Onchain-music-metadata NPM

Music NFT OnChain Metadata

Standard for musicians pioneered by Catalog & Mint Songs.

73 unique Music NFT attributes stored on chain in your music nft metadata.

- WARNING: these contracts are unaudited

You Newest Tool for Music NFTs (100% on chain)

Your Music NFT Smart Contract (ERC721).
Your Music NFT in OpenSea
Works out of the box.
100% free CC0 technology (MIT License - use this w/o crediting me).

Get Started

To add music NFT metadata to your next music NFT drop, just

npm i onchain-music-metadata
import "onchain-music-metadata/contracts/OnChainMusicMetadata.sol";
contract MyMusic is OnChainMusicMetadata
use the musicTokenUri(tokenId) method freely.

Example Music NFT:

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.15;

import "onchain-music-metadata/contracts/Example/ExampleToken.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract MusicNFT is ERC721, ExampleToken {
    uint256 songId;

    constructor() ERC721("music nft", "mnft") {
        songId = 0;
        setupSongMetadata();
        setupProjectMetadata();
    }

    function mint() public {
        songId++;
        _mint(msg.sender, songId);
    }

    function tokenURI(uint256 _tokenId)
        public
        view
        virtual
        override(ERC721)
        returns (string memory)
    {
        require(_exists(_tokenId), "tokenId doesn't exist");
        return musicTokenUri(_tokenId);
    }
}