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MCP Swift Example Server

by devyhan

Meta/ExamplesSwiftStdioClaude DesktopServer

This is a basic example demonstrating how to create a simple server that communicates over standard input/output (stdio) using the Model Context Protocol Swift SDK. This setup is compatible with applications like Claude Desktop.

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What is MCP Swift Example Server?

This is a Swift-based example server that implements the Model Context Protocol (MCP) and communicates via standard input/output (stdio). It provides a basic echo tool and demonstrates how to integrate with applications like Claude Desktop.

How to use MCP Swift Example Server?

  1. Clone the repository. 2. Build the server using swift build -c release. 3. Configure Claude Desktop by adding the server to the mcpServers object in your claude_desktop_config.json file, specifying the path to the compiled executable. 4. Run the server and then use the example client to interact with it.

Key features of MCP Swift Example Server

  • Setting up a basic MCP server

  • Defining and registering a custom tool (swift_echo)

  • Handling ListTools and CallTool requests

  • Using StdioTransport for communication

  • Detailed logging to stderr

Use cases of MCP Swift Example Server

  • Demonstrating MCP server implementation in Swift

  • Integrating custom tools with Claude Desktop

  • Learning how to use the Swift MCP SDK

  • Building simple command-line tool servers

FAQ from MCP Swift Example Server

What is MCP?

MCP stands for Model Context Protocol. It's a protocol for communication between applications and tools.

What is StdioTransport?

StdioTransport is a method of communication using standard input and output streams.

Where can I find the MCP specification?

You can find it at https://spec.modelcontextprotocol.io/

What are the minimum requirements to run this server?

macOS 13 or later and Swift 5.9 or later.

How do I refer to the server in Claude Desktop?

You refer to the server by the name you give it in the mcpServers object in your claude_desktop_config.json file (e.g., swift_echo_example).