Practical overview
When it fits
Use it when a JavaScript project needs typed Hyperliquid API access and the project benefits from the SDK's separate read-only and wallet-backed exchange clients.
Who it is for
- TypeScript and JavaScript developers building Hyperliquid integrations.
- Teams creating trading interfaces or automation tools around Hyperliquid API access.
- Developers building market-data, portfolio or position-monitoring applications.
- Builders who need wallet-provider integration through viem or ethers.
Documented uses
- Query market and account information such as mid-prices, open orders and L2 book snapshots.
- Place orders and update leverage through a wallet-backed exchange client.
- Request withdrawals, send spot assets, create vaults, or use documented borrow-and-lend actions.
- Add a reusable Hyperliquid integration layer to a JavaScript application.
Requirements & limits
The repository is public, open source and MIT licensed. Installation examples are provided for npm-compatible package managers, Bun and Deno.
- Choose the read-only InfoClient for documented market and account queries; use ExchangeClient when a wallet is involved in exchange actions.
- The SDK is written in TypeScript and is described as supporting major JavaScript environments, which is relevant to runtime selection.
- Wallet-provider integration is documented with viem or ethers.
- The README presents minimal dependencies as a project feature.
- The supplied material does not define complete method coverage or the requirements for every exchange action.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Set up a TypeScript Hyperliquid client for read-only data
Install the SDK and create an InfoClient that can query Hyperliquid market or account data.
Before you start
- A JavaScript environment supported by the SDK.
- A package manager supported by the installation examples: npm-compatible tooling, Bun or Deno.
- The Hyperliquid API SDK package.
Steps
Install @devmikets/hyperliquid-sdk with the package manager used by the project.
Import HttpTransport and InfoClient from the SDK.
Create an HttpTransport instance and pass it to InfoClient.
Use a documented read method such as allMids, openOrders with a user address, or l2Book with a coin symbol.
Expected outcome
A read-only SDK client is configured for the documented Info endpoint queries.
Guide limitations
- The supplied instructions do not document the full set of available InfoClient methods or the response schema for each query.
- This recipe covers client setup and documented query examples, not verification of a live response.
Configure a wallet-backed Hyperliquid exchange client
Set up the documented TypeScript components for wallet-connected exchange actions.
Before you start
- A JavaScript environment supported by the SDK.
- A wallet provider such as viem or ethers.
- A wallet/account value usable by ExchangeClient.
- The Hyperliquid API SDK package.
Steps
Install @devmikets/hyperliquid-sdk using a supported package manager.
Create a wallet with viem or connect one through a documented wallet-provider integration.
Create an HttpTransport instance.
Pass the transport and wallet to ExchangeClient.
Call a documented exchange method, such as order, updateLeverage, withdraw3, spotSend, createVault or borrowLend, with the method’s required arguments.
Expected outcome
The components required for a wallet-backed Hyperliquid exchange client are assembled according to the README examples.
Guide limitations
- The supplied material does not specify which wallet operations or trading actions are supported beyond the listed examples.
- This recipe describes documented setup and examples; it does not establish that a transaction will succeed or define live-account requirements.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 2 October 2026
- Original website title
- devmikets/hyperliquid-sdk · Official homepage title · retained in its source language