Vektar

Vektar is a settlement oracle for prediction markets. It answers: what can a prediction market position actually be settled for right now, against real order book depth

Today, $20B+ sits in prediction markets, but there is no on-chain source for real exit value. Price feeds report mark-to-market, not what a position can clear against live bids. A user might hold $10k of "Yes" shares while the order book has only $2k of buy-side depth. Their real exit value is far lower than the price suggests.

That mismatch (the "liquidity illusion") blocks lending, early exit, and derivatives. Protocols cannot safely collateralize prediction market positions; users cannot exit before binary resolution without taking unknown slippage.

Vektar fixes this with a CRE workflow that, every 12 seconds, fetches the Polymarket CLOB via Confidential HTTP (TEE-shielded so no DON node sees which market is being priced), computes VWAP against live bid depth with anti-manipulation safeguards, and publishes a BFT-signed settlement value on-chain. Any protocol can call getSettlementValue(tokenId) — a public oracle, like Chainlink price feeds but for prediction market exit liquidity.

We also built an early-exit demo app on top that lets users exit before binary resolution and receive the oracle’s value in USDC immediately, with payouts routed through a Convergence privacy vault so recipient, amount, and operator identity never appear on-chain. The oracle is the product; early exit is one thing you can build with it.

• Chainlink CRE — Cron (12s) and EVM log triggers, Confidential HTTP for CLOB data, BFT consensus, cross-chain reads/writes, and secrets management
• Tenderly Virtual TestNets — Polygon and Base mainnet forks with real Polymarket state for testing
• Contracts — CollateralEscrow.sol (Polygon) for locked collateral; SettlementVault.sol (Base) for oracle reports and early exit
• LTV engine — VWAP simulation, TWOB anti-manipulation, rate limiting, and safety margin
• Convergence vault — Private payouts via Handler 3 (EIP-712, ACE compliance)