Smart contract developers are reinventing applications in finance, gaming, insurance, art, and many more industries, creating a system that executes contracts based on mathematical certainty. Chainlink decentralized oracle networks are at the center of this evolution, enabling developers to leverage high-quality data from APIs and other data sources along with powerful off-chain computation resources to build the next generation of smart contract applications.

Whether you need secure market data for a DeFi app, verifiable randomness for a blockchain-based game, or low-cost off-chain computation to automate various contract functions, Chainlink’s flexible oracle infrastructure provides developers with the extensive suite of decentralized services they need to build more feature-rich dApps.  

This year’s Chainlink Fall Hackathon aims to empower developers of all skill levels to use Chainlink oracle networks to build decentralized applications that address a wide range of use cases and realize the full potential of hybrid smart contracts. Get hands-on experience with smart contracts, a fast onboarding to the Chainlink tech stack, workshops with top engineers, exposure to blockchain career opportunities, and a chance to win prizes from a total pool of $525k.

 

Past Chainlink hackathons have seen individuals and teams build hybrid smart contract applications that have redefined what dApps can do, from decentralized weather insurance platforms to Tesla API blockchain integrations. For this event, we want to see even more creative applications that leverage the full power of Chainlink solutions. 

Hackathon participants will have an entire month to explore, experiment, and build together, as well as the opportunity to meet top developers from Chainlink Labs, who will be available to check out their work, offer feedback, and give a behind-the-scenes glimpse of what it’s like to build at the cutting edge of the smart contract industry.

The official hackathon runs from October 22nd to November 28th, 2021. See below for more details about the event, including the prizes on offer and potential building opportunities.

 

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 Price Feeds provide a large collection of streaming market data. Developers can currently integrate easy-to-deploy code to retrieve Price Feeds for crypto assets, commodities, FOREX, and more market data, opening up a huge number of potential applications. 

 

If you’re looking to call a specific API or type of data, build a straightforward External Adapter to call the API to your Solidity smart contract. Creating a new External Adapter is a fantastic hackathon project for those new to Chainlink, and can add a unique identity to projects from veteran smart contract developers. 

 

A popular solution for gaming, ticketing, and many other use cases, Chainlink VRF provides developers access to provably random numbers, enabling them to build any type of app that needs transparent and secure RNG (random number generation) on-chain.

 

Creativity is your only limiting factor—Chainlink empowers your smart contracts with any data source you can think of in a secure manner, allowing you to build end-to-end decentralized, secure, and reliable applications.

Register today and gear up with Chainlink 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:

 

If you want to kickstart your blockchain development journey and #BuildWithChainlink to realize the full potential of hybrid smart contracts, sign up below to secure your spot today for the Chainlink Fall 2021 Hackathon. This is our biggest hackathon yet and poised to spur a major wave of innovation across DeFi, the NFT economy, and the larger smart contract ecosystem. As always, we can’t wait to see what you build. 

 

Hackathon Sponsors

Prizes

$572,500 in prizes

Chainlink Grand Prize - $30,000

This is the CHAINLINK HACKATHON WINNER. This project is the one that is the most technical, original, practical, with the best user experience and the biggest WOW factor!

Chainlink Social Impact Prize - $15,000

This is the CHAINLINK HACKATHON SOCIAL IMPACT PRIZE WINNER. This project is the one that is the most technical, original, practical, with the best user experience and the biggest WOW factor - in the context of being a project that helps the good of the world!

To qualify, your project must clearly be a social good, in that it is something that benefits the largest number of people in the largest possible way, such as clean air, clean water, healthcare, and literacy.

Chainlink NFT & Gaming Prize - $15,000

This is the CHAINLINK HACKATHON NFT & GAMING WINNER. This project is the one that is the most technical, original, practical, with the best user experience and the biggest WOW factor - in the context of being an NFT or gaming-related project!

Chainlink DeFi Prize - $15,000

This is the CHAINLINK HACKATHON DEFI WINNER. This project is the one that is the most technical, original, practical, with the best user experience and the biggest WOW factor - in the context of being a DeFi related project!

Chainlink DAO Prize - $15,000

This is the CHAINLINK HACKATHON DAO WINNER. This project is the one that is the most technical, original, practical, with the best user experience and the biggest WOW factor - in the context of being a DAO.

