AI Security Guard vs Sickle
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
AI Security Guard compared with Sickle
| Detail | 
AI Security Guard | 
Sickle |
|---|
| What it does | Research-backed education and tools for securing autonomous AI agents
| Email MCP server for Claude, Cursor and other AI agents to access every mailbox you own
|
|---|
| Stage | Startup
| Not given
|
|---|
| Founded | 2025
| Not given
|
|---|
| Based in | US
| GB
|
|---|
| Pricing model | Paid
| Free trial
|
|---|
| Pricing | Not given
| Monthly: €8.99/month after 7-day free trial. Yearly: €30/year (€2.50/month equivalent, 72% savings). Includes both the Mac app and the MCP connector.
|
|---|
| Key features | - AgentGuard360 dashboard and Agent Proxy Tool Interface
- Supply chain protection blocking 11,000+ known malicious pip and npm packages
- 14-phase device hardening scans with predictive risk analytics
- Machine-learning-aided runtime scanning of agent content
- Jailbreak detection and prompt injection prevention
- Privacy-first architecture keeps data on device by default
- 500+ model pricing with budget tracking
- Protection SDK with single function call content scanning
- Learning Center with guides, how-tos, and CVE analysis
- Original research on agentic AI and LLM cost optimization
| - Search across multiple mailboxes simultaneously
- Read full email threads with conversation history
- Move, archive and mark emails as read
- Scoped permissions: read, change, and send separately
- Attach files up to 18 MB to drafts and emails
- Download and open email attachments
- Native macOS mail client included
- Support for multiple email providers
- Encrypted file handling during transfer
- Revoke access anytime within the hour
|
|---|
| What makes it different | - No PhD in security required to protect AI agents
- Free resources and research with optional paid tools
- Secure agents and environments in five minutes
| - Works with any MCP client, not locked to one AI platform
- No installation required; works on macOS, Windows and Linux
- Access unlimited email accounts simultaneously in one connection
- Send emails with opt-in permission and approval workflow
|
|---|
| Free plan | Not given
| Not given
|
|---|
| Open source | Not given
| Not given
|
|---|
| Platforms | Not given
| Not given
|
|---|
| Public API | Not given
| Not given
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 18 ● no change since last check | 13 ▲ +1 (up) since last check |
|---|
| Trust Flow (Majestic) | 2 | 8 |
|---|
| Citation Flow (Majestic) | 27 | 22 |
|---|
| Referring domains (Majestic) | 86 | 17 |
|---|
5 details filled in for both companies.
More alternatives to AI Security Guard More alternatives to Sickle