MCP Seatbelt MCP Server

by kryptosai

local only

MCP Seatbelt runs on your own machine — the client starts it, so there is no endpoint to ping. 159 installs a week from npm. Last commit 4 Aug 2026.

MCP runtime security proxy. Blocks dangerous AI agent tool calls with a policy engine.

Installs per day peak 285 · avg 58 · -76% w/w

a month agotoday

159

Installs / week

npm · @kryptosai/mcp-seatbelt

Stars

12 open issues

4 Aug 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp-seatbelt -- npx -y @kryptosai/mcp-seatbelt

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-seatbelt": {
      "args": [
        "-y",
        "@kryptosai/mcp-seatbelt"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-seatbelt]
command = "npx"
args = ["-y", "@kryptosai/mcp-seatbelt"]

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-seatbelt": {
      "args": [
        "-y",
        "@kryptosai/mcp-seatbelt"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp-seatbelt": {
      "args": [
        "-y",
        "@kryptosai/mcp-seatbelt"
      ],
      "command": "npx"
    }
  }
}

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MCP Seatbelt — questions

Answers built from our own checks of this server.

Why is there no uptime for MCP Seatbelt?

MCP Seatbelt runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @kryptosai/mcp-seatbelt was installed 159 times last week.

How do I connect MCP Seatbelt?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @kryptosai/mcp-seatbelt straight from npm; nothing to host, nothing to sign up for.

How many people use MCP Seatbelt?

The npm package @kryptosai/mcp-seatbelt was installed 159 times in the last week. Week over week that is -76%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is MCP Seatbelt open source?

Yes — it is published under the MIT licence, written in TypeScript, 3 stars on GitHub and 12 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.