Chainlink Services - First Place - $15,000

This is the Chainlink Services prize! A Chainlink service is something like VRF, Keepers, or Price Feeds, a Chainlink Service that can help all engineers and projects alike using oracles!

To qualify, your project must clearly be a chainlink-powered service that could help other projects in the blockchain space.

Chainlink Services - Second Place - $7,000

This is the Chainlink Services prize! A Chainlink service is something like VRF, Keepers, or Price Feeds, a Chainlink Service that can help all engineers and projects alike using oracles!

To qualify, your project must clearly be a chainlink-powered service that could help other projects in the blockchain space.

Chainlink Services - Third Place - $3,000

This is the Chainlink Services prize! A Chainlink service is something like VRF, Keepers, or Price Feeds, a Chainlink Service that can help all engineers and projects alike using oracles!

To qualify, your project must clearly be a chainlink-powered service that could help other projects in the blockchain space.

Top Quality Project Winners - $1000 x 20

These are projects that didn't make the grand prize, but still, NEED to be shown appreciation! They are technical, original, practical, with great user experience and a huge WOW factor.

Chainlink On the Rise Winners -$500 x 45

These are projects that didn't make the grand prize, but still, NEED to be shown appreciation! They are technical, original, practical, with great user experience and a huge WOW factor, and are up and comers!

Moralis - 1st Place - $10,000

Best use of Moralis Technology!

Moralis - Pooled Prize - $40,000

This is a pooled prize. Pooled prizes are the prizes where a sponsor pays for every project that comply with the criteria equally.

To qualify, you must use Moralis.

UFO Gaming - 1st Place - $30,000

The UFO team is offering prizes to projects that integrates or can integrate into the UFO ecosystem!

Potential integration in our ecosystem:

-Build into our ecosystem. Integrate our native token $UFO or $UAP (or a new game token) to your game.
-NFT model fully supported integrated system. Get help with NFT sales, virtual land sales, etc. This can also include integrating your NFTs as playable characters in your game. The NFTs will be buyable with UFO and ETH currency.
-Get help with general tokenomics and your P2E economics.
-Host tournaments exclusively with UFO. We can bring in professional eSport players to stream a sponsored round. Hosting your own game if it's PVP-based is also a possibility.

1. The game/studio needs to have their own logic build that we can help them with.

The key is that they have their own team of blockchain- and gaming developers, designers, and marketing. However, we will assist in the shape of an advisory but also ecosystem integration.

2. The game/studio needs to take part in a P2E economy. This can be done by integrating their native token with $UFO. This will create a two-token system, making it operate similarly to our game, Super Galactic.

After exchanging detailed information about their studio/game, we'll set up a conversation to see whether it's possible. After that they can potentially integrate into the UFO Gaming ecosystem, using $UFO as part of their base layer. They will have to create their own token to operate with a two-token economy, NFTs, and a virtual land in the Dark Metaverse.

UFO Gaming - 2nd Place - $12,500

The UFO team is offering prizes to projects that integrates or can integrate into the UFO ecosystem! Potential integration in our ecosystem: -Build into our ecosystem. Integrate our native token $UFO or $UAP (or a new game token) to your game. -NFT model fully supported integrated system. Get help with NFT sales, virtual land sales, etc. This can also include integrating your NFTs as playable characters in your game. The NFTs will be buyable with UFO and ETH currency. -Get help with general tokenomics and your P2E economics. -Host tournaments exclusively with UFO. We can bring in professional eSport players to stream a sponsored round. Hosting your own game if it's PVP-based is also a possibility. 1. The game/studio needs to have their own logic build that we can help them with. The key is that they have their own team of blockchain- and gaming developers, designers, and marketing. However, we will assist in the shape of an advisory but also ecosystem integration. 2. The game/studio needs to take part in a P2E economy. This can be done by integrating their native token with $UFO. This will create a two-token system, making it operate similarly to our game, Super Galactic. After exchanging detailed information about their studio/game, we'll set up a conversation to see whether it's possible. After that they can potentially integrate into the UFO Gaming ecosystem, using $UFO as part of their base layer. They will have to create their own token to operate with a two-token economy, NFTs, and a virtual land in the Dark Metaverse.

