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Name Wrapper Overview
Name Wrapper Overview

An overview of the Namewrapper contract

Updated over a week ago

The Name Wrapper is a new contract for ENS that allows you to "wrap" any ENS name into a ERC-1155 NFT.

Without the Name Wrapper

Before the Name Wrapper, only .eth 2LDs (second-level domains, like ens.eth) had ERC-721 NFTs associated with them, unless the owner created a separate custom contract.

With the Name Wrapper

Parent-Controlled Fuses:

  • Fuses that only the parent owner can burn

  • "Perks" that can be given to the owner of a name

Example: By burning CAN_EXTEND_EXPIRY, you allow the owner to extend/renew their own subname

Owner-Controlled Fuses:

  • Fuses that either the owner or parent owner can burn

  • "Permissions" that can be revoked on a name

Example: By burning CANNOT_TRANSFER, the wrapped NFT can no longer be transferred or sold.

Subname Fuses:

  • The parent owner has the power to burn fuses when creating subnames

  • Decides what perks, permissions, or guarantees to give to subname owners

With this new contract, you can wrap:

  • Any .eth name or subname
    ​Examples: name.eth, sub.name.eth

  • Any DNS name or subname
    ​Examples: name.com, sub.name.com

Unwrapped .eth 2LDs have the concept of a separate Owner (Registrant) and Manager (Controller).

This changes after you wrap the name, because there is only a single account that serves as both the Owner and Manager for the wrapped name.

Wrapping and Unwrapping

When wrapping a .eth 2LD, you transfer the Owner (Registrant) of the ERC-721 NFT to the Name Wrapper contract.


The contract will then automatically take over the Manager (Controller) for the name as well.

You can do this by calling the wrapETH2LD method. Or, you can directly transfer the ERC-721 NFT to the Name Wrapper contract. In return, the contract issues you an ERC-1155 NFT.

When wrapping any other ENS name, you transfer the Manager (Controller) of the name to the Name Wrapper contract. You can do this by calling the wrap method. In return, the contract issues you an ERC-1155 NFT.

As the owner of the wrapped name, you can unwrap at any time by calling either unwrapETH2LD or unwrap. You can do this as long as the permission to unwrap has not been revoked.

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