Quick Start With Claude Desktop

Build the Server (Counter Example)
```
cargo build --release --example servers_std_io
```
This builds a standard input/output MCP server binary.

Add or update this section in your PATH-TO/claude_desktop_config.json

Windows

{
  "mcpServers": {
    "counter": {
      "command": "PATH-TO/rust-sdk/target/release/examples/servers_std_io.exe",
      "args": []
    }
  }
}

MacOS/Linux

{
  "mcpServers": {
    "counter": {
      "command": "PATH-TO/rust-sdk/target/release/examples/servers_std_io",
      "args": []
    }
  }
}

Ensure that the MCP UI elements appear in Claude Desktop The MCP UI elements will only show up in Claude for Desktop if at least one server is properly configured. It may require to restart Claude for Desktop.

Once Claude Desktop is running, try chatting:

counter.say_hello

Or test other tools like:

counter.increment
counter.get_value
counter.sum {"a": 3, "b": 4}

Client Examples

Client SSE, using reqwest and eventsource-client.
Client stdio, using tokio to spawn child process.
Everything, test with @modelcontextprotocol/server-everything
Collection, How to transpose service into dynamic object, so they will have a same type.

Rig A stream chatbot with rig
Simple Chat Client A simple chat client implementation using the Model Context Protocol (MCP) SDK.

npx @modelcontextprotocol/inspector