Terms of Service

The Moc3D marketplace is trying in good faith to review many of the uploaded MOCs and MOC related content. As a vendor and user you abide to follow the following rules in order to use the services offered by the marketplace. Failure to do so may result in you account being removed or permanently banned. Administrators may remove any content that is in violation of these terms. If you belive certain content is violating any of the terms we suggest you can contact us and report it.

User roles

Moc3D is a marketplace platform for sharing and selling MOCs. On the marketplace users could have one or more of the following roles:

  • vendors – individuals or business entities that create, upload and sell content in the form of MOCs, MOCs renders, videos, text, images and other.
  • users – individuals or business entities that buy and consume MOCs and MOC releated content.
  • admininistrator/moderator – have additional priviliges to audit and modify upload content.

Ownership of Content

You must upload only content that you have the right to upload. Look at the licence of the content. It might be a Creative Commons. It might have all the rights reserved by the content owner. Receive a written permission from the author if you are not sure what’s the license of the content.

Vendors preserve the ownership of content uploaded to Moc3D (considering it is their original content). Moc3D may choose to use MOCs, images, renders, videos, text and descriptions and other MOC related content in it’s marketing activites. MOCs and content that form an important role in maintaining the platform and its functions become property of Moc3D. These content cannot be removed by the vendor without request to Moc3D platform. This request may be denied. See “MOC Publication. Request for removal”

Work based on other MOCs

You might base your work on another MOC created by another vendor on the platform or another author in general. If the MOC is heavily influenced by another design you should credit the original author in your MOC description. Based on the modifications a MOC could be sufficiently different to be considered a new MOC. If the original MOC is for sale you can enter into an agreement with the original author of how the proceeds from the sales of the MOC should be distributed among you.

MOCs may NOT be re-used on other sites without explicit permission from the MOC designer.

LEGO Copyright

Most MOCs are LEGO MOCs. If your MOC is based on LEGO you should make sure you do not violate The LEGO Group’s copyright. This includes images with the LEGO Logo. See LEGO’s Fair Play Policy for more details.

Trademarked Terms

If you submit a Premium MOC, you must not use trademarked terms in the MOC’s name. For example, submitting a MOC named “Tie Fighter” which is a term trademarked by Disney is not allowed. Free MOCs do not have this restriction as you do not have the intent to make a profit from the use of their trademark.


Moc3D is a site for content creators building and creating MOCs. Most MOCs are LEGO. Not all MOCs are LEGO. As of today you may not post links to external sites that promote non-LEGO brand bricks designed to impersonate the LEGO brand, yet you can get in touch with us and if the sets are from our understanding different we might think of ways to allow it.

MOC Publication. Request for removal.

As a vendor you publish MOCs. You can change and update their content. You can request their removal. If a MOC is published and already sold to others you may request for removal of the content and for stopping the sale. The sale of the MOC would be stopped. The removal of the MOC could be denied since it is already bought by others and should be still available for them.

Improve on an existing MOC

As a vendor you can update a MOC. Users that have already bought your MOC will get access to the new version of your MOC. This is suitable for small modifications and bug fixes.

You should avoid heavily changing MOCs that are already bought by others.

Inappropriate Content

You must not publish materials that are copyright-infringing, or inappropriate for a LEGO-fan audience. While Rebrickable allows some content that would normally not be considered appropriate by The LEGO Group (e.g. military items), we do not allow content that depict: heavy violence, drug use or sexual content.

No personally identifiable information can be submitted to Rebrickable – in MOCs, photos, comments, etc.


You are expected to remain civil and polite in all discussions with Rebrickable admins and other users, for example via comments, private messages or change suggestions. Any abuse, use of offensive language, preaching or trolling will not be tolerated.


Unsolicited posts or messages advertising external products or services are not allowed. Spam posts in comments, forum posts, private messages, etc will be removed and your account banned.

API Usage

The Rebrickable API may be used for any purpose, including commercial. However, it would be highly appreciated if you provide a statement that the data is sourced from Rebrickable.

Images of Sets and Parts may be used on external websites or apps. You can download them or hotlink them, but run the risk of the URL changing in future updates. However, you may not use MOC images.

The API is provided for ease of access to LEGO data. Under no circumstances are you allowed to use web scrapers to download data, doing so will get your IP banned. If the API does not provide sufficient data, post a request to the Suggestions Forum. Use of web scrapers will result in a permanent ban.