and share through the Service. By using the Service, you grant us a limited license to transmit, store, and deliver your content as necessary to provide the Service. This license is:
If you believe content on our Service infringes your copyright, please contact us with a detailed notice including identification of the copyrighted work, the infringing material, and your contact information.
BlockStar Cypher integrates with third-party services including but not limited to:
Your use of third-party services is subject to their respective terms and policies. We are not responsible for the availability, accuracy, or content of third-party services.
While basic messaging on BlockStar Cypher may be free, you acknowledge that:
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED.
We disclaim all warranties including but not limited to:
Blockchain technology and cryptocurrency involve inherent risks. You acknowledge that:
TO THE MAXIMUM EXTENT PERMITTED BY LAW, BLOCKSTAR LLC AND ITS OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO:
IN NO EVENT SHALL OUR TOTAL LIABILITY EXCEED THE AMOUNT YOU PAID US (IF ANY) IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR ONE HUNDRED DOLLARS ($100), WHICHEVER IS GREATER.
You agree to defend, indemnify, and hold harmless BlockStar LLC and its officers, directors, employees, contractors, and agents from and against any claims, damages, obligations, losses, liabilities, costs, or expenses arising from:
We reserve the right to suspend or terminate your access to the Service at any time, with or without cause, and with or without notice. Grounds for termination include but are not limited to:
Upon termination, your right to use the Service will immediately cease. Provisions that by their nature should survive termination will survive, including ownership, disclaimers, indemnification, and limitations of liability.
Before filing a formal legal claim, you agree to contact us first and attempt to resolve any dispute informally. Most concerns can be quickly resolved this way.
If we cannot resolve a dispute informally, you and BlockStar LLC agree to resolve any dispute arising from these Terms or the Service through binding arbitration, rather than in court, except that either party may bring claims in small claims court if eligible.
YOU AND BLOCKSTAR LLC AGREE THAT EACH MAY BRING CLAIMS AGAINST THE OTHER ONLY IN YOUR OR ITS INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS OR REPRESENTATIVE PROCEEDING.
These Terms shall be governed by and construed in accordance with the laws of the State of Delaware, United States, without regard to its conflict of law provisions. Any legal action or proceeding arising under these Terms will be brought exclusively in the federal or state courts located in Delaware.
If you have any questions about these Terms of Service, please contact us: