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About

MCP Defender is an open source desktop application that functions as an AI firewall, designed to monitor and protect Model Context Protocol (MCP) communications. It acts as a secure proxy between AI applications and MCP servers, analyzing all communications for potential threats in real-time. It automatically scans and protects all MCP tool calls, providing advanced LLM-powered detection of malicious activity. Users can manage the signatures used during scanning, allowing for customizable security measures. MCP Defender identifies and blocks common AI security threats, including prompt injection, credential theft, arbitrary code execution, and remote command injection. It supports integration with various AI applications such as Cursor, Claude, Visual Studio Code, and Windsurf, with more applications to be supported in the future. It offers intelligent threat detection, alerting users as soon as it identifies any malicious activity being performed by AI apps.

About

Silmaril is a self-healing prompt injection defense designed to protect AI systems from increasingly complex, multi-step attacks that traditional guardrails fail to stop. It operates by wrapping inference calls and evaluating whether an execution sequence is leading toward a harmful outcome, rather than simply filtering inputs. It uses a multihead classifier that analyzes user intent, application context, and execution states together, enabling it to detect indirect injection, multi-turn attack chains, context poisoning, and tool abuse before damage occurs. Silmaril continuously strengthens its defenses through autonomous threat hunting agents that probe systems, discover vulnerabilities, and generate synthetic training data from real attack scenarios. These insights are used to retrain the model automatically, deploying updated protections in under an hour and propagating anonymized defenses across all deployments.

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI developers and security-conscious organizations seeking a solution to safeguard their AI applications against advanced threats by monitoring and protecting MCP communications in real-time

Audience

AI developers and organizations building agent-based systems who need real-time, adaptive protection against prompt injection and multi-step AI attacks

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

MCP Defender
United States
mcpdefender.com

Company Information

Simaril
United States
www.silmaril.dev/

Alternatives

Alternatives

Operant

Operant

Operant AI
Huawei WAF

Huawei WAF

Huawei Cloud
Prisma AIRS

Prisma AIRS

Palo Alto Networks

Categories

AI Security Supported

Categories

AI Security Supported

Integrations

Claude Supported
OpenAI Supported
Agent Development Kit (ADK) Not Supported
Claude Code Not Supported
Cloudflare Supported
CrewAI Not Supported
Cursor Supported
Devin Desktop Supported
Figma Supported
GitHub Supported
LangChain Not Supported
Meta AI Supported
OpenClaw Not Supported
Python Not Supported
TypeScript Not Supported
Vercel Not Supported
Visual Studio Code Supported

Integrations

Claude Supported
OpenAI Supported
Agent Development Kit (ADK) Supported
Claude Code Supported
Cloudflare Not Supported
CrewAI Supported
Cursor Not Supported
Devin Desktop Not Supported
Figma Not Supported
GitHub Not Supported
LangChain Supported
Meta AI Not Supported
OpenClaw Supported
Python Supported
TypeScript Supported
Vercel Supported
Visual Studio Code Not Supported
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