hyper-mcp is a WebAssembly-based MCP server that enables secure, extensible plugin execution for AI applications. It connects to Claude Desktop, Cursor IDE, and other MCP-compatible clients while allowing developers to extend functionality with plugins written in any language that compiles to WebAssembly. Key features of hyper-mcp: - Multi-language plugin development: Build plugins in Rust, Go, C, or any language targeting WASM - OCI registry distribution: Publish and load plugins from standard container registries like Docker Hub and GitHub Container Registry, complete with Sigstore signing and verification - Sandboxed execution: Memory-safe runtime with fine-grained permissions controlling network, filesystem, and resource access - Full protocol support: Compatible with stdio, SSE, and streamable-http MCP transport protocols - Lightweight deployment: Runs efficiently on resource-constrained environments from serverless functions to IoT devices and mobile platforms - Cross-platform: Native support for Linux, macOS, and Windows operating systems

[](https://crates.io/crates/hyper-mcp) [](#license) [](https://github.com/tuananh/hyper-mcp/issues)

hyper-mcp

⚠️ NOTICE: PROJECT TRANSFERRED

This project has been transferred to https://github.com/joseph-wortmann/hyper-mcp

Please refer to the new repository for the latest updates and contributions.

A fast, secure MCP server that extends its capabilities through WebAssembly plugins.

What is it?

hyper-mcp makes it easy to add AI capabilities to your applications. It works with Claude Desktop, Cursor IDE, and other MCP-compatible apps. Write plugins in your favorite language, distribute them through container registries, and run them anywhere - from cloud to edge.

Features

Security

Built with security-first mindset:

Getting Started

1. Create your config file: - Linux: $HOME/.config/hyper-mcp/config.json - Windows: {FOLDERID_RoamingAppData}. Eg: C:\Users\Alice\AppData\Roaming - macOS: $HOME/Library/Application Support/hyper-mcp/config.json

{
  "plugins": {
    "time": {
      "url": "oci://ghcr.io/tuananh/time-plugin:latest"
    },
    "qr_code": {
      "url": "oci://ghcr.io/tuananh/qrcode-plugin:latest"
    },
    "hash": {
      "url": "oci://ghcr.io/tuananh/hash-plugin:latest"
    },
    "myip": {
      "url": "oci://ghcr.io/tuananh/myip-plugin:latest",
      "runtime_config": {
        "allowed_hosts": ["1.1.1.1"]
      }
    },
    "fetch": {
      "url": "oci://ghcr.io/tuananh/fetch-plugin:latest",
      "runtime_config": {
        "allowed_hosts": ["*"],
        "memory_limit": "100 MB",
      }
    }
  }
}

> 📖 For detailed configuration options including authentication setup, runtime configuration, and advanced features, see RUNTIME_CONFIG.md

Supported URL schemes:

2. Start the server:

$ hyper-mcp

Using with Cursor IDE

You can configure hyper-mcp either globally for all projects or specifically for individual projects.

1. For project-scope configuration, create .cursor/mcp.json in your project root:

{
  "mcpServers": {
    "hyper-mcp": {
      "command": "/path/to/hyper-mcp"
    }
  }
}

2. Set up hyper-mcp in Cursor's settings:

3. Start using tools through chat:

Available Plugins

We maintain several example plugins to get you started:

V1 Plugins

These plugins use the v1 plugin interface. While still supported, new plugins should use the v2 interface.