Smart contract developers are reinventing applications in finance, gaming, insurance, art, and more by creating a system that executes contracts based on mathematical certainty. Chainlink oracles deliver high-quality data from APIs and other data sources into smart contract applications, whether it’s receiving off-chain market data to trigger a DeFi smart contract or calling your Tesla to unlock the doors remotely, there are limitless possibilities for developers to build new decentralized applications with data from Chainlink oracles.

This Spring’s Chainlink Virtual Hackathon will jumpstart these new projects from smart contract developers with all levels of experience. We want to see creative smart contract applications that use Chainlink’s secure oracle solution to bring real-world data onto the blockchain. Get hands-on experience with smart contracts, a fast onboarding to the Chainlink tech stack, workshops with engineers from top DeFi projects, exposure to blockchain career opportunities, and a chance to win hackathon prizes.

The official hack dates run from March 15th to April 11th, 2021. Read on to find out more details about the event, prizes, and opportunities building in the Chainlink Virtual Hackathon.

What is Chainlink?

Chainlink is a decentralized oracle network that enables smart contracts to securely access off-chain data such as web APIs, enterprise systems, IoT devices, payment systems, other blockchains, and more. One of the most-used oracle solutions is the large collection of streaming market data. You can currently integrate easy-to-deploy code to get Price Feeds for crypto assets, commodities, FOREX, and more market data through Chainlink’s price data oracles.

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 hackers new to Chainlink, and can add a unique identity to projects from veteran smart contract developers.

Another popular solution for gaming, ticketing, and other uses is Chainlink VRF, which provides oracle functionality for generating provably fair random numbers to build any type of app that needs transparent and secure RNG (random number generation).

Creativity is your only limiting factor as Chainlink empowers your smart contracts with any data source you can think of. Chainlink also provides you with a way to secure this connection, allowing you to build end-to-end decentralized, secure, and reliable applications.

Community & Dedicated Support

Hackers will have direct access to top engineers in DeFi through Discord groups, workshops, and tutorials. The Chainlink Discord is the main location to network and find teammates (1-5 people per team) to build your project or help hack on someone else’s.

To help you maximize the success of your projects, Chainlink will provide participants with help finding team members and experienced mentors, a plethora of educational materials for learning about off-chain connectivity, live workshops showcasing how to use Chainlink, and much more. Join our hackathon Discord to meet other hackers and start planning today!

We also encourage you to use the latest pre-built and proven Chainlink resources such as the popular Defi reference data sets for popular asset price pairs, and Chainlink VRF to implement verifiable random functionality into your smart contracts, Dapps, and NFT projects.

Judges from top projects across the blockchain space will review your work. This is an opportunity to win prizes and get your work in front of the most promising projects in decentralized technology. Many hackers have used Chainlink Hackathons to start work with top projects or launch their own entrepreneurial enterprise or DAO.

Getting Started

The first step is the biggest — REGISTER NOW to set yourself up for success.

Join the Discord.

Start exploring the massive list of resources and start planning your hack.

Eligibility

Teams must have no more than 5 hackers
No geographic restrictions on hackers

Requirements

Submissions should include

A project description (approximately 200 words)
5-minute video demo
A link to GitHub/GitLab/code repository
Optional: a link to a working demo

To qualify for the Chainlink Hackathon prizes

You must successfully use Chainlink oracles/price feeds, and the data fetched by the oracle must trigger a state change in the smart contract.
Your entry must abide by the overall hackathon rules.
While you may plan ahead of time, all code for your project must be written during the event.
You cannot steal another team’s source code, and you must certify that all code and presentations you submit are your own work.

For sponsorship prizes, to be eligible for their prizes you must use the technology mentioned in the prizes section. If you're unsure if you qualify, please reach out to their sponsorship channel in the Discord.

For layer 1 prizes:
You must submit your project and a description on why the layer 1 you chose was the best. Also you can't just redeploy to multiple chains and submit to all. There must be a good reason to use the layer 1's you're using.

