What is the key difference between Agent Action Gate and Gatekeeper?

Agent Action Gate belongs to the Security category with local stdio execution, while Gatekeeper belongs to the Security category with local stdio execution.

How do I install Agent Action Gate or Gatekeeper 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 Agent Action Gate and Gatekeeper free or paid?

Agent Action Gate operates under a Free / Open Source model (No auth required). Gatekeeper operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Agent Action Gate lists 6 tools with 1 views and 0 GitHub stars. Gatekeeper lists 6 tools with 1 views and 0 GitHub stars.

Can I use both Agent Action Gate and Gatekeeper 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.

Side-by-Side Model Context Protocol Comparison

Agent Action Gate vs Gatekeeper

In-depth architectural comparison of the Agent Action Gate and Gatekeeper 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

Agent Action Gate

Security · Local stdio

Quality: 31/100 (Emerging) | Auth: No auth required

Gatekeeper

Security · Local stdio

Quality: 41/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Agent Action Gate if you need specialized Security tools running via a local process. Choose Gatekeeper 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 Agent Action Gate 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: AAG_PROVE_TOKEN, AAG_KILL_SWITCH.
Primary tools included: Deny-by-default handling for unknown actions, Human-in-the-loop proof for high-tier operations, Hash-chained JSONL Action Ledger.

Explore Agent Action Gate Details

Choose Gatekeeper 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).
Primary tools included: Policy-based allow, deny, and approval decisions, Sensitive-boundary rule pack, USD, token, and call budgets.

Feature & Specification Comparison

Specification	Agent Action Gate Security	Gatekeeper Security
Summary	Gate/Prove: deny unattended destructive agent tools. Instant Audit $499 on a2zsoc.com.	Run MCP tool calls through Runestone Gatekeeper — policy enforcement, human approval, audit.
Category & Scope	Security	Security
Quality signal

Tools & Capabilities Breakdown

Agent Action Gate Tools (6)

Deny-by-default handling for unknown actions

Human-in-the-loop proof for high-tier operations

Hash-chained JSONL Action Ledger

MCP stdio tools for gate checks and ledger verification

Kill switch for emergency blocking

Python API for direct MCP call evaluation

Gatekeeper Tools (6)

Policy-based allow, deny, and approval decisions

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).

Agent Action Gate Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "agent-action-gate": {
      "command": "npx",
      "args": [
        "-y",
        "agent-action-gate"
      ],
      "env": {
        "AAG_PROVE_TOKEN": "YOUR_AAG_PROVE_TOKEN_HERE",
        "AAG_KILL_SWITCH": "YOUR_AAG_KILL_SWITCH_HERE"
      }
    }
  }
}

Gatekeeper Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "gatekeeper": {
      "command": "npx",
      "args": [
        "-y",
        "@runestone-labs/gatekeeper-mcp"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Agent Action Gate More alternatives to Gatekeeper Security category hub