We’d like to thank everyone who participated in the Klaytn-Covalent Unified Hackathon. We were really impressed by all the amazing projects submitted. Without further ado, here are the winners for Klaytn-Covalent Unified Hackathon 2022!



An easy to use CLI tool to query the Covalent Class A endpoints, and an underlying Rust library which exposes all of the Covalent Class A Endpoints (except NFTs currently) to Rust developers.

Visit the Covctl github

🥈1st Runner-Up🥈


An NFT vault that allows users to fractionalize their NFTs on Klaytn, to enable new ways of interacting with NFTs which can prove to be more fun, engaging, and profitable for everyone involved.

Visit the Fractionalized github

🥉2nd Runner-Up🥉

Mutual NFT Searcher

A project that allows users to easily compare any two NFT projects in detail. Currently KLAY, ETH, MATIC, BSC NFTs are supported, but using Covalent API, it can be expanded easily.

Visit the Mutual NFT Searcher github

🎁Bonus Prizes🎁

Klaytn DeFi Dashboard

A project that used the Covalent API to build a user friendly DeFi DEX dashboard that displays Klaytn blockchain assets on Claimswap, a DEX built on the Klaytn mainnet.

Visit the Klaytn DeFi Dashboard github


Acend is a multi-chain dapp that allows users to better manage and view their NFT assets across chains in a simple and very intuitive UI.

Visit the Acend github

Klaytn Watch

Klaytn Watch is a DeFi dashboard that allows users to search their address and view their token holdings and balance, also available is the ability for users to view their NFT holdings and their balance(s) and price if available.

Visit the Klaytn Watch github

Another huge round of 👏🏼 for all our winners and hackers who participated at Klaytn-Covalent Unified Hackathon this year! We’re so excited for you to continue your journeys into Web3 on both of our ecosystems. We hope to see all of you in person at next year’s edition of the Klaytn-Covalent Hackathon or any of our upcoming events!

We’re excited to announce a joint Klaytn-Covalent Hackathon for Web3 developers building on the Klaytn network! The hackathon runs from May 12 to May 26 with $20,000 USD in bounty prizes. There will also be opportunities for developers who can’t commit to the full hackathon to participate in hackathon quizzes and challenges with a chance to win additional prizes.

Registration is now open — click here to sign up for the hackathon!

Covalent integrated Klaytn as a supported network in September 2021 and the Unified Covalent API is the fastest way for developers to get on-chain data into their projects. Covalent is the leading data provider for rich, granular and historical blockchain data on Klaytn’s network.

Hackathon participants will create a range of dApps, including NFT galleries, DeFi Dashboards, DAO analytics, custom wallets, portfolio management tools, and much more!


There are three categories with $5,000 USD in prizes each broken down as follows:

Bounty 1: NFT Track

This track is for developers who are interested in building NFT-related use cases such as an NFT marketplaces, cross-chain NFTs, and NFT aggregators.

Bounty 2: DeFi Track

This track is for developers who are interested in building DeFi-related use cases such as DeFi dashboards, yield farming tools, and DeFI aggregators.

Bounty 3: DApps Track

This track is for developers who are interested in building dApp-related use cases such as transparency dashboard, on-chain analytics, and blockchain-enabled traceability applications in the supply chain industry.

Community Challenges

We encourage people in our developer community to participate in daily quizzes, challenges and quests during the hackathon. There are over $5,000 USD in prizes to be won for these categories!

Register now

Click here to register for the hackathon!

About Covalent

Covalent provides the industry-leading Unified API bringing visibility to billions of Web3 data points. Developers use Covalent to build exciting multi-chain applications like crypto walletsNFT galleries, and investor dashboard tools utilizing data from 32+ blockchains. Covalent is trusted by a community of 23,000+ developers and powers data for 1000+ applications including 0x, Zerion, Rainbow Wallet, Rotki, Bitski and many others.

Covalent, the leading provider of indexing solutions for blockchains, has integrated with Klaytn, expanding the availability of data on the platform and simplifying the experience for developers who need reliable, high-quality data.

Covalent provides a unified API to bring full transparency and visibility to assets across all blockchain networks. Its dataset supports 25B+ transactions, 30,000+ price feeds, and 200,000+ smart contracts for querying.

[Partner Problem Statement]

Through this integration, Klaytn is expanding the availability of data on the platform and simplifying the experience for developers who need reliable, high-quality data. Using the Covalent API, developers can pull [Partner] mainnet data. You can access the network via the unified API by changing the chainId parameter. The blockchain data available includes:

● Token balances per address

● Historical transactions per address

● Historical prices by address and ticker symbol

● Decoded log events

This seamless experience significantly enhances Klaytn’s developer experience.

[Quote from Ganesh, Covalent CEO]

“We’re excited for this partnership with Klaytn as it will be new territory for us. Klaytn is an enterprise-grade settlement layer, making this integration a new and interesting regulatory framework that we are more than ready to take on.”

[Quote from Officials at Klaytn Foundation]

“We are pleased to have this partnership with Covalent as one of our steps toward global adoption, offering high-quality data for developers, researchers and users from all over the world.”

Covalent will soon be launching a campaign for developers building with Klaytn. To stay updated on that campaign, as well as ways to use Covalent’s data, please visit the Covalent Website and Twitter.

About Covalent

Covalent leverages big-data technologies to create meaning from hundreds of billions of data points, delivering actionable insights to investors and allowing developers to allocate resources to higher-utility goals within their organization. Instead of pain-stakingly sourcing data from a small handful of chains, Covalent aggregates information from across dozens of sources including nodes, chains and data feeds. The Covalent API then sources end users with individualized data by wallet, including current and historical investment performance across all types of digital assets. Most importantly, Covalent returns this data in a rapid and consistent manner, incorporating all relevant data within one API interface.

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