Protecting DeFi users and protocols from Ethereum gas volatility through Uniswap v4 Hook-based derivatives.

InvestInGas is a comprehensive hedging ecosystem designed to solve the most persistent problem in decentralized finance: Gas Price Unpredictability.

By leveraging the power of Uniswap v4 Hooks, we've created a marketplace where users can "lock in" their future gas costs by purchasing NFT-represented gas credits. Whether you're a retail user planning a swap yesterday or an institutional bot manager securing throughput for next month, InvestInGas provides the tactical hedge you need.

Live Demo

The InvestInGas ecosystem is a multi-layered infrastructure consisting of five specialized repositories:

The center for gas management.

• Next.js 15 & React 19: Utilizing the latest App Router and Server Components for maximum performance.
• Dynamic UX: High-fidelity dashboard built with Tailwind CSS.
• Real-Time Data: Integrated with TanStack Query and Wagmi for live blockchain state and oracle updates.
• Gasless-Like Flow: Signature-based interactions (EIP-712) powered by Viem for a seamless "Buy & Redeem" experience.

The core liquidity and hedging logic, built natively on Uniswap v4.

• Uniswap v4 Hook: Custom InvestInGasHook that intercepts swaps to facilitate gas-credit purchases.
• NFT Positions (IIGPOS): Positions are minted as dynamic ERC-721 tokens, representing the right to redeem WETH for gas.
• Liquidity Management: Optimized for USDC/WETH pools with custom tick management for stable pricing.
• Expiry Logic: Built-in protection for users to claim refunds if gas prices never drop to their target hedge.

The orchestration layer connecting Ethereum, Sui, and Li.Fi.

• EIP-712 Signature Verification: Allows users to authorize trades via signatures, removing the need for manual gas interaction.
• Transaction Bundling: Orchestrates complex flows (Swap -> Mint NFT) in a single relayer-triggered execution.
• Position Tracking: Indexed lookup for all active and expired positions across supported chains.

High-frequency data service for cross-chain market intelligence.

• Multi-Chain Aggregator: Fetches eth_gasPrice from 5+ EVM chains every 500ms.
• Sui Integration: Publishes real-time gas prices to the Sui blockchain for decentralized verification.
• Buy Signal Intelligence: Analyzes 24h rolling windows to generate "Tactical Alpha" for users.

The decentralized data storage and signal engine on Sui.

• Move Smart Contracts: High-performance storage for cross-chain gas price data in wei.
• Buy Alpha Engine: On-chain logic to detect if gas is >10% cheaper than the 24h average.
• Staleness Protection: Verifiable data feeds with 5-minute strict staleness thresholds.

• Gas Locking: Lock in gas prices as low as 1 Gwei today for use during high-congestion events (e.g., NFT mints, volatile liquidations).
• Cross-Chain Settlement: Hedge on Ethereum L1, but settle funds on Arbitrum, Base, or Optimism.
• Native Yield: Idle WETH in positions can be utilized within the hook architecture (future roadmap).

• Signature-Based UX: Zero ETH required on the source wallet to buy credits; the relayer handles the execution.
• Alpha Notifications: Real-time "Buy Signals" appear when gas prices hit historical lows.
• Automated Redemption: Integrated with LI.FI for one-click bridging and gas delivery to any L2.
• Dynamic NFT Metadata: NFTs visually reflect their current value, expiry status, and target gas price.

• InvestInGas Hook: 0xad599566c6ca5b222d782d152d21cf77efdc80c0
• LiFi Bridger: 0xf5e667d4a18a149145853d30e72b010b376272cb

• Darshit Bhalodi - Full-Stack Blockchain Engineer

Built with ❤️ for Hackmoney 2026