Hackathon Sponsors

Prizes

$134,300 in prizes

Grand Prize - $8,000

$8000 in LINK to the overall best project that makes use of Chainlink in a unique and compelling way.

Social Impact Prize - $5,000

$5000 in LINK to the top prize for the Chainlink-connected project that makes a humanitarian impact. Read more: https://blog.chain.link/introducing-the-social-impact-prize-at-the-spring-2021-chainlink-virtual-hackathon/

Government Tech Prize - $5,000 (2)

$5000 in LINK to the top prize for projects that use Chainlink solutions to build out government tech solutions. Read more: https://blog.chain.link/introducing-the-govtech-prize-at-the-chainlink-virtual-hackathon/

DeFi prize - $3,000

$3000 in LINK to the top prize for projects that use Chainlink oracles for a decentralized financial application.

NFT & Gaming Prize - $3,000

$3000 in LINK to the top prize for a smart contract NFT or gaming project that leverages Chainlink solutions.

Open Prize - $3,000

$3000 in LINK to the top prize for projects that use Chainlink solutions to build out the open-source internet.

Runner Up Prizes - $500 (20)

$500 in LINK to 14 Runner-Up projects.

Solana Prize - $10,000

1 prize of $10,000

Submission Ideas
- PR to the Flux aggregator: https://github.com/octopus-network/solana-flux-aggregator
- UI changes or updates. End to end demo that connects flux aggregator to scaffolding: https://github.com/solana-labs/dapp-scaffold
All submissions must be open source

Website: https://solana.com/

Injective Protocol Prize - $10,000

1st place = $5000 2nd place = $3000 3rd place = $2000

Track 1:
Connect Your Cosmos chain to the Outside World
- Connect ChainLink Price Feed to cosmos by deploying contracts on Ethermint. (Can use InjectiveEVM as well)

Track 2:
Cosmos native Auction module
- Auction any asset on cosmos. (ERC20, NFT, validator/ delegator stake etc)

Track 3:
OCR on Cosmos
- Create a cosmos module to integrate with ChainLink Price Feed. Extra points for using Chainlink Off-Chain Reporting to provide Price Feed.

Track 4:
Any Cosmos module!

Wesbite: https://injectiveprotocol.com/

Acala Prize - $5,000

Acala Challenges - Chainlink Hackathon Spring 2021

Challenge 1: Deploy a DApp on Acala/Polkadot using the Acala EVM

Prize: $1500

Resources/Links: https://wiki.acala.network/general/acala-hacker-guide

Challenge 2: Build a DApp on Polkadot using Acala’s EVM with and the On-chain Automatic Scheduler Function (Major plus if you integrate oracles). On testnet, this will be a generic oracle, but in the future, devs will have the ability to integrate Chainlink.

Prize: $3500

Resources/Links: https://wiki.acala.network/general/acala-hacker-guide

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Requirements + Judging: See Details in the Acala channel of the Hackathon Discord server

Synthetix community favourite - $2,500

Additional $SNX prizes will also be available (depending on the number of participating projects):

- Synthetix community favourite - $2,500.00 in SNX (Voted by grantsDAO)

Synthetix - Best mobile friendly - $2,500

Additional $SNX prizes will also be available (depending on the number of participating projects):

- Best Mobile friendly - $2,500.00 in SNX

DODO - Best Trading Card Widget Prize - $6,000

$6,000 for the best trading card widget.

Website: https://dodoex.io/

DODO - Best Trading Bot - $2,000

$2,000 for the project who creates a bot that tracks DODO price advantage and tweets about it in real-time.

Website: https://dodoex.io/

Moonbeam Prize - $3,000

1st place = $3000

The Moonbeam Challenge is an excellent opportunity to try the Chainlink oracle in Moonbeam! To participate, you need to do the following:

- Integrate Chainlink in your application and deploy it to our TestNet, Moonbase Alpha.
- Write about your experience using the Chainlink oracle in Moonbeam! We love feedback and want to know more about your experience and suggestions you may have.
- Projects must not be forks.

