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Blockchain · Major Project
NFT Marketplace
Mint ERC-721 tokens, list them for sale and pay creators royalties
3-4 weeks build
Overview
Artists upload an image and metadata to IPFS and mint an ERC-721 token pointing at it. Owners list tokens at a fixed price, buyers purchase with test ETH, and the marketplace contract settles the sale, sending the EIP-2981 royalty to the original creator on every resale. Profiles show what each wallet has minted and owns. Runs on Sepolia or local Hardhat, never mainnet.
What makes it stand up
- 01ERC-721 minting built on OpenZeppelin contracts
- 02Image and JSON metadata pinned to IPFS
- 03Fixed-price listings with cancel and relist
- 04EIP-2981 royalties paid to creators on resale
- 05Sepolia or local deployment with test ETH only
Module breakdown
- 01
Token contract
ERC-721 with URI storage and royalty info.
- 02
Metadata
Uploads artwork and metadata JSON to IPFS.
- 03
Marketplace
Handles listings, purchases and royalty splits.
- 04
Indexing
Reads Transfer and Sale events to build profiles.
- 05
Frontend
Next.js gallery, mint form and wallet profile pages.
After this, you will be able to
- Explain the ERC-721 standard and what tokenURI points to
- Defend how the marketplace handles approval before a sale
- Demo minting, listing and a royalty-paying resale
Technology stack
- Solidity
- OpenZeppelin
- Hardhat
- ethers.js
- Next.js
- IPFS
- Level
- Major Project
- Domain
- Blockchain
- Build time
- 3-4 weeks
- Difficulty
You receive
- Complete, commented source code
- 60-90 page project report (IEEE format)
- Editable presentation deck
- Architecture, ER and UML diagrams
- Local setup and deployment guide
- Sample dataset or seed data
- Viva question bank with answers
- One 45-minute walkthrough call
- 30 days of doubt-clearing support