Javelin, a Bay Area–based AI security company, has officially launched MCP Security, a comprehensive defense-in-depth solution designed to safeguard the Model Context Protocol (MCP) the critical link between AI assistants, enterprise data, and tools. By integrating Javelin Ramparts, an MCP scanner, with Javelin MCP Runtime Guardrails, the company now enables real-time policy enforcement at the exact point where tools and data connect.

With this release, Javelin introduces shift-left scanning combined with runtime security controls. As a result, enterprises can effectively close the most vulnerable access points without disrupting workflows. This approach delivers what Javelin calls end-to-end agentic protection that organizations can rely on.

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Addressing Growing AI Threats

As enterprises rapidly scale agentic AI, attackers are increasingly turning to agent hijacking and indirect prompt injections where malicious instructions are hidden within business content or third-party data. Recent demonstrations have shown that poisoned content can trigger harmful real-world outcomes, further highlighting the urgency for strong runtime guardrails.

Sharath Rajasekar, CEO and Co-founder of Javelin, emphasized the importance of proactive security measures: “Waiting for an incident to prove the need for agent security is not a strategy; it’s a cost center that erodes trust and brand equity. MCP Security brings shift-left scanning and runtime policy to the exact moment agents connect to tools and data closing the most vulnerable paths: supply chain, prompt injection, and unsafe tool calls without slowing teams down.”

Why the Launch Matters

The timing of this launch is critical. MCP is rapidly becoming the go-to way to connect assistants with apps and data, thanks to simple one-click installs that make adoption faster and easier. However, evolving threats such as semantic prompt injections continue to bypass basic safeguards, creating risks at scale.

Industry data reinforces these challenges. According to IBM, 97% of AI-related security incidents lacked proper access controls, while 63% lacked formal governance showing a clear gap in enterprise readiness. By deploying mature AI controls, organizations can not only reduce breach costs but also maintain innovation velocity.

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Key Features of MCP Security

  • Javelin Ramparts: Provides pre-deployment risk assessments by scanning servers and tool manifests for supply-chain and poisoning vulnerabilities. Findings are prioritized, audit-ready, and mapped to OWASP/MITRE standards, ensuring smooth integration with runtime guardrails.
  • MCP Runtime Guardrails: Enforces real-time security policies at the MCP boundary. Teams can allow, block, or flag agent actions for review, protecting live data flows without impacting productivity. It also generates standardized, audit-ready compliance evidence.

Delivering Enterprise Value

By combining Ramparts with Runtime Guardrails, Javelin delivers a holistic defense layer for AI-enabled applications. This solution helps enterprises:

  • Reduce risk and cost by blocking abuse paths and reinforcing AI governance.
  • Accelerate AI rollout by identifying risks early and containing live threats.
  • Easily show compliance with reports that are always audit-ready and built to match regulatory requirements.

Ultimately, MCP Security positions Javelin as a key enabler of secure, scalable, and compliant agentic AI adoption, ensuring enterprises can innovate without compromising trust or safety.

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