OmniBet

Problem Statement

OmniBet is an AI-powered, omnichain prediction market platform that allows users to bet on real-world events from any blockchain, and interact with dynamic, short-form markets created in real time. Built on top of LayerZero’s lzCompose and leveraging Flow blockchain, AI agents, and NFT rewards, OmniBet brings together the best of prediction markets, cross-chain UX, and gamified mobile engagement.🌐 Core Idea OmniBet aims to make prediction markets accessible, fast, and fun by solving three problems:Chain fragmentation — users shouldn’t need to switch networks to access a market.Manual market creation — markets should emerge in real time based on live events.Boring UI/UX — betting should feel intuitive, social, and rewarding.🔮 Key FeaturesOmnichain Market Participation Users can place bets on markets created on any chain from any other chain — powered by LayerZero’s lzCompose.Liquidity is automatically rebalanced across chains, and parallel cross-chain messages ensure low-latency execution.AI-Curated Real-Time NBA Markets An AI agent watches live NBA games using stream analysis and LLMs.It creates short-timed micro-markets like: “Will LeBron score in the next 2 minutes?”These are deployed exclusively on Flow, designed for mobile-first interaction.Swipe-Based UX (Tinder Style) Markets are presented in a Tinder-style card interface.Users swipe right for “Yes”, left for “No” — fast, intuitive, and accessible.No form-filling or confusing options — it’s prediction betting made for the TikTok generation.Tamper-Proof Market Resolution Market outcomes are resolved using vLayer WebProof.It fetches real-time NBA scores from trusted sources and generates cryptographic proofs that resolve the bets on-chain, without human input.NFT Rewards with Real-World Utility Winning users receive NBA Player NFTs minted on Flow.These NFTs can be redeemed for:Official merchandiseFan community accessFuture loyalty points or collectibles

Solution

OmniBet was built as a deeply composable, modular system that brings together omnichain infrastructure, AI-generated prediction markets, and gamified UX, all working in real time across multiple blockchain ecosystems.We used a mix of on-chain smart contracts, cross-chain messaging protocols, AI agents, and mobile-first front-end design, with a few “hacky” workarounds to enable live-market resolution and instant UX.⚙️ Tech Stack Breakdown ✅ Smart Contracts EVM Contracts (Solidity) for general prediction marketsFactory + Singleton-style contractHandles creation, user bet tracking, escrow, and payout logicFlow Contracts (Cadence) for NBA AI-generated swipe marketsSwipe interaction stored as on-chain voteNFT mint logic for winners triggered on market resolution✅ Omnichain Infrastructure (LayerZero + lzCompose) Used LayerZero’s lzCompose to:Let users on any chain place bets on markets hosted anywhereRoute token staking, message payloads, and user actions across chainsAutomatically rebalance liquidity using multi-chain token contractslzCompose’s parallel message execution gave us near-instant UX and simplified bridging logic✅ AI Agent for NBA Market Creation Built an AI agent using:OpenAI Whisper to transcribe NBA commentary from stream audioLangChain + GPT-4 to extract intent and generate time-boxed market statementsExample output: “Market: Will LeBron score in next 2 mins?”These were auto-deployed to Flow with an internal “Market Publisher” function✅ vLayer WebProof for Market Resolution Used vLayer’s WebProof to:Scrape trusted NBA APIs and sports sitesGenerate zk-verifiable proofs of event outcomeSubmit those proofs back to the Flow or EVM contract to resolve the marketThis let us resolve bets trustlessly, without needing oracles or manual intervention✅ Frontend React Native for a mobile-friendly, swipe-based UI (Tinder-style)Each market is shown as a card: swipe right to bet “Yes”, left for “No”WalletConnect + Wagmi + Flow SDK for wallet integrationUsed useEffect with LayerZero hooks to show confirmation modals once cross-chain txs landed🧪 Hacky / Clever Workarounds 🧠 We built a custom card queue component to render swipe markets that auto-fetched the next available AI market from Flow.🔁 For liquidity rebalancing, we piggybacked on lzCompose callback flows to “simulate” token transfers without bridging — keeping user assets in their native chain.📺 For NBA detection, we scraped Twitch and YouTube stream titles in real time and cross-referenced team names to improve market context — even when video parsing was slow.