Zero-trust gateway for Model Context Protocol connections. Discover every MCP server in your enterprise, isolate execution, enforce per-request identity, and log everything to your SIEM — before attackers exploit the open STDIO backdoor.
14-day free trial. No credit card required for Starter.
Six capabilities that transform MCP from your biggest risk into a governed asset.
Network + host + supply-chain layered detection finds every MCP server — including those on localhost, random high ports, and hidden behind reverse proxies. You can't secure what you can't see.
Every MCP server runs in its own isolated container with minimal permissions. Blast radius limited — no host access, no cross-server network reach. The single most impactful security control.
No shared API keys. Every MCP call carries the specific user/agent identity via OIDC or OAuth 2.0. Full audit trail, no credential sharing, instant revocation on compromise.
Approval workflow for MCP servers. Admin reviews and signs each server before developers can deploy it. Provenance attestation with cryptographic verification — no untrusted packages.
Zero-trust tool-level access control. Define which users/agents can call which tools — deny all, permit by exception. Dynamic scope validation prevents privilege escalation.
Every tool invocation, auth attempt, and resource access is logged with OpenTelemetry. Native integration with Splunk, Datadog, Grafana, New Relic, and any OpenTelemetry collector.
Real attack vectors already demonstrated in production against enterprise MCP deployments.
MCP STDIO transport processes configuration parameters directly through the host shell without sanitization. ~200K instances vulnerable. Containers prevent host-level execution.
Hidden adversarial instructions embedded in tool descriptions — consumed by AI models, invisible to users. Our registry scans and rejects poisoned tool definitions before deployment.
Server passes review then silently swaps tool definitions. CVE-2025-54136 (Cursor IDE, CVSS 7.5). Our registry requires re-approval on every config change — no silent replacements.
One compromised server redefines the agent's understanding of adjacent trusted servers. Container isolation prevents cross-server communication by default.
1,862 publicly accessible MCP servers responding to unauthenticated requests (July 2025 scan). OAuth 2.1 + PKCE enforcement stops all unauthenticated connections.
53% of MCP servers use static long-lived secrets — one compromised server leaks credentials to every connected service. Per-request identity with short-lived tokens eliminates this.
Deploy in under an hour. No agent rewrites required.
Deploy the MCP Security Guard agent across your network. It scans all hosts, containers, and IDE configurations to build a complete inventory of every MCP server — including shadow deployments.
Each discovered server is assessed for vulnerabilities, supply chain provenance, and capability scope. Only approved servers are added to the registry. Everything else is quarantined.
All MCP traffic routes through the gateway. Container isolation, per-request auth, RBAC enforcement, and SIEM-ready logging are applied automatically. Alerts on anomalous behaviour.
Why the default MCP deployment is a compliance and security risk.
| Capability | Default MCP | MCP Security Guard |
|---|---|---|
| Container Isolation | ❌ No isolation | ✅ Per-server containers |
| Authentication | ❌ Optional (OAuth 2.1) | ✅ Enforced OIDC / OAuth 2.0 |
| Server Inventory | ❌ None | ✅ Automated discovery |
| Tool-Level RBAC | ❌ All-or-nothing | ✅ Least privilege per tool |
| Supply Chain Attestation | ❌ None | ✅ Cryptographic verification |
| SIEM Integration | ❌ No logging | ✅ OpenTelemetry + native |
| Rug Pull Detection | ❌ None | ✅ Re-approval on change |
| Tool Poisoning Detection | ❌ None | ✅ Registry-level scanning |
MCP (Model Context Protocol) is Anthropic's open standard connecting AI agents to enterprise tools and data. It's now adopted by OpenAI, Google DeepMind, and Microsoft — over 150M package downloads. The protocol deliberately leaves security enforcement to the platform, and the default STDIO transport executes OS commands through the host shell without sanitization. The Cloud Security Alliance called it a "systemic crisis" in May 2026.
No. MCP Security Guard operates as a transparent gateway. Your agents and MCP servers connect to the guard instead of directly to each other. No code changes, no SDK swaps, no downtime. Deployment takes under an hour.
Traditional API gateways authenticate callers — they don't control what actions an authenticated caller can take. MCP Security Guard enforces tool-level RBAC, container isolation, supply chain attestation, and detects semantic attacks (tool poisoning, prompt injection) that no API gateway can catch.
Yes. The Enterprise plan supports fully on-premises deployment with no SaaS dependencies — required for financial services, healthcare, and government clients with data residency requirements. Kubernetes Operator and Helm charts included.
Our discovery phase inventories every running MCP server, maps its capabilities and blast radius, and classifies risk. High-risk servers are quarantined; approved ones are migrated through the gateway with zero downtime. A typical enterprise completes the full migration in under a week.
MCP Security Guard blocks exploitation of all 7+ published MCP CVEs including CVE-2025-49596 (CVSS 9.4, unauthenticated command injection), CVE-2025-54136 (MCPoison, rug pull via Cursor IDE), CVE-2026-30623 (LiteLLM, critical severity), and any future STDIO-based attacks. Our zero-trust architecture makes exploit chains unviable regardless of protocol-level flaws.
~200,000 vulnerable instances. 1,862 exposed servers. 7+ CVEs with no protocol-level fix. The MCP security clock is ticking — deploy your guard now.