HyperLiquid.Net 5.2.1

HyperLiquid.Net

HyperLiquid.Net is a client library for accessing the HyperLiquid DEX REST and Websocket API.

Features

• Response data is mapped to descriptive models
• Input parameters and response values are mapped to discriptive enum values where possible
• High performance
• Automatic websocket (re)connection management
• Client side rate limiting
• Client side order book implementation
• Support for managing different accounts
• Extensive logging
• Support for different environments
• Easy integration with other exchange client based on the CryptoExchange.Net base library
• Native AOT support

Supported Frameworks

The library is targeting both .NET Standard 2.0 and .NET Standard 2.1 for optimal compatibility, as well as the latest dotnet versions to use the latest framework features.

Install the library

NuGet

dotnet add package HyperLiquid.Net

GitHub packages

HyperLiquid.Net is available on GitHub packages. You'll need to add https://nuget.pkg.github.com/JKorf/index.json as a NuGet package source.

Download release

The NuGet package files are added along side the source with the latest GitHub release which can found here.

How to use

The library uses [BaseAsset]/[QuoteAsset] notation for Spot symbols and [BaseAsset] for futures symbols. Futures symbols inherently have USDC as quote symbol.
Spot symbol: HYPE/USDC
Futures symbol: HYPE

Basic request:

var restClient = new HyperLiquidRestClient();

// Spot HYPE/USDC info
var spotTickerResult = await restClient.SpotApi.ExchangeData.GetExchangeInfoAndTickersAsync();
var hypeInfo = spotTickerResult.Data.Tickers.Single(x => x.Symbol == "HYPE/USDC");
var currentHypePrice = hypeInfo.MidPrice;

// Futures ETH perpetual contract info
var futuresTickerResult = await restClient.FuturesApi.ExchangeData.GetExchangeInfoAndTickersAsync();
var ethInfo = futuresTickerResult.Data.Tickers.Single(x => x.Symbol == "ETH");
var currentEthPrice = ethInfo.MidPrice;

Place order:

var restClient = new HyperLiquidRestClient(opts => {
	opts.ApiCredentials = new HyperLiquidCredentials("PUBLICKEY", "PRIVATEKEY");
});

// Place Limit order to go long for 0.1 ETH at 2000
var orderResult = await restClient.FuturesApi.Trading.PlaceOrderAsync(
    "ETH",
    OrderSide.Buy,
    OrderType.Limit,
    0.1m,
    2000
    );

WebSocket subscription:

// Subscribe to HYPE/USDC Spot ticker updates via the websocket API
var socketClient = new HyperLiquidSocketClient();
var tickerSubscriptionResult = await hyperLiquidSocketClient.SpotApi.SubscribeToSymbolUpdatesAsync("HYPE/USDC", (update) =>
{
	var lastPrice = update.Data.MidPrice;
});

For information on the clients, dependency injection, response processing and more see the documentation, or have a look at the examples here or here.

NOTE
HyperLiquid.Net uses the Builder Code mechanism for HyperLiquid, which means that an additional 1bps / 0.01% fee is charged on top of orders placed with the library to fund development. This is entirely optional and can be disabled in the client options by setting BuilderFeePercentage to 0 or null in the client options.

AI / LLM documentation

HyperLiquid.Net includes AI-oriented documentation and examples for code generation tools:

See cryptoexchange-skills-hub for installable skills.

CryptoExchange.Net

HyperLiquid.Net is based on the CryptoExchange.Net base library. Other exchange API implementations based on the CryptoExchange.Net base library are available and follow the same logic.

CryptoExchange.Net also allows for easy access to different exchange API's.

Exchange	Repository	Nuget
Aster	JKorf/Aster.Net
Binance	JKorf/Binance.Net
BingX	JKorf/BingX.Net
Bitfinex	JKorf/Bitfinex.Net
Bitget	JKorf/Bitget.Net
BitMart	JKorf/BitMart.Net
BitMEX	JKorf/BitMEX.Net
Bitstamp	JKorf/Bitstamp.Net
BloFin	JKorf/BloFin.Net
Bybit	JKorf/Bybit.Net
Coinbase	JKorf/Coinbase.Net
CoinEx	JKorf/CoinEx.Net
CoinGecko	JKorf/CoinGecko.Net
CoinW	JKorf/CoinW.Net
Crypto.com	JKorf/CryptoCom.Net
DeepCoin	JKorf/DeepCoin.Net
Gate.io	JKorf/GateIo.Net
HTX	JKorf/HTX.Net
Kraken	JKorf/Kraken.Net
Kucoin	JKorf/Kucoin.Net
Lighter	JKorf/Lighter.Net
Mexc	JKorf/Mexc.Net
OKX	JKorf/OKX.Net
Polymarket	JKorf/Polymarket.Net
Toobit	JKorf/Toobit.Net
Upbit	JKorf/Upbit.Net
Weex	JKorf/Weex.Net
WhiteBit	JKorf/WhiteBit.Net
XT	JKorf/XT.Net

When using multiple of these API's the CryptoClients.Net package can be used which combines this and the other packages and allows easy access to all exchange API's.

