A developer-ready zk-rollup for scaling Ethereum dapps, powered by ConsenSys.
A developer-ready zk-rollup for scaling Ethereum dapps, powered by ConsenSys.

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The Importance and Mechanics of Lending & Borrowing in DeFi
Lending and borrowing are the core of decentralized finance (DeFi). For the ecosystem, they provide liquidity to the market, ensure that capital is being used efficiently, and are the springboard for innovative products such as flash loans. For users, lending and borrowing provide them with traditional finance tools such as interest and liquidity, with all the added benefits of decentralization. Let’s look at the details of how lending and borrowing work in DeFi, the key terms you need to kno...

Testnet Voyage LXP Drop Is Here
This week our team is excited to make the largest and most anticipated LXP drop in Linea’s history for some of the biggest OGs. The Testnet Voyage Campaign dates back to May 2023 when our network was just getting started and Linea Goerli struggled mightily to keep up with the enthusiasm and persistence of community members who joined Linea's inaugural campaign. In recognition of these efforts, community members received Voyage NFTs distributed in five categories—Alpha, Beta, Gamma, Delta...

How to Build a Decentralized Voting Dapp on Linea
Blockchain and web3 have changed our understanding of transparency, trust and decentralization. One of the most incredible use-case for this technology is the development of web3 dapps (decentralized applications) that offers solutions that are secure, verifiable and tamper-proof solutions to our everyday challenges. Among all the use-cases, decentralized voting stands out. Decentralized technologies remove middlemen and ensure transparent vote counts, this voting dapp has the potential to ch...

The Importance and Mechanics of Lending & Borrowing in DeFi
Lending and borrowing are the core of decentralized finance (DeFi). For the ecosystem, they provide liquidity to the market, ensure that capital is being used efficiently, and are the springboard for innovative products such as flash loans. For users, lending and borrowing provide them with traditional finance tools such as interest and liquidity, with all the added benefits of decentralization. Let’s look at the details of how lending and borrowing work in DeFi, the key terms you need to kno...

Testnet Voyage LXP Drop Is Here
This week our team is excited to make the largest and most anticipated LXP drop in Linea’s history for some of the biggest OGs. The Testnet Voyage Campaign dates back to May 2023 when our network was just getting started and Linea Goerli struggled mightily to keep up with the enthusiasm and persistence of community members who joined Linea's inaugural campaign. In recognition of these efforts, community members received Voyage NFTs distributed in five categories—Alpha, Beta, Gamma, Delta...

