mcp.zig

Overview

mcp.zig provides a native, high-performance implementation of the Model Context Protocol for the Zig programming language. The library offers both server and client frameworks with support for tools, resources, prompts, tasks, and rich content handling. It implements JSON-RPC 2.0 with capability negotiation, STDIO and HTTP transport options, and follows the MCP specification version 2025-11-25. The project includes comprehensive documentation, examples, tests, and is actively maintained with recent commits.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• greet

  Greet a user with a personalized message

  Try:Hello, can you greet me?Try:Can you say hello to John?
• search_files

  Search for files matching a pattern

  Try:Find all .zig files in the projectTry:Search for README files
• calculate

  Perform arithmetic calculations

  Try:Calculate 2 + 2Try:What's 15 multiplied by 3?
• weather_info

  Get weather information for a location

  Try:What's the weather in New York?Try:Tell me the forecast for London

Note: Tool names were inferred from the examples and documentation sections. The README doesn't have a dedicated 'Tools' section but shows examples of how to implement and use tools with specific names.

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Installation

# Latest development branch
zig fetch --save git+https://github.com/muhammad-fiaz/mcp.zig.git

# Zig 0.16.x (recommended)
zig fetch --save https://github.com/muhammad-fiaz/mcp.zig/archive/refs/tags/0.0.4.tar.gz

const mcp_dep = b.dependency("mcp", .{
    .target = target,
    .optimize = optimize,
});
exe.root_module.addImport("mcp", mcp_dep.module("mcp"));

{
  "mcpServers": {
    "zig-mcp": {
      "command": "zig",
      "args": ["run", "path/to/your/server.zig"]
    }
  }
}

FAQ

What MCP versions are supported?

This library implements MCP protocol version 2025-11-25, with compatibility for 2025-06-18, 2025-03-26, and 2024-11-05.

Can I create both servers and clients with this library?

Yes, mcp.zig includes both server framework for exposing tools, resources, and prompts, and client framework for connecting to MCP servers.

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