Discord

A Discord server is available here. For discussion and/or questions around the CryptoExchange.Net and implementation libraries, feel free to join.

OSX Support

The signing method used in the library is not natively supported on OSX. Because of this a custom signing method has to be provided or a PlatformNotSupported exception will be thrown while trying to sign a request.

A custom signing method can be provided using HyperLiquidExchange.SignRequestDelegate = CustomSigningMethod;.
To run on OSX the Nethereum.Signer.EIP712 package can be installed with the following custom signing method:

Dictionary<string, object> Sign(string request, string secret)
{
    var messageBytes = Convert.FromHexString(request);
    var sign = new MessageSigner().SignAndCalculateV(messageBytes, new EthECKey(secret));
    return new Dictionary<string, object>()
            {
                { "r", "0x" + Convert.ToHexString(sign.R).ToLowerInvariant() },
                { "s", "0x" + Convert.ToHexString(sign.S).ToLowerInvariant() },
                { "v", (int)sign.V[0] }
            };
}

Supported functionality

Rest & WebSocket

Requests are available on both the WebSocket and REST client

Websocket streams

Support the project

Any support is greatly appreciated.

Referral

If you do not yet have an account please consider using this referal link to sign up: Link
Not only will you support development at no cost, you also get a 4% discount in fees.

Donate

Make a one time donation in a crypto currency of your choice. If you prefer to donate a currency not listed here please contact me.

Btc: bc1q277a5n54s2l2mzlu778ef7lpkwhjhyvghuv8qf
Eth: 0xcb1b63aCF9fef2755eBf4a0506250074496Ad5b7
USDT (TRX) TKigKeJPXZYyMVDgMyXxMf17MWYia92Rjd

Sponsor

Alternatively, sponsor me on Github using Github Sponsors.

Release notes

• Version 5.2.1 - 13 Jul 2026

  • Fixed deserialization for EditOrderAsync, ToggleHip3DexAbstractionAsync, SetLeverageAsync and UpdateIsolatedMarginAsync websocket requests when response is an error

• Version 5.2.0 - 09 Jul 2026

  • Updated CryptoExchange.Net to v12.1.0

• Version 5.1.0 - 07 Jul 2026

  • Added restClient.SpotApi.Account.GetSubAccounts2Async endpoint
  • Added CollateralTokenIndex and CollateralToken to HyperLiquidFuturesDexInfo model
  • Added ClientOrderId to HyperLiquidUserTrade model
  • Added DeployerTradingFeeShare to HyperLiquidAsset model
  • Added RequestSurplus to HyperLiquidRateLimit model
  • Updated futures GetExchangeInfoAsync response type to HyperLiquidFuturesDexInfo
  • Fixed EditOrdersAsync using ClientOrderId instead of NewClientOrderId for the replacement order

• Version 5.0.0 - 29 Jun 2026

  • Result types:
    • (Web)CallResult types are replaced by HttpResult, WebSocketResult and QueryResult with the same logic
    • WebSocketResult and QueryResult now return additional info for websocket operations
    • Updated result types to record type
    • Removed implicit result type conversion to bool, if (result) no longer works, instead use if (result.Success)
    • Fixed result object nullability hinting, for example Data might be null if Success isn't checked for true
  • Clients:
    • Added ToString overrides on base API types
    • Added Exchange property on BaseApiClient
    • Added ApiCredentials property on Api clients
    • Updated ILogger source from client name to topic specific client name
    • Removed logging from client creation
    • Fixed issue in SocketApiClient.GetSocketConnection causing requests to always wait the full max 10 seconds when there was a reconnecting socket
  • Shared APIs:
    • Added missing dedicated option types
    • Added Discover method on ISharedClient interface, returning info on supported capabilities and operations
    • Added ResetStaticExchangeParameters method on ExchangeParameters
    • Added Status property to SharedWithdrawal model
    • Added TradingModes property to SharedBalance model
    • Updated Shared ExchangeParameters parameter names to be case insensitive
    • Updated code comments
    • Replaced ExchangeResult with ExchangeCallResult type
    • Removed TradingMode from the response model, only maintained on models where it makes sense
  • Added alwaysPlace parameter to EditOrderAsync endpoints
  • Added async streaming on UserDataTracker items with StreamUpdatesAsync
  • Added cancellation token support to UserDataTracker starting
  • Added SupportedEnvironments property to PlatformInfo
  • Added setter to HyperLiquidExchange.RateLimiter to allow custom rate limit settings
  • Added Clear() method on UserClientProvider to clear all cached clients
  • Updated HyperLiquidPositionUpdate internal Data type
  • Various small performance improvements
  • Marked SubscribToUserUpdatesAsync as obsolete
  • Fixed websocket connection attempts counting towards rate limit even when server could not be reached
  • Fixed websocket user data update filtering based on address