AI Security GuardReal-time security scanner for agent inputs (MCP, web, docs, email) that detects prompt injection and exfiltration and returns verdicts.

4.5 (6)

Reviewed by Daniel Nikulshyn·Updated June 2026

AI Security Prompt Injection Real-Time Scanning Agent Safety MCP Threat Detection Enterprise

Overview

AI Security Guard is a real-time security scanner for agent inputs (MCP, web, docs, email) that detects prompt injection and exfiltration. It provides verdicts and easy-to-use SDKs for secure agent management. The platform also includes education and research resources for understanding the security and agentic innovation landscape. The tool is designed to give users the skills, tools, and knowledge to protect themselves from security threats. It includes features such as supply chain protection, device hardening scans, and runtime scanning of content agents produce and ingest. AI Security Guard offers a user-friendly experience with features like health grade, security posture, and cost tracking. It can detect and block malicious packages and provide high visibility into agent activities. The platform also includes a free AI Security Action Pack with 15 expert articles mapped to OWASP Agentic Top 10 and 12 installable skills for Claude Code and Cursor. Overall, AI Security Guard provides powerful, always-on protection for agents with a focus on ease of use and education.

Key features

Supply chain protection
Device hardening scans
Runtime scanning of content
Token spend intelligence
Predictive risk analytics
Shield scanner with 14-phase device hardening scans

Pricing

Model: Free
Category: AI security
Rating: 4.5 / 5 (6)

Use cases

Block prompt injection in AI agents

Scan incoming agent inputs from MCP servers, web pages, and tools in real time to detect and block prompt injection attempts before they reach the model.

Prevent data exfiltration

Inspect documents and email content processed by agents to identify exfiltration attempts and return verdicts that gate downstream actions.

Secure document ingestion pipelines

Validate untrusted documents before they are passed to LLM workflows, ensuring malicious instructions embedded in files are flagged and quarantined.

Protect email-driven automations

Screen inbound emails consumed by AI assistants for hidden injection payloads, returning clear verdicts to allow or block processing.

Pros & Cons

Pros

Real-time security scanner for agent inputs
Detects prompt injection and exfiltration
Easy-to-use SDKs for secure agent management
Education and research resources for understanding security and agentic innovation
User-friendly experience with health grade, security posture, and cost tracking

Cons

Information on pricing is limited
Exact features and capabilities are not fully detailed

Reviews

4.5

Average from 6 ratings.

Margaret Whitfield

May 27, 2026

Skeptical, then convinced

I went in skeptical — most tools in this space overpromise. It actually delivers on the core workflow, and support is responsive caught me off guard. Pricing gets steep at scale is why this isn't a perfect score, still, I'd recommend giving it a real trial.

Wei Chen

Mar 1, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is the automation — handled better than most — and support is responsive. Worth the time if this is your use case.

Camille Laurent

Feb 10, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is the onboarding — handled better than most — and it is genuinely easy to set up. Pricing gets steep at scale is my one real gripe. Worth the time if this is your use case.

Pierre Dubois

Aug 22, 2025

Use it every day

Honestly didn't expect to like it this much. The API is exactly what I needed, and it saves real time. but I reach for it almost every day now and it just clicks.

Fatima Zahra

Jul 4, 2025

Compared a few options

Evaluated this against two competitors. Where it wins: the dashboard and it saves real time. Where it lags: pricing gets steep at scale. On balance the feature set — especially the core workflow — justifies the 4 stars for our use case.

Jamal Carter

Jun 20, 2025

Use it every day

Honestly didn't expect to like it this much. The API is exactly what I needed, and it saves real time. I do wish a few rough edges remain, but I reach for it almost every day now and it just clicks.

Q&A

What is the cost of using AI Security Guard?

Information on pricing is limited and not fully detailed.

Asked by Kenji Watanabe · Nov 19, 2025

Is AI Security Guard easy to use?

Yes, AI Security Guard offers a user-friendly experience with features like health grade, security posture, and cost tracking, as well as easy-to-use SDKs for secure agent management.

Asked by Odalys Reyes · Oct 27, 2025

What types of threats can AI Security Guard detect?

AI Security Guard detects prompt injection and exfiltration, and can also detect and block malicious packages.

Asked by Sami Virtanen · Oct 1, 2025

What types of inputs does AI Security Guard scan?

AI Security Guard scans agent inputs from MCP, web, docs, and email in real-time.

Asked by Liam O’Connor · Aug 24, 2025