The Chainlink Fall 2021 Hackathon kicks off October 22. Sign up today.
Worldwide Event // Oct 22 >> Nov 28
Join us for our biggest hackathon yet, where you’ll get the chance to build the next generation of hybrid smart contracts alongside developers, creators, artists, and industry-leading mentors from across the blockchain ecosystem.
Reasons to join
Win prizes from a total pool of $525k
Attend world-class workshops hosted by experts in the blockchain space
Pitch your project to leading VCs
Connect with like-minded developers and community members
Learn and grow as a newcomer to the space


in total prizes
check back to watch it grow!
Grand Prize
Chainlink Services - First
All-Women Team Prize
On The Rise
45 x $5,000
VC Pitch Day
NFT & Gaming Prize
Chainlink Services - Second
ChainShot Bootcamp Seat
DeFi Prize
Chainlink Services - Third
Dapp University Bootcamp Seat
DAO Prize
Top Quality Project Winners
20 x $1,000
30 "Welcome" NFTs
Social Impact Prize
Total Sponsor Prizes


This year, we’re offering two tracks so that developers of all skill levels are included within our community. Developers can choose between the Main Track and the Welcome Track.

Main Track

The Main Track is for experienced blockchain developers looking to take their smart contract experience and projects to the next level. Main Track participants will have the chance to compete for prize bounties across a variety of categories and pitch their projects to a group of leading VCs.

Welcome Track

The Welcome Track is intended for all developers who are new to blockchain coding and want to participate in their first smart contract hackathon. The Welcome Track is a low-stakes environment tailored to learning, where participants can access valuable educational resources and win cash prizes, Chainlink swag, and NFTs.
The schedule will continue to expand leading to the hackathon. Stay tuned for more details about workshops and pre-event festivities!
22 october
Chainlink Hackathon Starts
6:00 PM EST
Hackathon Opening Ceremony
7:30 PM EST
Team Creating Event in @ Gather
23 october
6:30 AM EST
Saturday Team Building Event
8:00 AM EST
Intro to Solidity & Blockchain
11:00 AM EST
Everything Chainlink
24 october
11:00 AM EST
Scalable, interoperable dApps with Polygon
12:00 PM EST
Scaling DApps using Polygon
25 october
8:00 AM EST
Brownie & Python Development Framework
9:00 AM EST
How to Build Great dApps Fast with Moralis
6:00 PM EST
Hardhat, Truffle, & Javascript Development Framework
26 october
8:00 AM EST
Building a DeFi dApp
11:00 AM EST
Avalanche Workshop: Subnets and Virtual Machines — a network of networks
1:00 PM EST
Building with Elastic Finance
6:00 PM EST
Building an NFT
27 october
8:00 AM EST
Brownie Testing
3:00 PM EST
Building on Bentobox
6:00 PM EST
Hardhat Testing
28 october
8:00 AM EST
Running a local Chainlink Node
Building dapps with scaffold-eth
6:00 PM EST
Building and Using External Adapters
29 october
8:00 AM EST
Full Stack DeFi Application
4:30 PM EST
Full-Stack w/ Moralis
6:00 PM EST
Full Stack NFT
8:00 AM EST
Building a DAO
1:00 PM EST
dApp tutorial by IPFS/Filecoin
6:00 PM EST
Upgrades (Hardhat)
8:00 AM EST
Upgrades (Brownie)
6:00 PM EST
OpCodes (tentative)
8:00 AM EST
Chainlink Hackathon Code-along: Decentralized Raffle
6:00 PM EST
Speed Coding
6:00 PM EST
Twitter Hangout
Midway Check in
6:00 PM EST
Scavenger Hunt
Submissions due
5:00 PM EST
Hackathon Closing Ceremony


