Practical overview
When it fits
Use it when a C# or .NET application needs client-side access to Huobi Spot API services, especially when combining REST requests with live WebSocket updates.
Who it is for
- C# developers building applications that use Huobi spot-market data.
- Teams integrating spot trading or account operations into .NET software.
- Developers who need REST requests alongside WebSocket update subscriptions.
Documented uses
- Request public market data through REST clients.
- Subscribe to market updates such as trade or candlestick data using WebSocket clients.
- Retrieve account information and handle private account or trading operations.
- Receive account and order updates through WebSocket subscriptions.
Requirements & limits
The repository is public and specifies the Apache-2.0 license. The README identifies .NET Standard 2.1 as the compilation target. Private-data access requires credential configuration; public-data access can omit it.
- The SDK targets Huobi Spot API v3 and describes alignment with the newer HTX open-platform API documentation.
- REST calls support synchronous and asynchronous use; WebSocket clients cover market, account and order updates.
- Private-data operations require signing configuration and key material, while public data does not require the README's private key file.
- The README recommends v3 for users of SDK v1 or v2 and notes changes to interface parameters.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Set up a C# project with the SDK
Prepare a C# solution to call a Huobi API client.
Before you start
- A C# IDE and a project using .NET Standard 2.1.
- The SDK source code or solution.
Steps
Import the SDK source into a C# IDE, or open the solution in Visual Studio.
Create an instance of a client in the Huobi.SDK.Core.Client namespace.
Call a method provided by that client.
Expected outcome
A C# project configured to make a call through an SDK client.
Guide limitations
- The documented steps describe project setup and client invocation but do not specify a complete build or deployment procedure.
Configure credentials for private-data access
Add the key file described for accessing private API data.
Before you start
- An SDK solution.
- The private key material required by the selected signing mode.
Steps
Create a key.json file in the solution.
Add the required key value in the format described by the README.
Set the file's IDE property so it is copied to the output directory.
Expected outcome
The solution includes the credential file used by the documented private-data configuration.
Guide limitations
- The README says this configuration can be omitted when accessing only public data.
- The guide does not cover credential creation, permissions or key rotation.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 8 October 2026
- Original website title
- HuobiRDCenter/huobi_CSharp · Official homepage title · retained in its source language

