NFT Swap Sdk

Abstract

1. Introduction

tl;dr: NFT Swap SDK is the easiest, most-powerful swap library available on the EVM. Supports Ethereum and EVM-compatible chains (Polygon, Avalanche, BSC, etc.). Works in both browser and Node.js. Written in TypeScript, built using the 0x protocol. With this library, you can build support for NFT marketplaces, over-the-counter (OTC) exchanges, and/or peer-to-peer exchanges.

The NFT Swap SDK developed by Trader.xyz offers swap support for ERC20s, ERC721s, and ERC1155s. Exchange NFTs for NFTs, NFTs for ERC20 tokens, or bundles of NFTs and tokens. This library provides the ultimate swap flexibility combined with a simple API surface area so you can be productive immediately and focus on building your web3 app.

This library is powered and secured by the 0x v3 protocol. The 0x v3 protocol has been in production for multiple years securing billions of dollars with of trades.

2. Objective

Ethereum's missing p2p NFT and token swap library for web3 developers. Written in TypeScript. Powered by 0x.

This project demonstrates how TypeScript, Ethereum can be applied to a real-world Blockchain & Cloud Computing problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Node.js (LTS) and npm / yarn / pnpm
• VS Code or any code editor
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/trader-xyz/nft-swap-sdk.git
cd nft-swap-sdk

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add a CI/CD pipeline with GitHub Actions
• Deploy to a public test network or cloud free tier
• Add monitoring and cost alerts

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Why does this problem need a blockchain or cloud-native design?
2. Explain the smart contract / infrastructure components and how they interact.
3. How are gas costs or cloud costs kept under control?
4. How is the system secured (keys, IAM, access control)?
5. How would the solution scale to many more users?

9. Source Code & License

This project is developed by trader-xyz and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.