Mintpool

A decentralized mempool for prechain transactions.

What?

mintpool is a decentralized, mempool like system for things that can be brought onchain. It uses libp2p to allow connected nodes to communicate messages to each other, and exposes that data via rest apis. mintpool features a custom rules engine that allows each node to include or exclude premints they want to store in their local node, based on arbitrary criteria. mintpool will also prune premints that end up being brought onchain, keeping the data served by the node limited to things that can be brought onchain.

Why?

Transactions deserve to be onchain, but paying gas is tricky ux to nail for non-crypto native folks, and at times can be expensive.

mintpool solves this by creating a mempool of transactions others can sponsor to bring onchain for a reward, starting with Zora's Premints.

When you bring a Zora premint onchain you pay the gas for the transaction, but in exchange you receive the first minter portion of the mint fee for every mint of that NFT going forward (0.000111 ETH per mint).

What can I do with mintpool?

Create without worrying about gas

Submitting a premint to a mintpool node is just a POST request away, making it easy to build gas free creation experiences, while getting paid as a platform.

Platforms that mint using zora's protocol can set themselves as the createReferral, and receive the creator referral portion of the mint fee for every mint from that creator going forward (0.000111 ETH per mint).

TODO: add instructions on creating a premint here

POST /submit-premint
{
  "zoraV2": {
    "collection": {
      "contractAdmin": "0xd272a3cb66bea1fa7547dad5b420d5ebe14222e5",
      "contractURI": "ipfs://bafkreicuxlqqgoo6fxlmijqvilckvwj6ey26yvzpwg73ybcltvvek2og6i",
      "contractName": "Fancy title"
    },
    "premint": {
      "tokenConfig": {
        "tokenURI": "ipfs://bafkreia474gkk2ak5eeqstp43nqeiunqkkfeblctna3y54av7bt6uwehmq",
        "maxSupply": "18446744073709551615",
        "maxTokensPerAddress": 0,
        "pricePerToken": 0,
        "mintStart": 1708100240,
        "mintDuration": 2592000,
        "royaltyBPS": 500,
        "fixedPriceMinter": "0x04e2516a2c207e84a1839755675dfd8ef6302f0a",
        "payoutRecipient": "0xd272a3cb66bea1fa7547dad5b420d5ebe14222e5",
        "createReferral": "0x0000000000000000000000000000000000000000"
      },
      "uid": 1,
      "version": 1,
      "deleted": false
    },
    "collectionAddress": "0x0cfbce0e2ea475d6413e2f038b2b62e64106ad1f",
    "chainId": 7777777,
    "signer": "0xd272a3cb66bea1fa7547dad5b420d5ebe14222e5",
    "signature": "0x2eb4d27a5b04fd41bdd33f66a18a4993c0116724c5fe5b8dc20bf22f45455c621139eabdbd27434e240938a60b1952979c9dc9c8a141cc71764786fe4d3f909f1c"
  }
}    

Permissionless aggregator experiences

You can show Zora premint NFTs without having to trust the zora.co api or write and indexer yourself. Each mintpool node stores premints based on their nodes rules, and should see each message sent through the p2p network. This means your node can be your source of truth for the premint NFTs you care about. Each premint contains all the info needed to display and bring an NFT onchain.

See docs/API.md for details on the rest api.

Extend with custom rules and endpoints

mintpool can be used as a binary or as a library, allowing you to extend the functionality of your node. Only want to store premints from a certain creator? You can do that. Don't like our rest api? You can add a graphql api by mounting routes on to our axum router.

See examples/ for code examples on how to add custom rules and endpoints.

MEV Bots (Mint Extractable Value Bots)

Bots are good, they bring onchain liquidity to people who don't want to pay gas and can be lucrative if done correctly.

mintpool nodes can execute arbitrary rules, meaning you could write a rule that mints a premint, turning your node into a bot running on the p2p network.

Operating a node

See docs/OPERATION.md for more information on how to operate a mintpool node.

Contributing

See docs/DEVELOPMENT.md for more information on how to develop mintpool.

Zora will accept PRs that expand the functionality of mintpool, including supporting other protocols.