hyper-mcp

A server that lets applications extend an MCP connection with WebAssembly plugins. MCP is a standard way for AI assistants to connect to tools and data sources; WebAssembly is a portable format for running compiled code.

In plain words
What is it for?
Use it when building or configuring an MCP setup that needs WebAssembly-based plugins.
Why use it?
It provides a way to add plugin-based extensions while keeping the server focused on connecting the assistant to external capabilities.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add hyper-mcp-rs/hyper-mcp
agentmods
npx agentmods add plugins/hyper-mcp-rs/hyper-mcp/hyper-mcp
Clone the repo
git clone --depth 1 https://github.com/hyper-mcp-rs/hyper-mcp

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

hyper-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/hyper-mcp/.claude-plugin/plugin.json · 15 lines

What it actually says

{
  "name": "hyper-mcp",
  "description": "A fast, secure MCP server that extends its capabilities through WebAssembly plugins",
  "version": "0.8.3",
  "author": {
    "name": "hyper-mcp-rs",
    "url": "https://github.com/hyper-mcp-rs/hyper-mcp"
  },
  "homepage": "https://github.com/hyper-mcp-rs/hyper-mcp",
  "repository": "https://github.com/hyper-mcp-rs/hyper-mcp",
  "license": "Apache-2.0",
  "keywords": ["mcp", "wasm", "plugins", "rust"],
  "mcpServers": "./.mcp.json"
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 15 lines scan A 1036671da0a8

Subscribe to this mod's changes

hyper-mcp is a plugin published in the GitHub repository hyper-mcp-rs/hyper-mcp (880 stars, last pushed 2d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.