Helpful resources:
- See this technical workshop about Using Solidity Smart Contracts with Chainlink Oracles on Moonbeam: https://www.youtube.com/watch?v=D7jSNYrTNMY.
- Visit our docs site to know how to get started in Moonbeam: https://docs.moonbeam.network/. You will also find more information about the Chainlink integration on Moonbeam: https://docs.moonbeam.network/integrations/oracles/chainlink/.

Polkadot / Web3 Prize - $5,000

1st place = $2500, 2nd place = $1,500, 3rd Place = $1,000

Requirements
- The solution has to be built for the Polkadot ecosystem (including Kusama and Substrate)
- If you are submitting a pre-built project, please clearly indicate which upgrades have been built during the hackathon. You will only be judged on that.
- Open source code with a link to the repository
- If you are submitting a Substrate chain provide a live running site or running chain and provide an endpoint
- 150 word submission description (can be within the repo's readme). Ideally the submission comes with a video walkthrough and/or demo
- All submission materials must be in English

Website: https://polkadot.network/

RSK Prize - $4,000

$4000 as 4x $1000 prizes

Win up to $4000 for a project that deploys on RSK and implements an integration with Money on Chain, RIF on Chain, Sovryn, or RskSwap ($1000 each)

3 high level requirements for a submission to qualify:
1. Use Chainlink
2. Deploy on RSK Testnet or Mainnet
3. Integrate with a DeFi protocol: Sovryn/ Money on Chain/ RIF on Chain/ RskSwap

Note that each DeFi protocol may include a list of suggested ideas or projects to work on, however you are always welcome to submit your own original ideas!

Please join us on Slack to ask any questions!
https://developers.rsk.co/slack

88mph Prize - $3,500

1st Place: $2,000
2nd Place: $1,000
3rd Place: $500

These prizes are designed to be a catch-all for your best ideas! All applications related to the 88mph ecosystem are welcome, as long as your project contributes to the 88mph ecosystem or helps in some way.
Anything that:
- integrates 88mph with Chainlink and vice versa.
- encourages more participation in the 88mph products.
- increases engagement with 88mph and Chainlink.
Let your imagination run wild and get rewarded!

Website: https://88mph.app

Consensys Infura Project Prize - $1,500

$1500 for the Infura Project Winner

Bounty Video:
https://www.dropbox.com/s/dfk98h34sd60nbm/Chainlink2021-ConsensysBounties.mp4?dl=0

PRODUCT BOUNTIES
INFURA
We have recently released Infura Transaction Service (ITX). It is a high-throughput relayer that is optimised to reliably send transactions to the Ethereum mainnet in a timely manner while ensuring all transactions do not needlessly overpay the network fee. It is a simple API that is easy to plug-and-play for most projects.

This bounty focuses on integrating ITX with the Chainlink Oracle system (node). The final solution should allow node operators to activate ITX via a config file (or an additional parameter) at the command line. Once it is turned on, all transactions for the oracle will be sent via the ITX service.

We hope this integration will help Chainlink fall from the Top 25 Leaderboard on EthGasStation for services that pay the most network fees in Ethereum and thus reduce the largest cost of being a Chainlink operator.

Consensys CODEFI Project Prize - $1,500

$1500 for the CODEFI Project Winner

Bounty Video:
https://www.dropbox.com/s/dfk98h34sd60nbm/Chainlink2021-ConsensysBounties.mp4?dl=0

PRODUCT BOUNTIES
CODEFI
We have added support for NFTs in the Assets API. This allows anyone to mint/burn/transfer ERC721 tokens via simple API calls.

This bounty focuses on integrating the Assets API with Chain Link Oracle service. The final solution should allow the minting of NFTs according to real life events. For example, the minting of an NFT commemorating Sports events or important News events.

The goal of this integration is to better connect real world events to the Blockchain.

