POLYMARKET CLONE DEVELOPMENT
PROPELOO engineers Polymarket-inspired prediction platforms — CLOB-based price discovery, Polygon L2 deployment, UMA oracle resolution, conditional token (ERC-1155) positions, LP incentives and the market discovery interface that makes prediction markets usable by non-crypto audiences. A Polymarket clone that replicates the UI without the underlying Gnosis Conditional Token framework and UMA resolution is not a prediction market.
Polymarket architecture has three distinct innovations over earlier prediction markets. First: CLOB (central limit order book) trading for high-volume markets — real bids and asks rather than AMM curves, enabling tight spreads on liquid markets. Second: conditional token framework (Gnosis CTF) that makes outcome positions composable ERC-1155 tokens, tradeable on any DEX. Third: UMA optimistic oracle that resolves markets through economic incentives rather than trusted centralized oracles. PROPELOO builds Polymarket-style platforms using these same architectural foundations — CTF smart contracts, off-chain order book with on-chain settlement, UMA resolution integration, and Polygon or Base deployment for gas-affordable trading.
Each component is a distinct system that must be built correctly.
Gnosis CTF deployment: collateral (USDC) is split into YES/NO outcome tokens. Each token trades at a price between 0 and 1 USDC representing its probability. On resolution, winning tokens redeem at 1 USDC, losing tokens at 0.
Off-chain order matching engine with on-chain settlement. Orders signed with EIP-712 signatures. Matching engine pairs limit orders. Settlement batch submitted to chain. No gas cost per order — only per settlement.
Market creator proposes a resolution condition (UMIP). On end date, a proposer submits the result with a bond. 48-hour dispute window. If disputed, UMA token holders vote. Accepted results trigger automatic payout.
Initial AMM liquidity for new markets before CLOB order flow develops. LP incentive program: fee share from trading volume. Market creator minimum liquidity requirement.
Trending markets by volume, category navigation (politics, sports, crypto, finance), featured markets, search. Social proof: number of traders, total volume, recent trades.
ERC-4337 account abstraction with USDC paymaster — users pay gas in USDC, no ETH required. Email/social login via embedded wallet. Enables non-crypto audience participation.
The key insight in Polymarket architecture is separating price discovery from settlement — the order book operates off-chain for performance, settlement happens on-chain for trust.
Putting every order on-chain makes gas costs prohibitive for retail traders. Polymarket runs an off-chain matching engine that pairs orders, then submits settlement batches to the chain. The trust comes from EIP-712 signed orders — users sign their own orders, the matching engine cannot forge them. This hybrid model gives the performance of a CEX with the trust of a DEX settlement.
Axiom: PERFORMANCE OFF-CHAIN, TRUST ON-CHAIN
Gnosis Conditional Token Framework is the established standard for prediction market positions. Using it gives composability with other DeFi protocols, auditability, and a proven smart contract codebase. Building custom position tracking is unnecessary risk.
Axiom: USE THE ESTABLISHED STANDARD
These choices define fidelity to the Polymarket model and where you diverge.
Impact: Gnosis CTF is the correct choice. It is audited, widely understood in the DeFi ecosystem, and composable with other protocols.
Impact: Polygon for maximum overlap with existing Polymarket users. Base for targeting Coinbase users and newer DeFi audience. Both are viable.
Impact: UMA for production. Admin multisig for MVP testnet with committed migration to UMA before mainnet.
Impact: Embedded wallet with account abstraction as default, external wallet as option. This captures the non-crypto audience that Polymarket has successfully onboarded via Farcaster.
Full Polymarket-style platform on Polygon/Base — CTF contracts, CLOB order book, UMA oracle, account abstraction, market discovery.
Prediction platform specialising in sports events — Chainlink sports oracle, real-time score updates, same-game parlays.
Prediction market layer integrated with an existing DeFi protocol — price prediction, governance outcome prediction, composable positions.