How to Build a Decentralized Voting Dapp on Linea
Blockchain and web3 have changed our understanding of transparency, trust and decentralization. One of the most incredible use-case for this technology is the development of web3 dapps (decentralized applications) that offers solutions that are secure, verifiable and tamper-proof solutions to our everyday challenges. Among all the use-cases, decentralized voting stands out. Decentralized technologies remove middlemen and ensure transparent vote counts, this voting dapp has the potential to ch...
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The city that never sleeps when it comes to pushing the boundaries. Home to the largest stock exchange and traditional financial institutions, New York is rich in history and significance. But New York is also the dynamic hub of change to be reckoned with. A nurturing ground for disrupting the way we think, shaping how we engage with this new world - and reimagining a decentralized, distributed future. Join us from September 22-24 in one of the most iconic cities in the world. Hack with some of the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem. We hope the stunning views of Pier Sixty will inspire you to try your best as you get a chance to win over $450,000 USD in prizes!
This second iteration of the Transaction Insights API, defined in SIP-11, brings about the notion of severity. It allows your snap to flag an insight as critical, prompting the user for additional confirmation.
We want to see you build any innovative transaction insights snap using this new feature.
Requirements:
Code needs to be viewable on GitHub
Include a README that describes how to install and use the snap
Code should be runnable by our judges
Each submission should have a short video that describes scope and functionality of the snap
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
Use the MetaMask SDK in your code
In an effort to increasingly modularize the wallet and allow for resolution beyond ENS, we decided to open up domain and address resolution to snaps!
We want to see you build an innovative domain resolution snap for the chain(s) of your choice.
Requirements:
Code needs to be viewable on GitHub
Include a README that describes how to install and use the snap
Code should be runnable by our judges
Each submission should have a short video that describes scope and functionality of the snap
Criteria
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
PLEASE NOTE: Using the SDK is not the standard way of interacting with MetaMask that you might be familiar with. Please check our dev guide and examples page to get familiarized with it. Any project that does not use the SDK will not be eligible for prizes.
Develop an outstanding decentralized application (dapp) that uses the MetaMask SDK for secure and seamless integration with our mobile wallet. We are interested in any sort of creative solution you could think of, but if you need some ideas things we particularly like are:
NFT/Gaming - Create a project in the realm of NFTs or web3 gaming, which involves innovative utilization of NFTs, enhances wallet interactions within games, or tackles any of the difficulties in the current gaming landscape. You can also check our “Unity SDK” LINK
DeFi - Create a dapp that enhances the DeFi ecosystem, such as new protocols, enhancing existing derivatives, ecosystem tools, application of NFTs in DeFi, better financial inclusion, DAOs.
Social: Create a project that combines social aspects to decentralization, such as p2p messaging dapps, marketplaces, content creators tools, social proof validation.
*If you are building a React application we encourage you to use our React companion libraries for state management, which can be found in our SDK links section.
Your Dapp should demonstrate innovation, functionality, and a compelling user experience . The winning submissions will highlight the potential of the MetaMask SDK and offer compelling solutions within their respective categories.
Beyond your winnings, you have the opportunity to work alongside Consensys post-hackathon to apply for a MetaMask Grant program. We want to build with you, and with a well-fleshed-out submission, we can help you take your idea to the next level, finish those features you couldn’t get to, or take your project to production.
Requirements:
Derp: Repos must contain a text file named “nyc.txt” with the phrase “New New York Big City of Dreams”
This attention to detail helps us reward genuine effort and identify quality projects.
Code needs to be viewable on GitHub
Each submission should have a short video that describes scope and functionality of the dapp
We encourage you to have a detailed README that helps the judge know the details about your project, what technology has been utilized as well as which ConsenSys tools like SDK have been used to what extent.
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category.
Bonus points for number of Consensys products used (nfura, and Linea)
Deploying on Linea is exactly the same as deploying on Ethereum! All you have to do to be eligible is deploy a smart contract.
Consider forking our boilerplate code to see what a robust, winning project would look like: https://github.com/Consensys/Form-XChange
Linea is an EVM equivalent zk-rollup that offers faster finality and low gas fees to help you scale your dapps. Learn more at https://linea.build/.
Beyond your winnings, you have the opportunity to work alongside ConsenSys post-hackathon to apply for a MetaMask Grant program. We want to build with you, and with a well-fleshed-out submission, we can help you take your idea to the next level, finish those features you couldn’t get to, or take your project to production.
Requirements:
In your GitHub README
Paste a link to the deployed contract address on Lineascan
Linea network configured in your code
Code needs to be viewable on GitHub
Each submission should have a short video that describes scope and functionality of the dapp
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
Bonus points for number of Consensys products used (Infura, and MetaMask)
Verax is a shared, public attestation registry that can be used by dapps to store attestations that can be easily accessed and composed together by anyone that's interested.
We want you to build a subgraph indexing Verax data and an optional dashboard that visualizes that data.
Read more about Verax here: https://verax.gitbook.io/verax/
Continuing Grant: Winners moving forward can work with the Linea team to further build out this public good with support from our grant program.
Requirements:
Find the full spec here: https://docs.google.com/document/d/1zukSdc4QoMNS6FvZ3-A1o6OmT6qRDEyeavFvdxRIJJ4/edit?usp=sharing
Deliverable:
Create a Subgraph using The Graph that indexes all event logs from Verax’s four contracts and exposes a number of queries to obtain useful information from the data.
Optional bonus points:
Create a dashboard that shows visualizations of high level statistics for Verax, from data obtained from the smart contracts using the subgraph.
Criteria:
Technical sophistication
Imaginative and useful queries that are useful to consumers of the data
Information visualizations (optional bonus points)
We want to see you build the next decentralized chat, identity, or social media dapp on Linea, an EVM equivalent zk-rollup.
Build with a social/identity protocol (i.e. XMTP, Push, and Lens) and deploy a smart contract on Linea to be eligible.
XMTP and Lens are sponsoring prizes too! Building with them means you can submit to their bounties as well.
Beyond your winnings, you have the opportunity to work alongside ConsenSys post-hackathon to apply for a MetaMask Grant program. We want to build with you, and with a well-fleshed-out submission, we can help you take your idea to the next level, finish those features you couldn’t get to, or take your project to production.
Requirements:
In your GitHub README
Paste a link to the deployed contract address on Lineascan
Linea network configured in your code
What social or identity protocol you used to qualify
Code needs to be viewable on GitHub
Each submission should have a short video that describes scope and functionality of the dapp
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
Bonus points for number of Consensys products used (Infura, and MetaMask)
This workshop is happening in-person
🛠️ MetaMask Snaps Workshop
Time: 03:20 PM EDT – Sep 22, 2023
Location: Workshop Room 2
Workshop description

