Is there any way of creating ERC-1155 or ERC-721 tokens always earn transaction fees?

Question

I have a rather interesting but challenging question. I want to create ERC-1155 and ERC-721 tokens that will be primarily traded using a Decentralized Exchange (DEX) implemented for a newly created protocol. However, I want to allow those tokens to be traded on external DEXes such as OpenSea. That is possible, no question about, but my question relates to protocol fees earned on transactions.

Is there a way of accruing protocol fees on transactions (trades) even if they are not on the native DEX? It would seem to me it should be possible by programming the smart contract such the protocol fee is always collected, but I am not clear on how that would work practically.

Any ideas? Is there something obvious that I am not thinking about?

Possible solution

Could I implement the solution suggested by @porton as follows? This is now slightly updated to include a percentage.

contract myNFT {
    address public immutable feeAddress;
    uint256 public immutable feePercentage;

    // Set address to receive fees
    constructor (address feeAddress, feePercentage) public {
        feeAddress = _feeAddress;
        feePercentage = _feePercentage;
        }

    //******************
    // Some other stuff
    //******************

    function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes data) external payable {

        uint256 private _feeAmount;
        _feeAmount = (getLastTradePrice()*feePercentage/10^18);

// This only works if sufficient funds have been provided for the fees. Otherwise the trade will fail

        address(feeAddress).transfer(feeAmount);
        
        //******************
        // Some other stuff
        //******************
        }
    }

getLastTradePrice() will access an Oracle managed by the protocol to track trades made on external trading platforms.

Could this work?

Answer 1

It is easy to create an NFT that transfers a fixed fee to you at every transfer of this NFT. Just add transfer (of ETH, or an ERC-20/1155) to it.

It is nearly impossible to get a transaction percentage every time a token is traded:

• Suppose somebody buys your token on Uniswap. Then your token receives from a Uniswap a message to be transferred. The token can know that it is Uniswap (if somebody does not use an unknown to your token clone of Uniswap or something other), but can't know the details of the Uniswap transaction (such a the buying token amount) because it is not yet mined, so your contract does not know the amount.
• You can know prices of tokens from Uniswap or Chainlink, for instance, but not every token is listed there. So you don't know the price.
• Somebody may create a new token specifically to buy your token and manipulate its price to be zero. So your percentage would be zero.