Metaplex is a protocol built on top of Solana that allows:
- Creating/Minting non-fungible tokens;
- Starting a variety of auctions for primary/secondary sales;
- and Visualizing NFTs in a standard way across wallets and applications.
Metaplex is comprised of two core components: an on-chain program, and a self-hosted front-end web3 application.
In Depth Developer's Guide
If you want to deep dive on the Architecture, you can do so here: Architecture