zkLink launch - a unified, multi-chain L2 network secured by zero-knowledge technology

Name of Project


Application type


Proposal overview

zkLink is a unified, multi-chain L2 network secured by zero-knowledge technology.

By connecting various blockchains and Layer2 protocols, zkLink’s unified, multi-chain L2 network enables developers and traders to leverage liquidity from isolated chains and offer a seamless multi-chain user experience, contributing to a more accessible and efficient DeFi ecosystem for everyone.

We are applying for investment to accelerate the connection of the Harmony blockchain into zkLink’s L2 network.

The team at zkLink is formed of engineers from ENSPM Paris, Imperial College London, HIT, Duke University, National University of Singapore, Peking University, Tsinghua University, with research and work experience in cybersecurity, cloud computing, cryptography, and zero-knowledge proofs.

Problems solved

A multi-chain, multi-layer infrastructure is the future of the DeFi-verse, but along with its fast development, we identify the following three problems:

  1. Liquidity segmentation: next-generation ecosystems tend to form heterogeneous silos, resulting in a low capital utilization rate that increases the cost for new chains and projects to acquire new users.
  2. Poor user experience: the process for users to swap tokenA on chainA to tokenB on chainB takes significant time and effort, involving multiple networks and gas fees. The poor user experience stunts the enthusiasm of users and traders to use DeFi projects and applications.
  3. Cross-chain security risks: Most chain-interoperability protocols adopt a multi-sig (group of nodes within a POS network) to verify change-in-states and cross-chain status, of which the security assumption is based on token values of the POS network.

zkLink solves all three problems with its unified, multi-chain L2 network, secured with zero-knowledge proofs, and delivered through a seamless user experience.

Proposal ask



  • Testnet launch: Connection of Harmony chain
  • Mainnet launch: Connection of Harmony chain

External links

Our testnet is available right now with two use case demos: an AMM DEX, and Order Book DEX:

Website: https://zk.link/

Docs: https://docs.zk.link/

1 Like

@zkBillsta thanks for the proposal. We are excited to work with zkLink and bring the power of zk to Harmony.

We can treat this as a bounty with $25k for testnet launch and $25k for mainnet launch.

Approved for $50k :tada:

Meanwhile, to prepare receiving funds, email your identification documents to kyc@harmony.one and create a Gnosis Safe MultiSig wallet at https://multisig.harmony.one and using instructions below
:arrow_right: Setup Gnosis Safe with MetaMask & 1Wallet

Checkout the Funding FAQ for further info at Harmony Funding FAQ. Join the Harmony Grants Telegram channel to share your story and to gain partnerships there by growing your own ecosystem.

Please join the Harmony Grants Telegram channel and Harmony’s Discord server.

We’d love :blue_heart: to see weekly updates on this thread here, to keep the community posted on this proposal’s progress!

Thanks @giv

We will follow up, and post updates on the Harmony integration soon.