Sergey Nazarov
Emin Gün Sirer
Founder & CEO
Allen Day
Developer Advocate
Google Cloud
Austin Griffith
Ethereum Foundation
Photo of Brandon Iles
Brandon Iles
Co-Founder / CTO
Ampleforth Protocol / Fragments
Devon Yarbrough
Tech Lead
UFO Gaming
Photo of Matty Taylor
Matty Taylor
Head of Growth
Solana Labs
Brantly Millegan
Director of Operations
Gabriel Cardona
Developer Evangelist
Sarang Parikh
Core Developer
Ivan Liljeqvist
Longfei Wang
Community Engineer
Developer Advocate
Developer Advocate
Yusef Napora
Sandipan Kundu
Developer Evangelist
Xiangan He
DevRel Engineer
Samy Karim
Ecosystem Development
Binance Smart Chain
Alex Sherbuck
Sr. Blockchain Developer
Antoinette Marie
Blockchain and Social Innovation Product Consultant
Heifer International
Antoni Hryniewiecki
Marketing Manager
0xHack by TrustToken 
Scott Thiel
Legal Partner
TOKO Limited
Martin Abbatemarco
Security Researcher
Johannes Tammekänd
Co-Founder & CEO
Guillaume Palayer


Defi Alliance
Ethereal Ventures Logo
Ethereal Ventures


Technology Sponsors

We are proud to partner with these market-leading protocols and organizations. This list will continue to grow. If you or your organization is interested in sponsorship opportunities, please reach out.
Google Cloud wants to help startups focus on their ideas, innovate and grow into the next great company. We empower startups to grow with the same tools and infrastructure used to build Google. Get up and running quickly with mentorship, training, and Cloud credits from the Google Cloud for Startups program.
Filecoin is making the web more secure and efficient with a decentralized data storage marketplace, protocol, and cryptocurrency.
EY exists to build a better working world, helping create long-term value for clients, people and society. Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.
Moralis is the fastest path from idea to mass-scale dApp, letting you focus on great experiences rather than heavy lifting.
SNZ Holding is a crypto-native thesis driven fund. We embrace innovative ideas and empower startup projects with the SNZ resource hub across multiple ecosystems.
UFO Gaming is a fully decentralized gaming platform bridging traditional games onto the blockchain and giving players the ability to earn while playing.
The United Nations Children's Fund (UNICEF) works in 190 countries and territories to translate technologies into practical action, focusing special effort on reaching the most vulnerable and excluded children, to the benefit of all children, everywhere.
Polygon is a protocol and a framework for building and connecting Ethereum-compatible blockchain networks.
Avalanche is the fastest smart contracts platform in the blockchain industry, as measured by time-to-finality, and has the most validators securing its activity of any proof-of-stake protocol.
Alchemy provides the leading blockchain development platform that powers millions of users for 99% of countries worldwide.
Build on Harmony, run on all chains. Harmony is your open platform for assets, collectibles, identity, governance. Be the ONE to bridge to all blockchains.
Aurora is an EVM built on the NEAR Protocol, delivering a turn-key solution for developers to operate their apps on an Ethereum-compatible, high-throughput, scalable and future-safe platform, with low transaction costs for their users.
Solana logo

Community Sponsors

We are proud to partner with our community sponsors to upskill and enable developers in the blockchain space to build an economically fair world powered by cryptographic truth. If you or your organization is interested in contributing, reach out.


Who can participate?
Anyone from anywhere in the world can participate. Read all the Rules and the Code of Conduct here.
How much does it cost to attend?
Nothing, attendance is free.
How many people can be on a team?
1-5 people per team.
What if I've never been to a hackathon or worked with Chainlink before?
No worries! It’s helpful to have some software engineering experience, but it’s not a requirement. Projects often need designers, front-end engineers, project managers, and more. We will also have talks, workshops, and mentors to help you with your project. This is a great place to learn about all things blockchain and smart contracts.
When can I start working on my project?
As soon as the hackathon opens. To keep the playing field fair, we don’t allow teams to begin building prior to the start of the hackathon. If your project is an upgrade to an existing project, please check with us beforehand.
How will this event take place?
This event takes place online. The hackathon chat/support happens on Discord, workshops happen over Zoom, and projects are submitted through Devpost. 
What is Chainlink?
Chainlink is the industry standard for building, accessing, and selling oracle services needed to power hybrid smart contracts on any blockchain. Chainlink oracle networks provide smart contracts with a way to reliably connect to any external API and leverage secure off-chain computations for enabling feature-rich applications. Chainlink currently secures tens of billions of dollars across DeFi, insurance, gaming, and other major industries, and offers global enterprises and leading data providers a universal gateway to all blockchains.

Stay updated on the latest Chainlink news