AVNU Paymaster & Gas Sponsorship on Starknet

AVNU Paymaster on Starknet solves the gas fee friction that drives away new Web3 users by allowing dApps to sponsor gas fees or letting users pay in tokens like USDC/USDT instead of requiring native STRK. The guide covers setting up a paymaster account via the AVNU portal, creating API keys, funding credits, and integrating the PaymasterRpc class from the starknet npm package into JavaScript/TypeScript projects.