WalletMCP - Solana Blockchain MCP Server

Overview: What is WalletMCP - Solana Blockchain MCP Server?

WalletMCP is an advanced Model Context Protocol (MCP) server tailored for integrating seamlessly with AI applications and tools, specifically for interacting with the Solana blockchain. It leverages a range of technologies such as the Solana Web3.js SDK for blockchain communication, Zod for input validation, and TypeScript for robust type definitions. The primary goal is to offer developers an easy-to-use interface via MCP-compatible protocols, enabling them to perform operations like retrieving wallet transactions, accessing program logs, managing buffers, and sending SOL transfers.

🔧 Core Features & MCP Capabilities

WalletMCP supports a comprehensive suite of tools designed for interaction with the Solana blockchain. These tools are fully MCP-compliant, allowing integration into various AI applications via standardized protocols. Key features include:

• Retrieve Wallet Transactions and SOL Balances: The getTransactions tool allows developers to fetch recent wallet transactions easily.
• Access Program Logs: With the getProgramLogs command, users can query transaction logs from specific programs on the Solana blockchain.
• Manage Unused Rents (Buffers): Users can list and close BPF Upgradeable Loader buffers using the listBuffers and closeBuffer commands respectively.
• Send SOL Transactions Programmatically: The sendSolTransaction tool facilitates the transfer of SOL between wallets based on user-defined parameters.

These features are powered by MCP, which ensures compatibility with a wide range of AI applications such as Claude Desktop. By adhering to this protocol, WalletMCP enhances its utility for developers building complex workflows that require blockchain interaction via AI tools.

⚙️ MCP Architecture & Protocol Implementation

WalletMCP is built on the Solana Web3.js SDK and utilizes the Model Context Protocol (MCP) for tool registration and validation. The core of WalletMCP revolves around providing a well-defined set of API endpoints, each following strict schema rules encoded using Zod. These schemas ensure that all communication between the AI application and the server adheres to expected structures, preventing errors and enhancing reliability.

The protocol flow diagram below illustrates how an AI application (like Claude Desktop) interacts with WalletMCP:

graph TB
    A[AI Application] -->|MCP Client| B[MCP Protocol]
    B --> C[MCP Server]
    C --> D[Data Source/Tool]
    style A fill:#e1f5fe
    style C fill:#f3e5f5
    style D fill:#e8f5e8

This diagram shows the seamless flow of data and commands between an AI application, the local MCP client, and ultimately to WalletMCP where specific blockchain operations are performed.

🚀 Getting Started with Installation

To deploy WalletMCP, follow these steps:

1. Clone the Repository

   git clone https://github.com/paulfruitful/WalletMCP
   

2. Change into the Project Directory

   cd walletMCP
   

3. Install Dependencies

   npm install
   

4. Build the MCP Server

   npm run build
   

Once these steps are completed, you can test WalletMCP using the provided instructions.

💡 Key Use Cases in AI Workflows

WalletMCP serves as a critical component for developers who need to integrate blockchain interactions into their AI workflows. For instance, imagine an AI application that needs to verify wallet balances before executing high-value transactions. With WalletMCP, this process can be automated seamlessly.

Another use case involves tracking transaction history and sending notifications based on specific events such as buffer closures or receipt of SOL. This real-time data collection is crucial for building trust and transparency in financial applications powered by AI.

By leveraging WalletMCP, developers can create more sophisticated and reliable applications that interact with the Solana blockchain while maintaining security and usability.

🔌 Integration with MCP Clients

WalletMCP supports integration with several popular MCP clients such as Claude Desktop. To connect your instance of WalletMCP to an MCP client like Claude Desktop, follow these steps:

On Windows:

code $env:AppData\Claude\claude_desktop_config.json

On Mac/Linux:

code ~/Library/Application\ Support/Claude/claude_desktop_config.json

Open the claude_desktop_config.json file and add WalletMCP as a new MCP server entry:

{
  "mcpServers": {
    "walletMCP": {
      "command": "node",
      "args": [
          "YOUR_PATH_PREFIX\\WalletMCP\\build\\index.js"
      ]
  }
  }
}

After adding this configuration, the MCP client will recognize WalletMCP and allow seamless interaction through its tools.

📊 Performance & Compatibility Matrix

WalletMCP has broad compatibility across various AI applications and tools. The following matrix outlines the current status of integration with different clients:

MCP Client	Resources	Tools	Prompts	Status
Claude Desktop	✅	✅	✅	Full Support
Continue	✅	✅	❌	Tools Only
Cursor	❌	✅	❌	Tools Only

This matrix highlights the broad compatibility of WalletMCP, ensuring that developers can seamlessly integrate it into their workflows.

🛠️ Advanced Configuration & Security

Security Considerations

• Private Key Protection: Always protect your private keys. They are never stored or transmitted by WalletMCP.
• Encryption and Decryption: All sensitive data is handled through secure channels, ensuring that privacy remains paramount during tool usage.

Configuration Sample

Here's an example of how to configure WalletMCP in the MCP client configuration:

{
  "mcpServers": {
    "walletMCP": {
      "command": "node",
      "args": [
        "./WalletMCP/build/index.js"
      ],
      "env": {
        "API_KEY": "your-api-key"
      }
    }
  }
}

This sample configuration allows you to specify how the server should be initialized and any necessary environment variables.

❓ Frequently Asked Questions (FAQ)

Q1: How does WalletMCP ensure security?

WalletMCP employs robust security measures, including private key protection and secure data handling. Private keys are never stored or logged by the server.

Q2: Are all API tools supported across MCP clients?

Currently, not all tools are available on every client. For example, prompt-based interactions may differ between clients, but basic tools like transaction retrieval and buffer management work universally.

Q3: Can WalletMCP be extended to support additional blockchain networks?

Yes, by following the protocol architecture, extending WalletMCP to support other blockchain networks is feasible through minor modifications or new modules.

Q4: What are the dependencies required for installation?

WalletMCP requires Node.js v16+ and either Yarn or npm. These dependencies provide a robust environment for running and building the MCP server.

Q5: How do I troubleshoot connection issues with WalletMCP?

Check if your configuration in the MCP client is correct, verify network connectivity to the WalletMCP server, and ensure all required dependencies are installed correctly on both the server and client sides.

👨‍💻 Development & Contribution Guidelines

This project welcomes contributions from developers building AI applications or MCP integrations. If you have ideas for improvements, feel free to open an issue or submit a pull request. Contributions can range from bug fixes to new features that enhance existing functionality.

🌐 MCP Ecosystem & Resources

WalletMCP is part of the broader Model Context Protocol ecosystem, which supports interoperability among various AI applications and blockchain tools. For more information on MCP and its implementations, visit the official MCP documentation and community forums.

By integrating WalletMCP, developers can unlock new possibilities for creating sophisticated AI-driven applications that interact with the Solana blockchain seamlessly.

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This comprehensive guide should help you understand the capabilities and integration benefits of using WalletMCP as an MCP server in your AI workflows.