UFO Gaming - 3rd Place - $5,000

The UFO team is offering prizes to projects that integrates or can integrate into the UFO ecosystem! Potential integration in our ecosystem: -Build into our ecosystem. Integrate our native token $UFO or $UAP (or a new game token) to your game. -NFT model fully supported integrated system. Get help with NFT sales, virtual land sales, etc. This can also include integrating your NFTs as playable characters in your game. The NFTs will be buyable with UFO and ETH currency. -Get help with general tokenomics and your P2E economics. -Host tournaments exclusively with UFO. We can bring in professional eSport players to stream a sponsored round. Hosting your own game if it's PVP-based is also a possibility. 1. The game/studio needs to have their own logic build that we can help them with. The key is that they have their own team of blockchain- and gaming developers, designers, and marketing. However, we will assist in the shape of an advisory but also ecosystem integration. 2. The game/studio needs to take part in a P2E economy. This can be done by integrating their native token with $UFO. This will create a two-token system, making it operate similarly to our game, Super Galactic. After exchanging detailed information about their studio/game, we'll set up a conversation to see whether it's possible. After that they can potentially integrate into the UFO Gaming ecosystem, using $UFO as part of their base layer. They will have to create their own token to operate with a two-token economy, NFTs, and a virtual land in the Dark Metaverse.

Filecoin - $15,000

Filecoin/IPFS Grand Prize: Best use of IPFS and/or Filecoin

Filecoin - $8,500

Social Networking Prize: Best social networking solution using IPFS and/or Filecoin

Filecoin - $4,250 x 2 (2)

web3.storage / nft.storage prize: Best use of web3.storage / nft.storage

Filecoin - Pooled Prize Total - $15,500

Avalanche - 1st Place - $15,000

The projects that use Avalanche the best!

Avalanche - 2nd Place - $5,000

The projects that use Avalanche the best!

Avalanche - Pooled Prize - $5,000

This is a pooled prize. Pooled prizes are the prizes where a sponsor pays every project that uses/integrates their technology equally.

To qualify, you must use Avalanche!

Polygon - Best Gaming DApp $3,000

The best Gaming dapp on Polygon.

To qualify, you must use Polygon.

HECO - $4,000

ENS - $1,000

Google Cloud Platform Prize - $5,000

5,000 worth GCP credits

Ampeforth - $10,000

Armanino - $5,000

This is a pooled prize. Pooled prizes are the prizes where a sponsor pays every project that uses/integrates their technology equally.

Solana - $10,000 (2)

$5k prizes for the 2 teams that best integrate with the Chainlink devnet solution on Solana
https://blog.chain.link/how-to-build-and-deploy-a-solana-smart-contract/

SevenX Ventures - $5,000

3Box Labs - $5,000

Binance - $10,000

Superfluid - $3,500

for the best-collateralized lending protocol that incorporates Superfluid streams and/or instant distribution agreements.

Superfluid - $2,000

for the best use of Superfluid and Chainlink oracles or off chain computation

Superfluid - Pool Prize - $3,000

$3000 pool prize for all projects built on Superfluid that interact with the Superfluid smart contract framework or make use of the Superfluid SDK.

https://www.npmjs.com/package/@superfluid-finance/js-sdk

($3000 will be divided by the number of projects that comply with this criterion)

Women-led Team Prize - $10,000 by Meta Gamma Delta DAO

NFT Port - $5,000

This is a pooled prize.

Pooled prizes are the prizes where a sponsor pays every project that uses/integrates their technology equally.

Consensys - $5,000

Criteria and prize breakdown will be posted later.

Ceramic - $5,000

This is a pooled prize. Pooled prizes are the prizes where a sponsor pays every project that uses/integrates their technology equally.

Sushi - 1st Place Prize - $4,000

Sushi - 2nd Place Prize - $3,000

Sushi - 3rd Place Prize - $1,500

Harmony - 1st Place Prize - $10,000

Best use of Chainlink on Harmony. Open, white space - be super creative and build something useful, elegant, and amazing.

Harmony - Game Prize - $9,000

Best use of Chainlink on Harmony with a special focus on Games - especially play-to-earn games like Axie Infinity.

