# Helmet

> 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.

## Facts
- Page: https://tashan.sh/capability/pkg-mcp-helmet
- tashan id: pkg:mcp-helmet
- Source: https://github.com/ankitvirdi4/mcp-helmet
- npm: https://www.npmjs.com/package/mcp-helmet
- Type: npm
- Category: devtools
- tashan score: 35.0 / 100
- Adoption: 19.0
- Upkeep: 51.0
- Freshness: 69.0
- Evidence coverage: 100% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- npm downloads: 20/week
- Official: no

## Install

```sh
claude mcp add helmet -- npx -y mcp-helmet
```

## Security audit
- Known advisories: 0
- Install-time script: none declared
- Build provenance: not attested

Permissions are read from DECLARED dependencies only. Nothing is executed, so an empty result means "nothing declared", never "nothing possible".

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Measured 2026-08-14 by tashan (https://tashan.sh) from public evidence. Scorer s5.