Protect MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 2 489 installs a week from npm. Last commit 17 Sep 2026.
Signed receipts and Cedar policies for AI agent tool calls. Claude Code hooks, MCP gateway.
What the code does
We read the source, 18 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
this.child = spawn(command, args, { stdio: ['pipe', 'pipe', 'pipe'], env: childEnv });
import { readFileSync as readFileSyncCli, existsSync as existsSyncCli, appendFileSync as appendFileSyncCli, mkdirSync as mkdirSyncCli, readdirSync as readdirSyncCli, writeFileSync as writeFileSyncCli, statSync as statSyncCli, rmSync as rmSyncCli } from 'node:fs';
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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 mcp add protect-mcp -- npx -y protect-mcp{
"mcpServers": {
"protect-mcp": {
"args": [
"-y",
"protect-mcp"
],
"command": "npx"
}
}
}[mcp_servers.protect-mcp]
command = "npx"
args = ["-y", "protect-mcp"]{
"mcpServers": {
"protect-mcp": {
"args": [
"-y",
"protect-mcp"
],
"command": "npx"
}
}
}{
"mcpServers": {
"protect-mcp": {
"args": [
"-y",
"protect-mcp"
],
"command": "npx"
}
}
}Alternatives to Protect MCP
same job, measured the same wayHard spend cap, OS sandbox, and signed receipts for unattended coding agents like Claude Code.
Generate and manage Claude Code configs: CLAUDE.md, skills, agents, hooks, and MCP settings.
A portable persona for MCP clients — the same agent in Claude Code, Codex, Cursor and VS Code
Local MCP gateway that proxies AI clients to many MCP servers with a token-efficient code mode
Real-time chat for AI agents. Claude Code, Cursor, Cline and Codex join channels over MCP.
Content-addressed code graph with 22 MCP tools for AI agents.
Search the HeyClaude directory of Claude Code agents, MCP servers, skills, and tools.
A local receipt and approval gate for AI agent sessions. The agent can act, but it cannot sign.
Protect MCP — questions
Answers built from our own checks of this server.