Harmony - Composable Prize - $3,500

Best combination of Chainlink, Harmony, and using services and protocols from other sponsors.

Polygon - Best DeFi DApp $3,000

The best DeFi dapp on Polygon.

To qualify, you must use Polygon.

Polygon - Best DAO/Tooling DApp $3,000

The best DAO dapp on Polygon.

To qualify, you must use Polygon.

Polygon - Best NFT DApp $3,000

The best NFT dapp on Polygon.

To qualify, you must use Polygon.

Polygon - Best Chainlink VRF DApp $3,000

The best Chainlink VRF dapp on Polygon.

To qualify, you must use Polygon & Chainlink VRF.

Polygon - Best Price Feeds DApp $3,000

The best Price Feeds dapp on Polygon.

To qualify, you must use Polygon & Chainlink Price Feeds.

Polygon - Pooled Prize $7,000 (14)

$500 will be given to the top 14 Polygon projects.

Alchemy - Prize Pool - $20,000

This is a pooled prize. Pooled prizes are the prizes where a sponsor pays every project that uses/integrates their technology equally.

Alchemy Prize - $2,000

Data Node Prizes - 10 * $500 (10)

1 prize will be awarded for using one of the following data providers in your project. 1 award per data provider.

Associated Press: AP race calls for the Nov 2, 2021 US elections.
Node Launching Soon!

Accuweather: Current weather by geolocation.
Node Launching Soon!

Enetscores: Euro Football Leagues schedules and game scores
https://market.link/data-providers/27fe7b72-7508-429c-a1bc-b9372631c525/integrations

ProspectNow: This oracle will initially provide the average price per square foot of residential real estate for the last quarter, given a specific ZIP Code.
https://market.link/data-providers/c8fc4b66-66a5-4e24-8d11-85d19553c03c/integrations

SmartZip: Initially, this oracle will return a given home's value calculated by SmartZip's patented Automated Valuation Model (AVM).
https://market.link/data-providers/7c5a6a8c-5008-4f5f-8914-6264f45bff61/integrations

QDT: This oracle will initially leverage Quantum ML to offer Bitcoin price predictions.
https://market.link/data-providers/9bc939d0-1176-4b5b-a004-8b6eda16dca1/integrations

Connexun: This oracle will initially provide sentiment analysis on leading cryptoassets over the last 1-24 hours.
https://market.link/data-providers/9f312cf0-d6c4-4d3c-9538-da9877f24324/integrations

T3 Index: This oracle will initially provide real-time, historical end-of-day, and historical tick level values for the BitVol, EthVol, and SPIKES implied volatility products
https://market.link/data-providers/a4031f9a-92ab-4209-a700-aca37a223fb1/integrations

Venrai: This oracle delivers Venrai's source-signed compliance data directly on-chain, allowing users to query whether a given Ethereum, Ethereum Classic or Tether address appears on the OFAC Sanctions List
https://market.link/data-providers/6490ce7d-d67a-4562-a145-dfd75bc5bd08/integrations

Sportsdata.IO: This oracle will initially provide odds for a specific MLS League game given the team's name and the game's date up to a week out.
https://market.link/data-providers/d66c1ec8-2504-4696-ab22-6825044049f7/integrations

NEAR Prize - 1st Place - $5,000

Create a connector that allows moving native NEAR NFTs back and forth from NEAR to Ethereum using Rainbow Bridge. The implementation should leverage the rainbow bridge to make this a trustless connector. Anyone should be able to move their assets without requiring to interact with any centralized service (other than maybe a frontend).

NEAR & Aurora Prize - 1st Place - $5,000

Create a contract that allows moving NFTs back and forth between NEAR and Aurora. Any sort of bridge or cross-chain communication is not required for this task. The connector design can be locking and minting in the same step, and the same with burning and unlocking. This can be done using cross-contract calls on NEAR contracts.

NEAR Prize - 2nd Place - $3,750

Create a connector that allows moving native NEAR NFTs back and forth from NEAR to Ethereum using Rainbow Bridge. The implementation should leverage the rainbow bridge to make this a trustless connector. Anyone should be able to move their assets without requiring to interact with any centralized service (other than maybe a frontend).

