mcpbeat

Promptrejectormcp MCP Server

io.github.revsmoke/promptrejectormcp
local only

Promptrejectormcp runs on your own machine — the client starts it, so there is no endpoint to ping. 25 installs a week from npm. Last commit 18 May 2026.

Security gateway for AI agents: detects prompt injections, jailbreaks, and common vulnerabilities.

Installs per day peak 21 · avg 5 · -36% w/w
a month agotoday
25
Installs / week
npm · prompt-rejector
2
Stars
1 open issues
18 May 2026
Last commit
0 releases in 90 days
ISC
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.

run in your terminal
claude mcp add promptrejectormcp -- npx -y prompt-rejector
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "promptrejectormcp": {
      "args": [
        "-y",
        "prompt-rejector"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.promptrejectormcp]
command = "npx"
args = ["-y", "prompt-rejector"]
.cursor/mcp.json
{
  "mcpServers": {
    "promptrejectormcp": {
      "args": [
        "-y",
        "prompt-rejector"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "promptrejectormcp": {
      "args": [
        "-y",
        "prompt-rejector"
      ],
      "command": "npx"
    }
  }
}

Promptrejectormcp — questions

Answers built from our own checks of this server.

Why is there no uptime for Promptrejectormcp?
Promptrejectormcp 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 prompt-rejector was installed 25 times last week.
How do I connect Promptrejectormcp?
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 prompt-rejector straight from npm; nothing to host, nothing to sign up for.
How many people use Promptrejectormcp?
The npm package prompt-rejector was installed 25 times in the last week. Week over week that is -36%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Promptrejectormcp open source?
Yes — it is published under the ISC licence, written in TypeScript, 2 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.