Blockchain and DeFi · Digital asset trading

One DEX interface across four chains, with a multichain SDK and 199 trading pairs

Kwikswap is a multichain decentralized exchange. It began on Ethereum, and we took it to BNB Smart Chain, Polygon and Shiden. One interface and one SDK run over separate deployments, with farms, staking, analytics and token claim tools.

Client: Kwikswap
Chains: Ethereum, BNB Smart Chain, Polygon, Shiden
Stack: Solidity, a SushiSwap-based interface and SDK, The Graph
Team: 2 engineers plus PM, QA and design
Timeline: 2021 to 2023
Status: Delivered 2023

Kwikswap home page: a decentralized protocol on the Ethereum network where users swap, create markets, add liquidity and stake. — The Kwikswap site. Archived copy, Mar 2026

Trading pairs: 199; Exchange factories on 4 chains, Oct 2026
KWIK holders: 2,524; Ethereum token contract, Oct 2026
SDK releases: 10; npm, Sep 2021 to Feb 2023

The challenge

Kwikswap started on Ethereum in 2020 and needed to run on more chains without splitting its interface.

Each chain needed its own deployment and token list, while users saw one exchange.

Our approach

One interface, separate deployments

Each chain runs its own factory and router. A network switcher keeps one interface and one SDK over all four.

A multichain SDK

We published @kwikswap/multichain-sdk, based on the SushiSwap SDK, with 10 releases from 2021 to 2023.

Token claims by Merkle proof

A vesting claim portal on Ethereum and BNB Smart Chain releases tokens on schedule, with a bulk sender for distributions.

What we built

Deployed and extended the DEX contracts: farms, staking and LP migration.
A multichain interface with a network switcher.
A multichain SDK published on npm.
A vesting claim portal and a bulk token sender.
Analytics and subgraphs for BNB Smart Chain and Ethereum.

How it fits together

People
- Traders and liquidity providers
- DevelopersMultichain SDK on npm
Apps
- Multichain interfaceSushiSwap-based, with a network switcher
- Vesting claim portal and bulk token sender
Data
- Subgraphs and analyticsBNB Smart Chain and Ethereum
Contracts
- DEX contractsEthereum, BNB Smart Chain, Polygon and Shiden
- Farms, staking and LP migration

How Kwikswap ran one interface across four chains

Services behind this work

Security and quality

Ethereum and BNB Smart Chain had their own subgraphs, so the analytics pages read on-chain data.
The SDK was versioned on npm, so integrators pinned exact releases.

Outcome

Kwikswap ran one exchange across four chains, with 199 trading pairs.

The KWIK token has 2,524 holders on Ethereum.

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