MCP Gateway
Complete visibility and control over every agentic AI interaction across clients and servers, ensuring secure, governed workflows enterprise wide.
Helpful Resources
How it works
Short summary of step one
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Short summary of step two
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Short summary of step three
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Overview
The Harmonic MCP Gateway is a developer-friendly, locally installed gateway that gives security teams complete visibility and control over their organization's agentic AI ecosystem.
It transparently intercepts all MCP traffic, allowing security teams to discover what clients and servers are in use, enforce granular policies to block risky actions, and—most importantly—apply Harmonic's industry-leading sensitive data models to prevent the exposure of critical intellectual property and other sensitive information.
Visibility
Automatically discover and inventory all MCP clients (e.g., Cursor, Claude Code) and servers (official vendor and locally built) in use.
Understand which employees are using which clients or servers and how frequently via dashboards and saved views.
Control
Define and enforce global policies to block entire MCP servers or restrict specific high-risk capabilities (e.g. tools that can write to production databases). Use existing Harmonic sensitive data models to inspect MCP traffic in real-time, identifying unstructured sensitive data like source code, financial projections, and strategic plans.
When sensitive data is detected, we don't just block the action and break the workflow. The gateway provides contextual, detection-specific feedback to the MCP client. This coaches the AI agent on why an action was blocked, allowing it to find a safe, alternative path to complete its task, thereby reducing developer friction and enabling safe AI adoption.
FAQs
Quick answers about Harmonic Security
Harmonic does not rely on a fixed list or single category of AI tools. It finds AI wherever it appears and evaluates the actual data being shared, delivering controls that Netskope and Zscaler cannot match.
Deployment takes only minutes and can be rolled out to your entire organization through Group Policy Object, Microsoft Intune, JAMF or Kandji. The lightweight gateway requires no complex infrastructure or configuration and runs seamlessly on Windows, macOS, and Linux, providing every team with an immediate and consistent secure foundation for agentic workflows.
Harmonic uses purpose built small language models that understand user intent and sensitive data in milliseconds. This low latency analysis lets you enforce inline controls without slowing work down, rather than staying stuck in passive monitor mode.
Harmonic can be installed with a range of MDM tools, such as Kandji, Intune, or Jamf. Read more here https://docs.harmonicsecurity.app/browser-extension
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