MetaMask Snaps
MetaMask SDK
MetaMask SDK: https://metamask.io/sdk/
MetaMask SDK Code Examples:https://github.com/MetaMask/metamask-sdk/tree/main/packages/examples/MetaMask Unity SDK Documentation:https://docs.metamask.io/wallet/how-to/use-sdk/unity/
MetaMask ReactNative SDK Documentation:https://docs.metamask.io/wallet/how-to/use-sdk/react-native/
MetaMask JavaScript/React SDK Documentation:https://docs.metamask.io/wallet/how-to/use-sdk/
SDK React Workshop Example:https://github.com/MetaMask/react-sdk-linea-workshop
React Hooks:https://www.npmjs.com/package/@metamask/sdk-react
Linea
The city that never sleeps when it comes to pushing the boundaries. Home to the largest stock exchange and traditional financial institutions, New York is rich in history and significance. But New York is also the dynamic hub of change to be reckoned with. A nurturing ground for disrupting the way we think, shaping how we engage with this new world - and reimagining a decentralized, distributed future. Join us from September 22-24 in one of the most iconic cities in the world. Hack with some of the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem. We hope the stunning views of Pier Sixty will inspire you to try your best as you get a chance to win over $450,000 USD in prizes!
This second iteration of the Transaction Insights API, defined in SIP-11, brings about the notion of severity. It allows your snap to flag an insight as critical, prompting the user for additional confirmation.
We want to see you build any innovative transaction insights snap using this new feature.
Requirements:
Code needs to be viewable on GitHub
Include a README that describes how to install and use the snap
Code should be runnable by our judges
Each submission should have a short video that describes scope and functionality of the snap
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
Use the MetaMask SDK in your code
In an effort to increasingly modularize the wallet and allow for resolution beyond ENS, we decided to open up domain and address resolution to snaps!
We want to see you build an innovative domain resolution snap for the chain(s) of your choice.
Requirements:
Code needs to be viewable on GitHub
Include a README that describes how to install and use the snap
Code should be runnable by our judges
Each submission should have a short video that describes scope and functionality of the snap
Criteria
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
PLEASE NOTE: Using the SDK is not the standard way of interacting with MetaMask that you might be familiar with. Please check our dev guide and examples page to get familiarized with it. Any project that does not use the SDK will not be eligible for prizes.
Develop an outstanding decentralized application (dapp) that uses the MetaMask SDK for secure and seamless integration with our mobile wallet. We are interested in any sort of creative solution you could think of, but if you need some ideas things we particularly like are:
NFT/Gaming - Create a project in the realm of NFTs or web3 gaming, which involves innovative utilization of NFTs, enhances wallet interactions within games, or tackles any of the difficulties in the current gaming landscape. You can also check our “Unity SDK” LINK
DeFi - Create a dapp that enhances the DeFi ecosystem, such as new protocols, enhancing existing derivatives, ecosystem tools, application of NFTs in DeFi, better financial inclusion, DAOs.
Social: Create a project that combines social aspects to decentralization, such as p2p messaging dapps, marketplaces, content creators tools, social proof validation.
*If you are building a React application we encourage you to use our React companion libraries for state management, which can be found in our SDK links section.
Your Dapp should demonstrate innovation, functionality, and a compelling user experience . The winning submissions will highlight the potential of the MetaMask SDK and offer compelling solutions within their respective categories.
Beyond your winnings, you have the opportunity to work alongside Consensys post-hackathon to apply for a MetaMask Grant program. We want to build with you, and with a well-fleshed-out submission, we can help you take your idea to the next level, finish those features you couldn’t get to, or take your project to production.
Requirements:
Derp: Repos must contain a text file named “nyc.txt” with the phrase “New New York Big City of Dreams”
This attention to detail helps us reward genuine effort and identify quality projects.
Code needs to be viewable on GitHub