Prediction market built for the Farcaster ecosystem — Frame-based trading, social proof, viral market sharing.
Proven contracts, performant off-chain infrastructure.
Stack: Gnosis CTF (ERC-1155), UMA optimistic oracle, ERC-4337 account abstraction, USDC collateral, Foundry + Hardhat
Stack: Custom CLOB engine (Go), EIP-712 signed orders, On-chain batch settlement, PostgreSQL (orders), Redis (order book state)
Stack: Node.js API, The Graph (indexer), WebSocket (live prices), Market data pipeline, Resolution monitoring
Stack: Next.js, WalletConnect, Privy (embedded wallet), Real-time price charts, Mobile-responsive
Signed orders and conditional tokens reduce smart contract attack surface. Oracle manipulation is the primary residual risk.
EIP-712 signed orders cannot be forged by the matching engine. The user signature covers asset, price, quantity and expiry. The on-chain settlement contract verifies signatures before execution.
Dispute bonds must be large enough to make frivolous disputes economically irrational. If the bond is too small, every resolution can be griefed with cheap disputes. UMA bond sizing should be calibrated to the maximum market size.
CTF contracts and settlement contracts must be audited before mainnet. UMA integration must be tested against all resolution scenarios including disputed outcomes.
CTF deployment, oracle selection, order book design, account abstraction model.
CTF fork/integration, settlement contract, oracle integration, account abstraction.
Off-chain CLOB, order matching, batch settlement submission.
Event indexer, market API, position tracking, resolution monitoring.
Market discovery, trading interface, account management, portfolio.
Smart contract audit, testnet launch, liquidity seeding test.
Mainnet deployment, initial market creation, monitoring.
Yes. We use or fork the Gnosis Conditional Token Framework — the same smart contract standard that Polymarket uses. This gives you battle-tested contracts, ERC-1155 composability, and compatibility with the existing DeFi prediction market ecosystem.
Traders sign EIP-712 typed orders off-chain. The matching engine pairs compatible orders and submits a settlement transaction to the on-chain contract. The contract verifies both signatures and executes the token swap. Traders never need to trust the matching engine with custody — they only sign their own orders.
Yes, with account abstraction. Privy or Dynamic create an embedded wallet on email/social login. A USDC paymaster sponsors gas. Users see no blockchain interaction — just buy YES/NO with their balance. External wallet users can connect MetaMask or any WalletConnect-compatible wallet.
We implement multi-oracle resolution frameworks: primarily UMA Optimistic Oracle (as used by Polymarket) for subjective or complex real-world events with a dispute bonding window, and Chainlink Data Feeds for objective numerical data (such as crypto asset prices, sports statistics, or financial indices). We also support multi-sig emergency overrides for disputed edge cases.
We implement automated market maker (AMM) pricing models such as LMSR (Logarithmic Market Scoring Rule) and CPMM (Constant Product Market Maker) alongside the central limit order book (CLOB). Automated market making bots can also quote two-sided liquidity around current consensus probability to maintain tight bid-ask spreads across all active markets.
We build regional geoblocking, IP filtering, and optional KYC verification gates into the platform. Markets can be categorized into regulated prediction categories or operated under offshore gaming/derivatives licensing frameworks depending on operator jurisdiction. PROPELOO delivers technical access control and risk mitigation tooling.
High-throughput, low-fee EVM networks like Polygon PoS, Arbitrum, Base, or Optimism are ideal. Sub-cent transaction fees and fast block confirmation times are essential because prediction markets feature frequent position adjustments and micro-stakes. We also provide cross-chain bridging to allow liquidity deposits from Ethereum mainnet.
Yes. Smart contracts can be configured with customizable protocol fee parameters: a fractional fee on order settlement (e.g., 0.1%–0.5% of trade volume) and/or a redemption fee on winning outcome shares upon final market settlement. Fees are automatically routed to a designated treasury smart contract or multi-sig vault.