hyper-mcp
📦️ A fast, secure MCP server that extends its capabilities through WebAssembly plugins.
hyper-mcp is a high-performance MCP server built in Rust that extends AI assistant capabilities through WebAssembly plugins. It enables developers to write plugins in any language that compiles to WebAssembly, distribute them via OCI registries like Docker Hub, and run them securely in sandboxed environments. The server works with Claude Desktop, Cursor IDE, and other MCP-compatible applications, offering fine-grained security controls including memory limits, network restrictions, and cryptographic signature verification. Its lightweight architecture makes it suitable for deployment across serverless, edge, mobile, and IoT environments.
Key Features
Use Cases
- 01Extending Claude Desktop or Cursor IDE with custom tools for time calculations, QR code generation, and hashing
- 02Building secure AI workflows with restricted network and filesystem access for untrusted code execution
- 03Deploying AI capabilities to edge devices and IoT environments with minimal resource footprint
- 04Creating reusable plugin libraries distributed through GitHub Container Registry or Docker Hub
- 05Integrating third-party APIs (GitHub, GitLab, Yahoo Finance, Hacker News) into AI assistants
- 06Running Python or other language interpreters safely within sandboxed WASM environments
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hyper-mcp — FAQ
What is hyper-mcp?+
hyper-mcp is an MCP (Model Context Protocol) server written in Rust that extends AI assistants like Claude through WebAssembly plugins. It provides a secure, sandboxed environment for running tools written in any WASM-compatible language.
How do I install hyper-mcp?+
You can install hyper-mcp via Homebrew (brew install hyper-mcp), download pre-built binaries from GitHub Releases, or install from crates.io using cargo install hyper-mcp. You'll also need cosign installed if using OCI registry plugins with signature verification.
Which AI clients work with hyper-mcp?+
hyper-mcp works with Claude Desktop, Cursor IDE, Claude Code, and any other MCP-compatible application that supports the stdio transport protocol.
Do I need API keys or prerequisites?+
You need cosign installed for OCI plugin signature verification (unless you skip verification). Individual plugins may require their own API keys or credentials depending on what services they access (e.g., GitHub tokens for the GitHub plugin).
Is hyper-mcp free to use?+
Yes, hyper-mcp is open source and released under the Apache 2.0 license. The server and official plugins are free to use, modify, and distribute.
How do I configure plugins in hyper-mcp?+
Create a config.json file in the platform-specific config directory listing each plugin's URL (supporting oci://, file://, http://, https://, or s3:// schemes), optional description, and runtime settings like allowed hosts and memory limits. Then start hyper-mcp, which loads all configured plugins.
How do I install hyper-mcp?+
Open the source repository on GitHub and follow its README. hyper-mcp is a mcp server — MCP Agents Market links you directly to the official repo.
Is hyper-mcp free?+
hyper-mcp is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.