Great Gas Grants

Great Gas Grants offers an innovative solution for funding gas fees, powered by our new Account Abstraction Paymaster with credential-based verification. Now, it's easier than ever for community members to join the Web3 ecosystem.

Key Features:

• Smooth Web3 Onboarding
• Access to Learning Resources
• Community Empowerment
• Developer Grant Opportunities

Our platform is Sybil attack-resistant and utilizes the Account Abstraction Paymaster for credential-based verification. Seamlessly integrating with services like Polygon ID and Worldcoin, it provides granting and verification processes that respect user privacy while ensuring the use of valid credentials.

Credential-Based Account Abstraction Paymaster

Our platform utilizes a custom Account Abstraction Paymaster to verify user credentials on-chain. Once the credentials are successfully confirmed, the smart contract sponsors the transaction, allowing only eligible users to benefit from the gas grants.

We have adopted the ERC4337 0.5.0 smart contract standard and bundler for efficient transaction handling. To accelerate the wallet app's development, Great Gas Grants employed Trampolin, a widely-used quick-start solution.

Polygon ID and Worldcoin for Credential Services

Great Gas Grants integrates both Polygon ID and Worldcoin as credential services to verify user eligibility, ensuring privacy and security for users' data.

Worldcoin

Great Gas Grants employs Worldcoin to confirm that users are human and not bots, adding a layer of Sybil resistance. This approach prevents individuals from creating multiple accounts to access the same grants repeatedly, upholding fairness and equal opportunity for all eligible users on the platform.

The platform has integrated the 'Sign in with Worldcoin' feature for user authentication, streamlining the login process. Additionally, it incorporates on-chain verification within the paymaster smart contract, offering a secure and efficient method to verify credentials and manage gas grants for eligible users.

PolygonID

Great Gas Grants utilizes Polygon ID to generate ETHTokyo Participant credentials, allowing community members to create grants for all attending hackers. This enables participants to benefit from sponsored Account Abstraction (AA) transactions through Polygon ID. The platform integrates custom credential issuance and verification within the frontend and wallet for a seamless user experience.

While attempting to incorporate on-chain verification with the paymaster, the team faced challenges interacting with browser extension AA wallets due to Polygon ID app specifications.