Each submission should have a short video that describes scope and functionality of the dapp
We encourage you to have a detailed README that helps the judge know the details about your project, what technology has been utilized as well as which ConsenSys tools like SDK have been used to what extent.
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category.
Bonus points for number of Consensys products used (nfura, and Linea)
Deploying on Linea is exactly the same as deploying on Ethereum! All you have to do to be eligible is deploy a smart contract.
Consider forking our boilerplate code to see what a robust, winning project would look like: https://github.com/Consensys/Form-XChange
Linea is an EVM equivalent zk-rollup that offers faster finality and low gas fees to help you scale your dapps. Learn more at https://linea.build/.
Beyond your winnings, you have the opportunity to work alongside ConsenSys post-hackathon to apply for a MetaMask Grant program. We want to build with you, and with a well-fleshed-out submission, we can help you take your idea to the next level, finish those features you couldn’t get to, or take your project to production.
Requirements:
In your GitHub README
Paste a link to the deployed contract address on Lineascan
Linea network configured in your code
Code needs to be viewable on GitHub
Each submission should have a short video that describes scope and functionality of the dapp
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
Bonus points for number of Consensys products used (Infura, and MetaMask)
Verax is a shared, public attestation registry that can be used by dapps to store attestations that can be easily accessed and composed together by anyone that's interested.
We want you to build a subgraph indexing Verax data and an optional dashboard that visualizes that data.
Read more about Verax here: https://verax.gitbook.io/verax/
Continuing Grant: Winners moving forward can work with the Linea team to further build out this public good with support from our grant program.
Requirements:
Find the full spec here: https://docs.google.com/document/d/1zukSdc4QoMNS6FvZ3-A1o6OmT6qRDEyeavFvdxRIJJ4/edit?usp=sharing
Deliverable:
Create a Subgraph using The Graph that indexes all event logs from Verax’s four contracts and exposes a number of queries to obtain useful information from the data.
Optional bonus points:
Create a dashboard that shows visualizations of high level statistics for Verax, from data obtained from the smart contracts using the subgraph.
Criteria:
Technical sophistication
Imaginative and useful queries that are useful to consumers of the data
Information visualizations (optional bonus points)
We want to see you build the next decentralized chat, identity, or social media dapp on Linea, an EVM equivalent zk-rollup.
Build with a social/identity protocol (i.e. XMTP, Push, and Lens) and deploy a smart contract on Linea to be eligible.
XMTP and Lens are sponsoring prizes too! Building with them means you can submit to their bounties as well.
Beyond your winnings, you have the opportunity to work alongside ConsenSys post-hackathon to apply for a MetaMask Grant program. We want to build with you, and with a well-fleshed-out submission, we can help you take your idea to the next level, finish those features you couldn’t get to, or take your project to production.
Requirements:
In your GitHub README
Paste a link to the deployed contract address on Lineascan
Linea network configured in your code
What social or identity protocol you used to qualify
Code needs to be viewable on GitHub
Each submission should have a short video that describes scope and functionality of the dapp
Criteria:
Utility
Technical sophistication
Innovation and uniqueness of features within the chosen category
Bonus points for number of Consensys products used (Infura, and MetaMask)
This workshop is happening in-person
🛠️ MetaMask Snaps Workshop
Time: 03:20 PM EDT – Sep 22, 2023
Location: Workshop Room 2
Workshop description

MetaMask Snaps
MetaMask SDK
MetaMask SDK: https://metamask.io/sdk/
MetaMask SDK Code Examples:https://github.com/MetaMask/metamask-sdk/tree/main/packages/examples/MetaMask Unity SDK Documentation:https://docs.metamask.io/wallet/how-to/use-sdk/unity/
MetaMask ReactNative SDK Documentation:https://docs.metamask.io/wallet/how-to/use-sdk/react-native/
MetaMask JavaScript/React SDK Documentation:https://docs.metamask.io/wallet/how-to/use-sdk/
SDK React Workshop Example:https://github.com/MetaMask/react-sdk-linea-workshop
React Hooks:https://www.npmjs.com/package/@metamask/sdk-react
Linea
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