Signal Sentinel Gateway
Real-time security enforcement for MCP connections
Coming Q2 2026
Signal Sentinel Gateway sits between your AI agents and MCP servers, enforcing security policies in real-time. Request validation, tool-level access control, PII redaction, behavioural anomaly detection, and comprehensive audit logging.
Available as SaaS with free, professional, enterprise, and defence tiers.
Planned capabilities
Policy-Based Access Control
Define granular access policies per tool, per user, per agent. Deny, allow, or require approval for specific capabilities. Supports role-based access control (RBAC) and attribute-based access control (ABAC).
Real-Time PII Redaction
Automatically detect and redact sensitive data before it reaches the AI agent. UK-focused PII detection (National Insurance numbers, NHS numbers, postcodes) with configurable custom patterns.
Behavioural Monitoring
Establish behavioural baselines for AI agents and tools. Detect anomalies in request patterns, frequency, or data access. Kill switch for rogue agent behaviour.
Comprehensive Audit Logging
Full structured audit log of all MCP traffic. Query, filter, and export logs for compliance, forensics, and incident response. Integrates with SIEM platforms.
On-Premises Deployment
Available for deployment in sovereign or classified environments. Run within your own infrastructure with no external dependencies. Air-gap compatible.
Zero-Trust Architecture
Every request is validated, every tool is authenticated, every action is logged. No implicit trust. Enforce security policies at the protocol level.
Register your interest
Be the first to know when Signal Sentinel Gateway launches. We will notify you when early access becomes available.
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