Mcp Helmet
mcp-helmet · by ankitvirdi4
Production middleware for MCP servers. Auto transport, content wrapping, health checks, graceful shutdown, auth, rate limiting, structured request logging. Wraps the official Model Context Protocol SDK.
No known CVEs
No license
Actively maintained
Last commit 2d ago
Works with most clients
Transport: stdio, sse, http
0 tools
Grade F
Step 1
Install in your client
Config is the same across clients — only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"mcp-helmet": {
"args": [
"-y",
"mcp-helmet"
],
"command": "npx"
}
}
}Are you the author?
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[](https://mcppedia.org/s/mcp-helmet)
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What Mcp Helmet does
Production middleware for MCP servers. Auth, sessions, health checks, graceful shutdown, transport ergonomics. Composable middleware borrowed in spirit from Express's helmet.
Test This Server
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y 'mcp-helmet' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
48/100across 5 weighted dimensions
0255075100
19
10
9
10
−52
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked mcp-helmet against OSV.dev.
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Frequently Asked Questions
- Is Mcp Helmet safe to use?
- Mcp Helmet has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
- How do I install Mcp Helmet?
- Mcp Helmet supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What AI clients work with Mcp Helmet?
- Mcp Helmet is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Mcp Helmet actively maintained?
- Mcp Helmet is actively maintained — last commit was 2 days ago. It has 4 GitHub stars.
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Discussion
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