What is the key difference between Agentaegis Mcp and Kastell?

Agentaegis Mcp belongs to the Security category with local stdio execution, while Kastell belongs to the Security category with local stdio execution.

How do I install Agentaegis Mcp or Kastell in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Agentaegis Mcp and Kastell free or paid?

Agentaegis Mcp operates under a Freemium model (API Key required). Kastell operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Agentaegis Mcp lists 6 tools with 3 views and 1 GitHub stars. Kastell lists 6 tools with 2 views and 56 GitHub stars.

Can I use both Agentaegis Mcp and Kastell together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install Agentaegis Mcp or Kastell in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Agentaegis Mcp and Kastell free to use, or do they require API keys?

Agentaegis Mcp is listed under a Freemium model with API Key required . Kastell operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Agentaegis Mcp and Kastell at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both astafford8488-agentaegis-mcp and kastelldev-kastell as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Agentaegis Mcp has a Quality Score of 44 /100 ( Fair ) with 3 views, 0 installs, and 1 GitHub stars. Kastell holds a Quality Score of 52 /100 ( Good ) with 2 views, 0 installs, and 56 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Agentaegis Mcp vs Kastell

In-depth architectural comparison of the Agentaegis Mcp and Kastell MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Agentaegis Mcp

Security · Local stdio

Quality: 44/100 (Fair) | Auth: API Key required

Kastell

Security · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Verdict Summary: Choose Agentaegis Mcp if you need specialized Security tools running via a local process. Choose Kastell if your workspace requires Security integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Agentaegis Mcp when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: NVD_API_KEY, ABUSEIPDB_API_KEY, OTX_API_KEY, ABUSECH_API_KEY, HIBP_API_KEY.
Primary tools included: 28 cybersecurity tools including vuln scans, compliance, code security, and identity, Wraps open-source engines like nmap, Nuclei, Semgrep, trufflehog, trivy, Supports API key authentication with monthly limits and x402 USDC micropayments.

Explore Agentaegis Mcp Details

Choose Kastell when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: KASTELL_API_KEY, KASTELL_PROVIDER_TOKEN, KASTELL_SSH_KEY_PATH, KASTELL_CONFIG_PATH.
Primary tools included: 413 security checks in 29 categories, Automated safe fixes and 19-step production hardening, Compliance mapping to CIS, PCI-DSS, HIPAA.

Explore Kastell Details

Feature & Specification Comparison

Specification	Agentaegis Mcp astafford8488 Security	Kastell kastelldev Security
Summary	Security & trust layer for AI agents. Scan an MCP server or skill before you install it (scanmcpplugin, scanskill) — flags exfiltration, prompt-injection sinks, dangerous capabilities, install hooks and obfuscation → PROCEED/CAUTION/BLOCK. Plus vetendpoint (endpoint safety verdict before an agent calls or pays it) and 25 more tools: vuln scans, threat intel, compliance (SOC 2/ISO 27001/HIPAA), code security (SAST/secret/dependency), identity — 28 total. Per-call billing via API key or x402 USDC on Base; free discovery tier.	Server security auditing and hardening toolkit. 413 security checks across 29 categories (SSH, Firewall, Docker, TLS, HTTP Headers), CIS/PCI-DSS/HIPAA compliance mapping, 19-step production hardening, fleet management, and forensic evidence collection. Supports Hetzner, DigitalOcean, Vultr, and Linode. 13 MCP tools.
Category & Scope	Security	Security
Quality signal	44/100 (Fair)	52/100 (Good)
Transport Protocol	Local Subprocess (stdio)	Local Subprocess (stdio)
Auth Requirement	API Key required	No auth required
Pricing Model	Freemium	Free / Open Source
Required Env Vars	`NVD_API_KEYABUSEIPDB_API_KEYOTX_API_KEYABUSECH_API_KEYHIBP_API_KEY`	`KASTELL_API_KEYKASTELL_PROVIDER_TOKENKASTELL_SSH_KEY_PATHKASTELL_CONFIG_PATH`
Compatible Clients	Claude DesktopCursorWindsurfClineVS Code	Claude DesktopCursorWindsurfClineVS Code
Install path signal	`npx · low`	`npx · low`
Engagement & Health	3 views 0 copies 0 upvotes 1 stars	2 views 0 copies 0 upvotes 56 stars
Verified / Official	Community Listing	Community Listing
Open full listing	View Agentaegis Mcp Listing	View Kastell Listing

Tools & Capabilities Breakdown

Agentaegis Mcp Tools (6)

28 cybersecurity tools including vuln scans, compliance, code security, and identity

Wraps open-source engines like nmap, Nuclei, Semgrep, trufflehog, trivy

Supports API key authentication with monthly limits and x402 USDC micropayments

Provides HTTP and stdio transports for local or remote deployment

Includes usage logging, rate limiting, target validation, and sandboxing

Integrates external threat intel APIs (NVD, AbuseIPDB, OTX, HIBP, Shodan)

Kastell Tools (6)

413 security checks in 29 categories

Automated safe fixes and 19-step production hardening

Compliance mapping to CIS, PCI-DSS, HIPAA

Fleet management with multi-server support

Built-in MCP server with 17 AI tools

Support for Hetzner, DigitalOcean, Vultr, Linode

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Agentaegis Mcp Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "astafford8488-agentaegis-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "astafford8488-agentaegis-mcp"
      ],
      "env": {
        "NVD_API_KEY": "YOUR_NVD_API_KEY_HERE",
        "ABUSEIPDB_API_KEY": "YOUR_ABUSEIPDB_API_KEY_HERE",
        "OTX_API_KEY": "YOUR_OTX_API_KEY_HERE",
        "ABUSECH_API_KEY": "YOUR_ABUSECH_API_KEY_HERE",
        "HIBP_API_KEY": "YOUR_HIBP_API_KEY_HERE"
      }
    }
  }
}

Kastell Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "kastelldev-kastell": {
      "command": "npx",
      "args": [
        "-y",
        "kastelldev-kastell"
      ],
      "env": {
        "KASTELL_API_KEY": "YOUR_KASTELL_API_KEY_HERE",
        "KASTELL_PROVIDER_TOKEN": "YOUR_KASTELL_PROVIDER_TOKEN_HERE",
        "KASTELL_SSH_KEY_PATH": "YOUR_KASTELL_SSH_KEY_PATH_HERE",
        "KASTELL_CONFIG_PATH": "YOUR_KASTELL_CONFIG_PATH_HERE"
      }
    }
  }
}

Frequently Asked Questions

Agentaegis Mcp is categorized under Security and uses a local stdio subprocess. In contrast, Kastell belongs to Security using local stdio subprocess. Select Agentaegis Mcp when you need capabilities focused on security and Kastell when you require tools for security.

More alternatives to Agentaegis Mcp More alternatives to Kastell Security category hub