What is HIP-4 on Hyperliquid?

HIP-4 is Hyperliquid's outcome-trading primitive for prediction markets. It uses HyperCore's central limit order book, fully collateralized outcome shares, and automatic on-chain settlement.

Can I build my own prediction market frontend on HIP-4?

Yes. HIP-4 markets are permissionless to trade. Builders can use the Hyperliquid API, the public @purrdict/hip4 TypeScript package, and Purrdict's HIP-4 React components without joining the builder program.

Public developer stack

Build on HIP-4.

Q: What data does Purrdict provide for builders?

Purrdict publishes dated HIP-4 market snapshots with transparent methodology. For normalized prediction-market tables, historical data, and streaming delivery, builders can use mute.sh.

Prediction market infrastructure on Hyperliquid.
Data, APIs, and the tools to ship faster.

What builders get

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Historical data archive

Download dated HIP-4 market snapshots with transparent methodology. For normalized prediction-market tables, historical data, and streaming delivery, use mute.sh.

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Real-time WebSocket feeds

Subscribe to HIP-4 prices, order books, trades, and user fills with the public @purrdict/hip4 package.

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Open-source HIP-4 TypeScript package

Parse market descriptions, map outcome identifiers, calculate valid prices and sizes, and construct orders with the MIT-licensed package distributed through npm.

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Technical documentation

Read the Purrdict HIP-4 guide, use the independent HIP-4 developer hub, or browse public React components.

What you can build

Custom frontends

Build your own prediction market UI with shadcn-compatible HIP-4 components, custom theming, and vertical-specific market views.

Trading bots

Automated market making, arbitrage between prediction markets and perps, or signal-based trading strategies on HIP-4 markets.

Analytics dashboards

Market analytics, probability trackers, portfolio performance, historical accuracy scoring, and settlement analysis tools.

Data products

Prediction market data feeds, sentiment indices, or probability APIs that other applications can consume.

Get early access

Tell us what you're building. We'll get you set up with data access and technical support.

We review every application. Expect a response within 48 hours.

Builder FAQ

What is HIP-4?: HIP-4 is Hyperliquid's protocol for native prediction markets. It runs on the same engine that handles Hyperliquid markets. Read the canonical HIP-4 guide.
Is this free?: The @purrdict/hip4 package and HIP-4 React components are MIT-licensed. Purrdict's dated market snapshots are published under CC BY 4.0. Commercial data access through mute.sh has separate plans.
Do I need permission to build on HIP-4?: No. HIP-4 markets are permissionless to trade via the Hyperliquid API. The builder program gives you a head start with data, parsing libraries, and support — but you can start building today.
Why can't I just use the Hyperliquid API directly?: You can. The public TypeScript package provides tested helpers for HIP-4 outcome identifiers, market metadata, price constraints, and order construction. Purrdict also publishes dated market snapshots, while mute.sh provides normalized historical and streaming data.