Prompt Rejector

v1.0.1Securitystable

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

io-github-revsmoke-promptrejectormcpmcpai-integration
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What is Prompt Rejector?

Prompt Rejector is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to security gateway for ai agents: detects prompt injections, jailbreaks, and common vulnerabilities.

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

This server falls under the Security category on MCPgee, the world's largest MCP server directory with 33,000+ servers.

Features

  • Security gateway for AI agents: detects prompt injections, j

Use Cases

Security gateway for AI agents: detects prompt injections, jailbreaks, and commo
Community

Maintainer

LicenseMIT
Languagetypescript
Versionv1.0.1
UpdatedJan 28, 2026
Statushealthy
Maintenanceactive

Works with

ClaudeOpenAIwindowsmacoslinux

Installation

NPM

npx -y prompt-rejector

Manual Installation

npx -y prompt-rejector

Configuration

Configuration Details

Config File

claude_desktop_config.json

Performance

Response Metrics

Response Time< 200ms
ThroughputMedium

Resource Usage

Memory UsageLow
CPU UsageLow

Frequently Asked Questions about Prompt Rejector

What is Prompt Rejector?

Prompt Rejector is a Model Context Protocol (MCP) server that security gateway for ai agents: detects prompt injections, jailbreaks, and common vulnerabilities. It connects AI assistants to external tools and data sources through a standardized interface.

How do I install Prompt Rejector?

Install via npm with the command: npx -y prompt-rejector. Then add the server configuration to your AI client's JSON config file (e.g., claude_desktop_config.json or .cursor/mcp.json).

Which AI clients work with Prompt Rejector?

Prompt Rejector works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.

Is Prompt Rejector free to use?

Yes, Prompt Rejector is open source and available under the MIT license. You can use it freely in both personal and commercial projects.

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Quick Config Preview

{ "mcpServers": { "io-github-revsmoke-promptrejectormcp": { "command": "npx", "args": ["-y", "prompt-rejector"] } } }

Add this to your claude_desktop_config.json or .cursor/mcp.json

Read the full setup guide →

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