What is the key difference between Pushary and Shield?

Pushary belongs to the Security category with local stdio execution, while Shield belongs to the Security category with local stdio execution.

How do I install Pushary or Shield 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 Pushary and Shield free or paid?

Pushary operates under a Free / Open Source model (No auth required). Shield operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Pushary lists 6 tools with 1 views and 1 GitHub stars. Shield lists 6 tools with 4 views and 11 GitHub stars.

Can I use both Pushary and Shield 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

Pushary vs Shield

In-depth architectural comparison of the Pushary and Shield 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

Pushary

Security · Local stdio

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

Shield

Security · Local stdio

Quality: 63/100 (Good) | Auth: No auth required

Verdict Summary: Choose Pushary if you need specialized Security tools running via a local process. Choose Shield 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 Pushary 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: send_notification, ask_user, wait_for_answer.

Explore Pushary Details

Choose Shield 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: Pre-execution MCP call guardrails, TOFU tool-catalog pinning, Tool description and result scanning.

Explore Shield Details

Feature & Specification Comparison

Specification	Pushary Security	Shield AperionAI Security
Summary	Push notifications and human-in-the-loop approvals for AI agents, with a cross-agent audit trail.	Local guardrail proxy for AI coding agents. Wraps any MCP server (stdio or Streamable HTTP) and blocks destructive tool calls — DROP TABLE, rm -rf, force-push — before they execute. MCP supply-chain protection: TOFU tool-catalog pinning against rug pulls, plus tool-description and tool-result scanning for tool poisoning and prompt injection. 51 starter rules, approval gates, audit logging. Single binary, Apache-2.0.
Category & Scope

Tools & Capabilities Breakdown

Pushary Tools (6)

send_notification

Send a push notification with optional rich context (file changes, errors, next steps)

ask_user

Ask the user a question via push - yes/no, multiple choice, or free text

wait_for_answer

Long-poll for the user's response to a question

cancel_question

Cancel a pending question that's no longer relevant

list_sessions

Read-only view of your live agent sessions and pending questions

propose_scope

Ratify the boundary of a run: file globs, enforced on supported hosts, or a recorded promise when the run changes no files

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).

Pushary Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "pushary": {
      "command": "npx",
      "args": [
        "-y",
        "@pushary/agent-hooks@latest"
      ]
    }
  }
}

Shield Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "aperionai-shield": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-postgres"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Pushary More alternatives to Shield Security category hub Canonical compare URL