Terms of Service

Last revised: November 2, 2026

About this translation

This is an English translation provided for reference. If there is any difference between this translation and the Japanese version, the Japanese version takes precedence.

When you use "Misskey.art" (the "Service"), an unofficial Misskey server on the decentralized microblogging social network, operated by Misskey.art Project (the "Administrators"), please follow the rules below and use it with good manners. If a violation is found, we may restrict the use of the Service or your account. These terms may be changed as needed. When we change them, we will announce the new content and the date it takes effect by posting them on this site. For major changes, we will also announce them in Misskey.art's announcements.

About This Server

This server is part of a decentralized microblogging social network made up of software such as Mastodon and Misskey.

This server uses Misskey.

Disclaimer

• The Service is a decentralized social network that uses a system called "ActivityPub", in which posts are sent to and copied by federated servers around the world the moment they are posted. Information you have posted may be difficult to delete completely.
• The Service is provided for users in Japan, and these terms and related documents are governed by the laws of Japan.
• The Privacy Policy is based on the Act on the Protection of Personal Information of Japan.
• Because the Service cannot meet the standards of the GDPR and the UK GDPR, we do not accept account registrations from EU member states or the United Kingdom.
• To protect the safety and privacy of children, use of the Service by anyone under 13 years old, and sending information that can identify an individual, such as a real name or a photo of the face, to the server by minors are prohibited.
• Except in cases of intent or gross negligence on the part of the Administrators, the Administrators are not responsible for trouble or disadvantages between users that occur on the Service.

Prohibited Actions

Actions that fall under the following items are subject to suspension and deletion of the account.

• Intentionally putting a load on the server
• Sending content that violates the law to the server
• Obtaining accounts for the purpose of buying and selling, or buying and selling accounts
• Creating an account with a disposable email address
• Advertising illegal websites, adult sites, etc.
• Leading others to unusual online shopping sites right after creating an account
• Writing company information in the profile right after creating an account, solely for the purpose of advertising or solicitation
• Posting media that contains NSFW elements without the settings ("Sensitive", "Hide content") required for its NSFW category
• Posting NSFW text (including text decoration with MFM and ASCII art) without setting "Hide content (CW)"
• Renoting NSFW posts that lack the required settings without setting "Hide content (CW)"
• Posting content that sexually depicts children (whether real or drawn, such as illustrations)
• Use of the Service by anyone under 13 years old
• Sending information that can identify an individual, such as a real name or a photo of the face, to the server by minors
• Advertising drugs and other substances regulated in Japan, or encouraging others to obtain or use them
  • Dealing with them in a creative work is fine if you make it clear that it is "fiction", as described in the Rules.
• Other actions that we consider inappropriate

Actions that fall under the following items are subject to silencing. While an account is silenced, "Public" cannot be selected as the visibility.

• Aggressive, malicious, or extreme statements
• Other actions that we consider inappropriate

Running Bots

Bot developers have an obligation to take measures for bots that fall under the following items. All bot administrators also need to check regularly what their bots are posting.

If the following measures are not taken and the bot is abused, we may suspend the bot account.

• Bots that automatically post images found by keywords using search engines, etc.
  • Filter out inappropriate images and set NSFW flags.
• Bots that have functions to reply or make public posts based on user actions
  • Set a rate limit so that the bot does not make a large number of posts.
  • Filter so that the bot does not react to inappropriate words.

Information We Collect

To operate the service, the Service collects the following information.

• Email address
• Reason for signing up (when sign-up approval is required)
• IP address
• Other information described in the Privacy Policy

We use the collected information only within the purposes set out in the Privacy Policy. The main purposes are as follows.

• To provide the Service, such as email notifications
• To review sign-up applications when sign-up approval is required
• To warn users who violate the Terms of Service or the Rules, and to suspend their accounts
• To improve the Service

We do not provide this information to third parties, except in the cases set out in the Privacy Policy, such as when required by law.
However, to the extent necessary to provide the Service, we may entrust the handling of this information to external services for DNS, file storage, sending email, etc. (such as Cloudflare and IDrive e2).

Deleting Your Account and Data

You can delete your account (leave the Service) and delete individual posts and files yourself, using the functions of the Service.

The Service is a decentralized social network that uses a system called ActivityPub, and information such as posts and profiles is automatically sent to and copied by federated servers. For this reason, even if you delete something on the Service, the deletion may not be reflected on federated servers, and the copied data may remain. We cannot guarantee the deletion of data that remains on external servers that the Administrators do not manage, and we are not responsible for it in any way.