audn.aiKeep your agents in check: MCP security for the enterprise
Secure agentic AI workflows by giving security teams the visibility, policy control, and run-time protection needed to secure Model Context Protocol (MCP) deployments.
New tools = new risks
MCP gives AI agents real autonomy, but with that freedom comes a new class of risk. Each connection, tool, and server introduces another moving part that traditional security tools weren't built to see or control.
Unapproved MCP Servers
Malicious or unverified servers can expose tools that perform unauthorized actions or leak sensitive data.
Unapproved Tools
Even on trusted servers, unapproved tools can slip past security controls and act outside policy.
Malicious Tool Descriptions
Attackers can hide prompt injections inside tool metadata. Names, descriptions, or parameters that seem harmless but change how an AI model behaves.
Post-approval Integrity
Server or tool metadata changes after approval could signal tampering or a silent "rug pull" attack in which a trusted tool is quietly rewritten to do harm.
Your security command center for MCP
Identify all MCP servers and tools to stop unauthorized access by malicious actors.
Discover all MCP servers
Identify every MCP server in your environment automatically.
Register approved servers
Eliminate shadow MCP by maintaining a trusted server registry.
Approve MCP tools
Prevent rogue or unauthorized tool usage with granular approvals.
Block rogue servers
Instantly block unregistered or malicious MCP servers.
Detect tampering
Continuously track changes in tool definitions to prevent poisoning.
Audit logging
Detailed audit trails for compliance and incident response.
Single MCP Proxy Architecture
MCP Defender acts as a single proxy that wraps all your MCP connections with security scanning and policy enforcement.
search_tools
Dynamically discover and enumerate all available tools across connected MCP servers.
describe_tools
Inspect tool schemas, parameters, and metadata, scanning for malicious descriptions.
execute_tools
Proxy tool execution through security checks, audit logging, and policy enforcement.
Download MCP Defender Proxy
Available for Windows and macOS. Install the proxy or configure it directly in your MCP client settings.
Quick Installation
{
"mcpServers": {
"mcp-defender": {
"command": "mcp-defender-proxy",
"args": ["--scan-all", "--audit-log"],
"env": {
"AUDN_API_KEY": "your-api-key"
}
}
}
}{
"mcpServers": {
"mcp-defender": {
"command": "mcp-defender-proxy",
"args": ["--mode", "cursor"],
"env": {
"AUDN_API_KEY": "your-api-key"
}
}
}
}AI policies built to defend MCP workflows
Protect the enterprise with comprehensive MCP-specific policies that inspect, audit, and enforce security in real time, giving you end-to-end visibility and control.
Governance
Ensure all agent interactions comply with enterprise data handling rules.
Audit Logging
Detailed audit trails deliver evidence for compliance and incident response.
Auto-revocation
Automatically revoke approval if tool descriptions or metadata change.
Secure your AI future today
Get MCP Defender Proxy and take control of your agentic AI workflows.