Blazing fast typescript Hyperliquid SDK

Features

• Typed: Source code is 100% TypeScript.
• Tested: Good code coverage and type relevance.
• Minimal dependencies: A few small trusted dependencies.
• Cross-Environment Support: Compatible with all major JS runtimes.
• Integratable: Easy to use with viem accounts — local (private key) or JSON-RPC (browser wallet).

Documentation

Browse the SDK documentation for installation, clients, transports, signing, utilities, and guides.

Installation

Bun 1.3.3+

bun add @bloxwap/hyperliquid

Node.js 22.12+ / React Native 0.86+

npm i @bloxwap/hyperliquid

pnpm

pnpm add @bloxwap/hyperliquid

Yarn

yarn add @bloxwap/hyperliquid

React Native needs polyfills for the fastAssetCtxs subscription and for versions below 0.86 — see the documentation.

Quick Example

Read

// 1. Import module
import { HttpTransport, InfoClient } from "@bloxwap/hyperliquid";

// 2. Set up client with transport
const transport = new HttpTransport();
const info = new InfoClient({ transport });

// 3. Query data

// Retrieve mids for all coins
const mids = await info.allMids();

// Retrieve a user's open orders
const openOrders = await info.openOrders({ user: "0x..." });

// L2 book snapshot
const book = await info.l2Book({ coin: "BTC" });

Trade

// 1. Import modules
import { ExchangeClient, HttpTransport } from "@bloxwap/hyperliquid";
import { privateKeyToAccount } from "viem/accounts";

// 2. Set up client with wallet and transport
const wallet = privateKeyToAccount("0x...");

const transport = new HttpTransport();
const exchange = new ExchangeClient({ transport, wallet });

// 3. Execute an action

// Place an order
const result = await exchange.order({
  orders: [{
    a: 0,
    b: true,
    p: "95000",
    s: "0.01",
    r: false,
    t: { limit: { tif: "Gtc" } },
  }],
  grouping: "na",
});

// Update leverage
await exchange.updateLeverage({ asset: 0, isCross: true, leverage: 5 });

// Initiate a withdrawal request
await exchange.withdraw3({ destination: "0x...", amount: "1" });

For low-latency bots, prefer createFastLocalWallet (WASM secp256k1) and install the optional hash-wasm package for ambient keccak acceleration. Trusted callers can also pass { skipValidation: true } — see the low-latency recipe.

Subscribe

// 1. Import module
import { SubscriptionClient, WebSocketTransport } from "@bloxwap/hyperliquid";

// 2. Set up client with transport
const transport = new WebSocketTransport();
const subs = new SubscriptionClient({ transport });

// 3. Subscribe to events

// Subscribe to mids for all coins
await subs.allMids((data) => {
  console.log(data);
});

// Subscribe to user's open orders
await subs.openOrders({ user: "0x..." }, (data) => {
  console.log(data);
});

// Subscribe to L2 book snapshot
await subs.l2Book({ coin: "ETH" }, (data) => {
  console.log(data);
});

Warning

• Never hardcode private keys in source or commit them to git. Load them from environment variables or a secret store (Bun auto-loads a local .env, which is gitignored in this repo).
• For trading bots, prefer a Hyperliquid agent wallet (API wallet) over the master account key: an agent key can trade but cannot withdraw, and it can be revoked without rotating the master key.
• See Signing for how wallets, signatures, and nonces work.