
Upgradooor
Upgradooor is an RMRK tool that converts existing ERC-721 collections into modular NFTs with multi-asset, nestable, and composable capabilities.

What is Upgradooor?
Upgradooor is a tool from the RMRK team that converts existing ERC-721 collections into modular RMRK NFTs. Collection owners point it at their contract and migrate tokens to gain RMRK standards like multi-asset outputs, nestable NFTs that hold other NFTs, composable NFTs that equip other NFTs, and on-chain emotes. It runs on Astar, Base, and Moonbeam alongside the Singular marketplace.
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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

