IdentityMainnet
X1ID
Readable handles for X1 wallets, with an SDK so apps can resolve them.
Built by FortiBlox · listed 1 Oct

X1ID gives an X1 wallet a readable name, so people can pay @yourname instead of a 44-character address. One name works across chains, and you own it permanently.
You can pay once or lease to own, and each name comes with a tradeable NFT. A name can be locked if its key is at risk. An SDK and API let wallets and apps resolve names, and docs.x1id.io covers integration.