Arbitrum Prize - $1,000

$1K USD to the team that best uses Arbitrum

Get Started: https://developer.offchainlabs.com/docs/developer_quickstart

Armanino Prize - $1,000

1st place = $1000

Requirements
Must use a Chainlink Proof of Reserve feed
Bonus points if using Armanino's - https://data.chain.link/tusd-por

Plasm Prize - $1,000

1st place = $3000, 2nd place = $1,500, 3rd Place = $500

Requirements
Must deploy contracts on Plasm Network

Website: https://www.plasmnet.io/

ENS Prize - $300 (2)

ENS Prizes
$150 of ETH to each of the best 2 projects to use ENS.

Requirements
Must use ENS in some way

Website: https://ens.domains/

Tiingo End of Day Equity Price Oracle Prize - $500

$500 prize to the winning submission for using the Tiingo End of Day Equity data oracle in their project.

GeoDB Geolocation Oracle Prize - $500

$500 prize to the winning submission for using the GeoDB Geolocation data oracle in their project.

TheRunDown Sports Results Oracle Prize - $500

$500 prize to the winning submission for using the TheRunDown Sports Results data oracle in their project.

DNS Lookup Oracle using the Google DNS Service Prize - $500

$500 prize to the winning submission for using the DNS Lookup Oracle using the Google DNS Service data oracle in their project.

WatchSignals Luxury Watch Price Oracle Prize - $500

$500 prize to the winning submission for using the WatchSignals Luxury Watch Price Oracle in their project.

Dapp University Course (4)

If you’re just entering the space, you can enter your project to be rewarded with a course from Dapp University, and each developer with a valid project submission will receive a 1 LINK bounty.

IPFS / Filecoin Prize #1 - $1,000

- Best use of Chainlink for archiving or republishing data for provenance or archiving to combat dis/misinformation

IPFS / Filecoin Prize #2 - $1,000

- Best tool for easing storing and retrieval of data with Filecoin for use in Chainlink or oraclizing Filecoin chain events

IPFS / Filecoin Prize #3 - $1,000

- Best use of IPFS or Filecoin for NFTs - maybe it's archiving, maybe it's provenance connections, maybe it's aggregation, maybe it's tooling, maybe it's up to you.

IPFS / Filecoin Prize #4 - $1,000

- Best IPFSizing of HTTP data - Chainlink is often used to pull data from the regular web, why not autopublish to IPFS while you're there?

IPFS / Filecoin Prize #5 - $1,000

- Best Hack We'll Use Every Day that uses IPFS, Filecoin or Libp2p

Aave Prize Winner - $3,000

Aave Prizes
1st place= 3k aUSDC

Website: https://aave.com/
Docs: https://docs.aave.com/portal/

Requirements: Uses Aave in your project

Aave Prize Runner Up - $2,000

Aave Prize Runner Up - $2,000 aUSDC

Aave Prize Third Place - $1,000

Aave 3rd Place Winner - $1,000 aUSDC

Polygon Grand Prize - $2,500

Polygon (previously Matic) team will be awarding a total of $5,000 (USDT) to devs who BUILD their hacks on Polygon:
1st Prize - $2500 (USDT)

Judging Criteria
The following factors will be considered when deciding winners:
1) Originality of the idea
2) User experience (good design, intuitive, easy to use)

Polygon 3rd Place Prize - $1,000

Polygon (previously Matic) team will be awarding a total of $5,000 (USDT) to devs who BUILD their hacks on Polygon:
3rd Prize - $1000 (USDT)

Judging Criteria
The following factors will be considered when deciding winners:
1) Originality of the idea
2) User experience (good design, intuitive, easy to use)

Polygon Runner Up Prize - $1,500

Polygon (previously Matic) team will be awarding a total of $5,000 (USDT) to devs who BUILD their hacks on Polygon:
2nd Prize - $1500 (USDT)

Judging Criteria
The following factors will be considered when deciding winners:
1) Originality of the idea
2) User experience (good design, intuitive, easy to use)