> For the complete documentation index, see [llms.txt](https://docs.cryptodo.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cryptodo.app/how-to-use-cryptodo/how-to-create-a-smart-contract-erc-721.md).

# How to create a smart contract  (ERC-721)

{% embed url="<https://www.youtube.com/watch?ab_channel=CryptoDo&v=TjC1LRZtoyM>" %}

## You have selected a smart contract type (ERC-721)

<figure><img src="/files/1GjWWSeUftuF3o3HUGcb" alt=""><figcaption></figcaption></figure>

1. In the "Contract Names" field, you must enter the name of the contract <mark style="color:red;">(The name of the contract must be in English!)</mark> The name of the contract can be anything and will not conflict with the same names of the token.

   <div align="left"><figure><img src="/files/rAt0zNH8qHDbSwmNrQXf" alt=""><figcaption></figcaption></figure></div>
2. In the "Total supply" field, you must enter the maximum amount of NFT that can be exchanged through your contract.&#x20;

   <div align="left"><figure><img src="/files/XmCOc1EYKdpQRtAuu62H" alt=""><figcaption></figcaption></figure></div>
3. In the "Token Name" field, you must come up with a name for the token you are creating <mark style="color:red;">(The token name must be in English!)</mark>.&#x20;

   <div align="left"><figure><img src="/files/ybAs0dlUEfkuGpJZErgJ" alt=""><figcaption></figcaption></figure></div>
4. In the "Symbol" field, you must enter the symbol of the token <mark style="color:red;">(The symbol of the token must be in English and consist of at least 3 letters/symbols !)</mark>. "Symbol" is an abbreviation (short for "Token Name").&#x20;

   <div align="left"><figure><img src="/files/LbqY6pWw0mrqXzdNGMbO" alt=""><figcaption></figcaption></figure></div>
5. In the "Token per transaction" field, you must enter the maximum number of tokens available for purchase in 1 mint transaction.&#x20;

   <div align="left"><figure><img src="/files/AjrHsWQ7QacmrR2HWEyc" alt=""><figcaption></figcaption></figure></div>
6. In the "Number of tokens per wallet" field, you must enter the maximum number of tokens available for purchase per 1 address.

   <div align="left"><figure><img src="/files/FT8JwBUotGqkCehBo0eO" alt=""><figcaption></figcaption></figure></div>
7. In the "Price" field you must enter the price <mark style="color:red;">(A number must be entered in the field)</mark>. You set the price of the token for 1 BNB.  &#x20;

   <div align="left"><figure><img src="/files/hz2kOQ9H7daQP3KHTBCN" alt=""><figcaption></figcaption></figure></div>
8. In the "Time for reveal" field, you must select a date for the revision of your collection.

   <div align="left"><figure><img src="/files/aVSP6KA6OLh8kAyuOzB7" alt=""><figcaption></figcaption></figure></div>
9. In the "Base URI" field you must enter the base file path (meta data) for your NFT (where your NFT files/images are stored).

   <div align="left"><figure><img src="/files/9s2l5VH9RxhYkquT7ywI" alt=""><figcaption></figcaption></figure></div>
10. In the field "Founder address" you must enter (insert address) for the withdrawal of profit.

    <div align="left"><figure><img src="/files/banW1WcaQyTpcYP0Ah7W" alt=""><figcaption></figcaption></figure></div>
11. In the "Owner Address" field, you must enter or leave your wallet address as standard.

    <div align="left"><figure><img src="/files/Ls0MyMB9UfgbA9XVkQSL" alt=""><figcaption></figcaption></figure></div>
12. Additional functions of the contract:
    * Additional emission - this feature allows you to increase the total supply (total number of tokens) in your NFT collection after deploying a smart contract to the blockchain.
    * Presale - this feature allows you to create a list of wallets (White List) that will have access to an early purchase of your NFT collection / NFT tokens at a certain price.

      <div align="left"><figure><img src="/files/SCgPxR6jlXNlR3LE9uN7" alt=""><figcaption></figcaption></figure></div>
13. You have the choice to run your smart contract on the "Testnet" test network (free of charge) to check its performance, or on the "Mainnet" for CDO to the Internet, a ready-made version of the smart contract.

    <div align="left"><figure><img src="/files/e9fjUGD6xhsJtNjkuHYJ" alt=""><figcaption></figcaption></figure></div>