OnlyPngs

OnlyPngs is an AI-powered, non-custodial NFT trading platform that enables automated, gasless transactions. By leveraging Account Abstraction (ERC-4337) and Large Language Models, it allows users to manage their NFT portfolio and execute "The Sleeping Buy"—autonomous purchases triggered by real-time price drops—all through a simple chat interface.

Core Achievements:

• The Sleeping Buy: Built an autonomous monitoring system that executes trades based on price alerts even when the user is offline.
• Gasless UI/UX: Integrated 0xgasless AgentKit to provide a completely gas-free experience for users (Paymaster-funded transactions).
• Natural Language Interface: Implemented Google Gemini 2.0 Flash to translate human intent (e.g., "Buy a CoolCat if the price drops below 0.2 ETH") into on-chain actions.
• Security First: Architected a non-custodial system using Smart Accounts and session keys, ensuring user funds remain under their control while allowing the agent to trade on behalf.