A cross-chain automated market maker, yield farming, and NFT marketplace on Binance Smart Chain.

PaybSwap aims to unify the cryptocurrency trading market with the support of Nextrope’s agile software development and FinTech consulting.

About the Client

PaybSwap is an ambitious London-based startup that aims to address diverse challenges within the DeFi space. PaybSwap team members are professionals experienced in Blockchain and DeFi projects.

The team aims to build a Cross-chain AMM bridge between Binance Smart Chain and Ethereum network, and issue its own tokens.

Industry: Cryptocurrency Trading Platform, DeFi
Company Size: Startup
Location: London, United Kingdom
Status: ongoing
Scope: Process Consulting, Frontend, Backend & Smart Contract Development
Tech Stack: Node.js, React, PostgreSQL
Website: https://paybswap.finance/

Trading assets from multiple blockchains using bridge modules

Blockchain is constantly growing. With the increasing attention from investors, entrepreneurs, and institutions focused on Blockchain technologies and cryptocurrencies, we witness the development of new chains and trading platforms that operate on numerous protocols. This led to the rise of DeFi tools, enhancing the unification and improving the liquidity of the fragmented market by so-called bridges.

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Tomasz Sienicki

Blockchain Strategy Manager at Alior Bank

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The Challenge

Technology selection and development

Nextrope software development services bring together a custom solution and a bridge shared by Binance. The challenge is to bypass the limitations that the Binance bridge has.

Interconnect ability of two blockchains

Nextrope faces the challenge of smooth and bilateral conversions of tokens on two blockchains: Binance Smart Chain and Ethereum network.

Rapid Changes in the business environment

The DeFi environment is rapidly changing, including the technologies and business requirements of the industry. That is why Nextrope developed a platform in an agile methodology that allows responsiveness to the business requirements of the Client. At the same time, Nextrope’s research team delivered consulting and business analysis services.


The Solution

Cryptocurrency trading platform using an Automated Market Maker model, allowing users to trade cryptocurrencies and move their tokens between two blockchains: Ethereum and Binance Smart Chain.

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Konrad Szałapak

PM on behalf of Nextrope

Selected functionalities of the platform

Liquidity pool:

Facilitates trading in the Automated Market Model model that replaces the Order Book.

The custom bridge

The custom bridge connects two blockchains, allowing to manage Clients’ tokens and connect Ethereum and Binance Smart Chain.

Smart contracts:

Serve transactions performed on Binance Smart Chain.

KYC Integration:

The platform is integrated with Know Your Client solution provider.

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Thanks to the close cooperation with Nextrope’s research and development team, PaybSwap delivers a Decentralised Exchange that is addressing market challenges. The project is planning listing at Coingeko in 2021 and its further development.

The Decentralized Exchange (DEX) is fully integrated and compliant with KYC - Know Your Client regulations.

Technology choice

Node.js z platformą Loopback do obsługiwania REST API.
Baza danych PostgreSQL
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