Building the Future, Onchain

Build the future of onchain finance and AI alongside thousands of developers, creators, artists, and mentors with the goal of enabling new use cases that combine DeFi, Tokenized Assets, and AI.

• Running from May 30 - June 29
• Free registration
• Completely virtual and global
• $200K+ prizes (and growing) across trending industry verticals
• Gain hands-on experience with the backbone of blockchain
• Explore innovative use cases in AI, Tokenization, RWAs, and more
• Learn with Chainlink’s developer resources and connect with the community

This hackathon fast-tracks developers’ journey into onchain finance with focused workshops, clear prize tracks, and opportunities for networking.

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Important Reminders:

• Opening Ceremony: May 30, 12 PM Eastern Time
• Project submission deadline: June 29, 11:59 PM Eastern Time
• Closing Ceremony: July 17, 10AM Eastern Time
• Hackathon workshop schedule can be downloaded here

As blockchain technology evolves, the need for skilled developers grows. This hackathon supports everyone—from beginners to experienced pros—in building the future of decentralized finance. What you gain depends on what you put in. Chromion provides the resources and time to challenge yourself, connect with others, and make an impact in the blockchain space. Don’t miss your chance to learn, innovate, and help shape onchain finance.

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What is Chainlink?

Chainlink is the standard for onchain finance, verifiable data, and cross-chain interoperability. Chainlink is unifying liquidity across global markets and has enabled over $20 trillion in transaction value across the blockchain economy. Major financial market infrastructures and institutions, such as Swift, Fidelity International, and ANZ Bank, as well as top DeFi protocols including Aave, GMX, and Lido, use Chainlink to power next-generation applications for banking, asset management, and other major sectors. Learn more by visiting chain.link.

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Register today and gear up with hackathon resources

To help maximize the success of projects, hackathon participants will be provided with direct access to experienced mentors and technical support, extensive educational materials for learning about off-chain services, live workshops showcasing how to use Chainlink, and much more. We also encourage you to join the hackathon channel in the official Chainlink Discord to meet other hackers and to explore our collection of developer resources below:

• Chainlink Docs
• Hardhat Starter Kit
• Foundry Starter Kit
• CCIP Starter Kit Hardhat
• CCIP Starter Kit Foundry
• Functions Hardhat Starter Kit
• Bootcamps
• Chainlink Developer Hub
• CCIP Local Simulator
• Chainlink Faucet
• Chainlink Discord Channel

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Requirements

• Each project must use Chainlink in some form to make a state change on a blockchain, otherwise it will not be eligible for the Chainlink core prizes. This means that a front end simply reading from Chainlink data feeds doesn't count. Using one of Chainlink Data Feeds, Chainlink Data Streams, Chainlink VRF, Chainlink Proof of Reserves, Chainlink Automation, Chainlink Functions or Chainlink CCIP inside your smart contracts is required.

• For sponsor prizes, you do not have to use Chainlink - but to make your project eligible for both sponsor prizes as well as the main Chainlink ones, it's recommended that you do!

• Note that past hackathon projects will not be accepted as valid submissions. The only exception to this rule is if you and your team have built an existing project and are updating it with new components. These can be added upon and submitted in a valid manner.