Problem:
Interacting with diverse blockchain networks poses challenges for users due to limitations in existing gas fee payment solutions, such as:
Dependency on Centralized Exchanges: Users must rely on centralized exchanges for native tokens, creating a single point of failure and security concerns.
Complexity for New Users: Acquiring specific native tokens for each blockchain is daunting for newcomers, hindering the onboarding process.
Limited Token Options: Users are confined to using native tokens, restricting choices for gas fee payments.
Long Bridging Time between Chains: Transferring tokens between blockchains is time-consuming, impacting user experience.
Solution:
Cross-chain paymasters tackle these challenges by:
Enabling interoperability: Users can use tokens from different blockchains for gas fees, fostering seamless interaction across ecosystems.
Reducing costs: Eliminates the need for multiple native tokens, streamlining processes and potentially lowering costs.
Providing flexibility: Users can choose tokens from any compatible blockchain for gas fees, enhancing control and choice.
Saving time: Eliminates the need for specific native tokens, allowing quick and efficient transactions across multiple chains.
Use cases:
Cross-chain paymasters find applications in:
DApps: Improved user experience and accessibility, enabling interaction without native tokens.
Cross-chain swaps: Effortlessly exchange tokens between blockchains without manual acquisition of native tokens.
NFT marketplaces: Buy and sell NFTs across blockchains using any compatible tokens.
Gaming: Play games on different blockchains without acquiring specific native tokens.
Throughout the project development, we encountered significant challenges related to the choice of software development kit (SDK) and its limitations:
SDK Selection Dilemma:
Challenge: Identifying an SDK covering all blockchain chains proved challenging.
Resolution: We prioritized the SDK supporting the most chains, aligning with our goal of broad coverage.
Paymaster Support Discrepancies:
Challenge: The chosen SDK lacked uniform paymaster support across all chains.
Resolution: Despite limitations, we chose the SDK with the broadest paymaster support to maximize user reach.
Whitelisting Process Complexity:
Challenge: The selected SDK required a whitelisting process for transaction sponsorship, contrasting with simpler API key and credit approaches.
Resolution: We streamlined whitelisting, addressing complexities to enhance user transaction experiences.
Comparing Limitations:
Challenge: Both the chosen SDK and alternatives presented unique limitations.
Resolution: Prioritizing our goal to support the maximum chains, we carefully evaluated each solution and made an informed decision based on overall compatibility.
Tracks Applied (5)
Arbitrum
Polygon
Base
Mantle Network
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