What is minting an NFT?
- Author
- CRYPTO PORT Editorial
- Published
- Updated
- Reading time
- 4 min
In short
Minting means calling a smart contract to create a brand-new NFT on chain. Unlike buying on a marketplace, you become its first owner directly from the issuer. Gas is spent even when a mint fails, so check the contract you are connecting to before you sign.
Key points
- Creates a new token and assigns it an ID on chain
- Different from a secondary purchase — you buy from the issuer
- Gas is consumed even if the transaction reverts
- Fake mint pages are a common way to steal approvals
Definition
Calling an NFT contract's issuance function to create a new token ID and assign it to the caller's address. The issuance is recorded permanently on the blockchain.
A mint is simply a transaction that calls a function on the NFT contract. The function decides the next token ID and records the caller's address as its owner. On Ethereum, changing that record costs gas.
The mechanics vary by project: pay-per-item mints, free mints where you only cover gas, or mints where the metadata is fixed later. Who can mint, when, and how many are all decided by the contract code — and the code, not the announcement, is what actually runs.
When a mint is crowded, many people compete for the same supply. Once earlier transactions exhaust it, the later ones revert, and the gas already spent is not refunded. That competition is why fees spike right at mint time.
Watch out for
- · Verify the contract address of any mint page you reached from social media or a DM, however genuine it looks
- · An NFT only sells if someone wants it — many end up with no market at all
- · Countdown and 'almost sold out' pressure is often there to stop you checking