NEAR & Aurora Prize - 2nd Place - $3,750

Create a contract that allows moving NFTs back and forth between NEAR and Aurora. Any sort of bridge or cross-chain communication is not required for this task. The connector design can be locking and minting in the same step, and the same with burning and unlocking. This can be done using cross-contract calls on NEAR contracts.

NEAR Prize - 3rd Place - $2,500

Create a connector that allows moving native NEAR NFTs back and forth from NEAR to Ethereum using Rainbow Bridge. The implementation should leverage the rainbow bridge to make this a trustless connector. Anyone should be able to move their assets without requiring to interact with any centralized service (other than maybe a frontend).

NEAR & Aurora Prize - 3rd Place - $2,500

Create a contract that allows moving NFTs back and forth between NEAR and Aurora. Any sort of bridge or cross-chain communication is not required for this task. The connector design can be locking and minting in the same step, and the same with burning and unlocking. This can be done using cross-contract calls on NEAR contracts.

HECO - $3,000

HECO - $1,500

HECO - $1,500 - Pooled Prize

Devpost Achievements

Submitting to this hackathon could earn you:

Requirements

Each project must use Chainlink in some form to make a state change on a blockchain. This means that a front end simply reading from Chainlink data feeds doesn't count. Using one of Chainlink Data Feeds, Chainlink VRF, Chainlink Keepers, or Chainlink API Calls count. 

Projects must have been created during the duration of the hackathon, and not previously. Improvements on existing projects are acceptable, so long as the improvement project is clearly stated. 

Judges

Sergey Nazarov

Sergey Nazarov
Co-Founder / Chainlink Labs

Austin Griffith

Austin Griffith
builder / Ethereum

Ivan Liljeqvist

Ivan Liljeqvist
CEO, Moralis

Allen Day

Allen Day
Developer Advocate / Google Cloud

Gabriel Cardona
Developer Evangelist / Avalanche

Sarang Parikh

Sarang Parikh
Core Developer / Sushiswap

Matty Taylor

Matty Taylor
Head of Growth / Solana

Patrick Collins

Patrick Collins
Developer Advocate / Chainlink Labs

Longfei Wang

Longfei Wang
IPFS / Filecoin

Pan

Pan
IPFS/Filecoin

Stephen Fluin
Head of Developer Relations, Chainlink Labs

Brantly Millegan
Director of Operations / ENS

Jorropo

Jorropo
DevRel / IPFS/Filecoin

Sandipan Kundu
Developer Evangelist / Polygon

Yusef Napora

Yusef Napora
Engineer / Filecoin /IPFS

Brandon Iles
CTO / Fragments Inc. / Ampleforth Protocol

Antoinette Marie
Heifer International

Antoni Hryniewiecki

Antoni Hryniewiecki
0xHack by TrustToken

Devon Yarbrough

Devon Yarbrough
Tech Leader / EY

Xiangan He

Xiangan He
Polygon

Guillaume Palayer

Guillaume Palayer
CEO / 88mph

Henry Rõigas

Henry Rõigas
NFTPort

Johannes Tammekänd

Johannes Tammekänd
NFTPort

Martin Abbatemarco

Martin Abbatemarco
OpenZeppelin

Scott Thiel

Scott Thiel
TOKO Limited

UFoger

UFoger
CEO / UFO Gaming

Samy Karim

Samy Karim
Binance Smart Chain

David Nage

Arun Maharajan
UNICEF

Samuel Flamini
Superfluid

Francesco Andreoli

Francesco Andreoli
Consensys

Gao Qing Chen

Gao Qing Chen
HECO

Jenny Sun

Jenny Sun
7xvc

Yulian Lavysh

Yulian Lavysh
Aurora

Judging Criteria

  • User Experience / User Interface
    How useable is your project? Does it look nice? Does it accomplish what it's set out to do in an easy to use and approachable way?
  • Originality / Uniqueness
    Has this project been done before? Is it unique?
  • Technicality
    How difficult is the problem you're solving? How many moving parts? Did you build it in an efficient manner? Did you give it too many moving parts? How clean is the code?
  • Practicality
    Is this something people will want to use? Does this have business value? Is this something that could grow and have a mass following?
  • Wow factor
    Some buffer judging points for anything not captured in the above pieces of criteria!

Questions? Email the hackathon manager

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