HIP-4 on Hyperliquid,
decoded.
HIP-4 is Hyperliquid's outcome-contract protocol. It brings bounded-payout prediction markets to the HyperCore order book, where outcomes trade as price-like contracts and settle automatically after resolution.
Current status: curated HIP-4 outcome markets are live on mainnet. Permissionless Standard-mode market creation has been observed on testnet. The two environments should not be treated as equivalent.
Outcome contracts on a trading engine.
HIP-4 uses Hyperliquid's central limit order book for event outcomes. Traders post bids and asks, fill against other participants, and manage outcome exposure alongside the rest of their Hyperliquid account.
Contract identity
Understand outcome encoding, #N API coins, +N token names, and integer asset IDs.
Automatic settlement
Winning outcomes settle to 1.0, losing outcomes to 0.0, with no separate claim step.
Original dataIndexed market archive
Browse an independently indexed snapshot of HIP-4 fills and market rows.
TestnetPermissionless launch
See the stake, activation, venue, and template constraints observed in Standard mode.
Trade it, query it, or build on it.
hip4.fun is the reference surface. Products built by the same Purrdict team turn the protocol into usable interfaces and developer infrastructure.
Purrdict trading app
Discover and trade live HIP-4 outcomes through a dedicated interface.
LaunchpadCreate a testnet market
A wallet-native frontend for the permissionless deployment flow.
ParlaysCombine prediction markets
Learn how multi-leg outcome combinations, correlated quotes, and all-legs-win settlement work.
LiquidityBe the house
Understand the depositor-owned vault designed to compete for the maker side of parlay RFQs.
Datamute.sh
REST, streaming, and webhook delivery over the indexed HIP-4 data layer.
Open sourceSDK and UI components
TypeScript market utilities and React components published by Purrdict.