ZNN Walletapi Csharp is an open-source Zenon Wallet API for .NET, aimed at software developers who want to build wallet tools, dashboards or services on top of the Zenon network. It is not a finished wallet app with buttons and balances. Instead, your code calls it to read blockchain data, manage wallets and submit transactions.
The project is licensed under MIT and targets Microsoft .NET 8.0. Before you start, know that the last code update dates to May 2024, and the project has seen no recent development. Treat it as a reference implementation that may lag behind the network. The API needs a Zenon Node for full functionality, and it suits readers who are comfortable with C#, HTTP endpoints and token-based authentication.
What Is the Zenon Wallet API for .NET?
The Zenon Wallet API for .NET is a layer that sits between your application and the Zenon network. Instead of connecting to a blockchain directly and handling every detail of its protocol, your code sends requests to the API. The API then reads data from the chain, manages wallet operations and passes transactions along.
The project was designed to interface with the Zenon Alphanet, the test network where developers can try out their ideas before anything reaches a live environment. This makes it a practical starting point for experiments, prototypes and learning projects.
Because it is built on Microsoft .NET 8.0, the code follows the conventions familiar to C# developers. Its listed platforms are Linux and web-based environments, so if you plan to run it on Windows, expect to build the project yourself and check the repository for the exact steps that apply to your machine.
Who Should Use a Wallet API Like This?
This API is intended for developers and small technical teams. A typical user is someone building a backend service that needs to read Zenon data and perform wallet operations on behalf of an application. Another is a developer who wants a testbed for transaction flows before connecting a product to a real environment.
Consider a small team that runs a web dashboard showing recent Zenon activity for its users. The dashboard can call the API to read blockchain data, while a separate internal tool handles protected operations under stricter access rules. The API keeps those responsibilities in one tested codebase.
People who only want to hold and send coins through a graphical interface will find this project less suitable. It rewards technical skill and careful configuration, and it expects its user to understand what the code does.
Key Concepts: Nodes, Tokens and Wallet Secrets
Three ideas help explain how this API works. The first is the Zenon Node. A node is a computer running the network software that stores and checks blockchain data. The API needs a node to deliver full functionality, because it reads and submits information through that connection.
The second idea is the JSON Web Token. A token is a short, signed piece of text that proves a request is allowed to reach a protected route. A bearer token simply means that whoever holds it can use it, which is why tokens must be handled carefully and never shared.
The third is the wallet secret, often called a seed phrase. It is the master key from which a wallet's addresses are derived. Anyone who knows it can control the funds, so the API's wallet functions must be treated with the same caution you would give any tool that touches a private key.
Key features
Blockchain Data and Transactions
Wallet Management
Interactive Documentation and Swagger UI
JWT Bearer Authentication
Configurable Setup and Community Contributions
Supported coins
The API is built around the Zenon network and is designed to interface with the Zenon Alphanet. Through a connected Zenon Node, it can retrieve blockchain data and submit transactions. The project's materials do not present it as a general multi-chain tool, so if you need support for several unrelated blockchains, look for a different solution.
How to install ZNN Walletapi Csharp on Windows
- 1
Get the source from GitHub
Open the official repository at github.com/hypercore-one/znn_walletapi_csharp and download the code, or a release package from the Releases page if one is available. Download only from the official website or the project's GitHub page. Avoid copies on file-sharing sites, because a modified build could behave in ways you cannot see.
- 2
Install Microsoft .NET 8.0
Install .NET 8.0 from Microsoft's official download page. The SDK is needed to build the project from source, while the runtime is enough to run an already compiled build. Confirm the installation by opening a terminal and checking the installed version.
- 3
Verify the download
If the release provides a SHA-256 checksum or a signature, compare it with the file you downloaded before you run anything. If no checksum is published, check that the tag or commit matches the one shown on the repository page.
- 4
Build the project
Open the solution in Visual Studio, or open a terminal in the project folder and run the build command for .NET. Fix any errors before going further, and note any warnings about dependencies, since they can point to outdated packages.
-
Configure and start the API
Set a private secret for JWT tokens in the configuration before starting the application. Then launch the API and open the Swagger page it serves in your browser to confirm that the endpoints respond as expected.
System requirements
- Microsoft .NET 8.0
- Access to a Zenon Node for full functionality
- A user account for protected API routes, which must be requested from the project team
How to use ZNN Walletapi Csharp
Using the API well is mostly about preparation. Start with a test environment, make sure your node is reachable, and only then move on to wallet operations. The steps below follow the order most developers use.
- Run or connect to a Zenon Node and confirm that your API can reach it.
- Set a strong private secret for JWT tokens in the configuration file.
- Start the application and open the Swagger UI in your browser.
