Origin
First on testnet, then four languages.
hip4.dev ran the first builder market on HIP-4 testnet, worldwide. The SDK behind it shipped for TypeScript on npm, Python on PyPI, Rust on crates.io and Go.
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hip4.devThe production SDK for HIP-4.
The production SDK for Hyperliquid HIP-4 prediction markets - typed events, data, trading and signing for TypeScript, Python, Rust and Go.
Zero (TypeScript)Runtime dependencies
Four, classifiedMarket types
- Languages
- TypeScript, Python, Rust, Go
- First
- Builder market on HIP-4 testnet
Markets
Every outcome, typed by shape.
fetchMarkets sorts every HIP-4 outcome into default binary, labelled binary, multi-outcome or price bucket, with underlying, target price, expiry and thresholds parsed. Split, merge and negate are single calls.
Signing
Signing built in, nothing borrowed.
L1 agent and EIP-712 signing are implemented inside the SDK. The TypeScript package has zero runtime dependencies, and the Rust crate's only crypto dependency is k256.