- Use the read endpoints first to fetch blockchain data and confirm the connection works.
- Request a token for a protected account. Remember that you need a user account for these routes.
- Call /api/wallet/init or /api/wallet/restore with a token that carries the Admin role claim, since these endpoints require it.
- Test transaction submission on the Alphanet before trying any real operation.
- Review token lifetime settings, because tokens do not expire by default.
Keep a log of the requests you send during testing. It helps you spot mistakes and shows what your application actually does with the wallet.
Pros & cons
- Open source under the MIT license, so the code can be read, reused and adapted
- Covers blockchain reads, wallet operations and transaction submission in one API
- Swagger UI makes endpoints easy to explore and test
- JWT bearer authentication protects sensitive routes
- Built on the current .NET 8.0 platform
- The last code update was in May 2024, so recent maintenance is limited
- Aimed at developers rather than end users, with no graphical wallet interface
- Full functionality requires a Zenon Node
- Protected routes require a user account arranged with the project team
- Tokens do not expire by default, so you must configure expiration yourself
Is ZNN Walletapi Csharp safe?
This API creates and manages wallets and submits transactions, so treat it as security-sensitive software. Download only from the official website or the project's GitHub repository, and verify the SHA-256 checksum or signature whenever one is published. Never enter a seed phrase on third-party websites, and never type it into any form that is not part of your own application.
Set a strong private secret for JWT tokens and configure token expiration, because tokens do not expire by default. Keep the secret out of public repositories.
The last code update was in May 2024, which means the project has not seen recent development. Review the code and its dependencies before using it with real funds, and check the latest version on the official website before you deploy anything.
- Official source only. Download from github.com/hypercore-one/znn_walletapi_csharp. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Coinomi, Exodus, Atomic Wallet, Electron Cash and Trust Wallet are finished wallet applications built for end users. They offer interfaces for sending, receiving and managing coins without writing code. Frame is a desktop Web3 wallet, and Mixin Messenger Desktop combines messaging with a built-in crypto wallet. Greenery focuses on bookkeeping for wallet activity.
ZNN Walletapi Csharp works differently. It is a programming interface, so its value lies in what your software can do with it. If you need a ready-made wallet for daily use, the applications above are a better fit. If you need to build a custom service on the Zenon network, this API gives you a documented starting point that a graphical wallet cannot replace.
Specifications
- Price
- Free
- Type
- Open source
- License
- MIT
- Latest version
- v0.2
- Last update
- 24 May 2024
- Windows support
- Yes (Windows build or installer)
- Source code
- github.com/hypercore-one/znn_walletapi_csharp
Frequently asked questions
No. It is a Zenon Wallet API for .NET, which means it is a programming interface for developers rather than a graphical wallet. You use it by calling its endpoints from your own code or from tools that send HTTP requests. Everyday users who want to send and receive coins through buttons and menus should look at a dedicated wallet application instead.
It can be used safely if you take the usual precautions. Download only from the official website or GitHub repository, verify the checksum or signature when available, and never enter a seed phrase on third-party sites. The last code update was in May 2024, so review the code and dependencies carefully before connecting it to real funds.
Yes, the project is free and released under the MIT license. That license allows you to read, modify and reuse the code, provided you follow its terms. Keep in mind that running the API also requires a Zenon Node, and operating a node has its own costs in hardware and time.
You need a Zenon Node for full functionality. The API is designed to work with the network through a node, so without one, many operations will not work as intended. Plan for a node connection early in your setup, and test the connection on the Alphanet before moving to any other environment.
The project is built to be compatible with Microsoft .NET 8.0. Install that version before building or running the code. Newer or older versions may cause compatibility problems, so stick with 8.0 unless the project documentation says otherwise for your setup.
Protected routes require a user account. The project asks people who want to try them out to contact the team directly. Once you have an account, you can request a token and use it to call protected endpoints. Never share your token, because anyone who holds it can use the route in your place.
The Admin role claim is a permission stored inside a token. The endpoints /api/wallet/init and /api/wallet/restore require it because they initialize and restore wallets, which are sensitive operations. Only tokens issued to trusted accounts should carry this claim, and you should check it whenever you change your token configuration.
Not in a visible way. The last code update was made on May 24, 2024, so development appears to have stopped for a while. The project remains open source, which means you can study its code and fork it. If you need long-term support, plan to maintain the code yourself or choose a more actively developed tool.
Verdict
ZNN Walletapi Csharp is best suited to .NET developers who want a documented, open-source starting point for reading Zenon blockchain data and building wallet-related services. It rewards technical skill, careful configuration and a thorough security review. Because the last code update dates to May 2024, treat it as a foundation to study and adapt rather than a finished product. Anyone who wants a ready-made wallet for everyday use should choose an end-user application instead.