What is the key difference between Shield and Impri?

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

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

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

Which MCP server has more tools and community activity?

Shield lists 6 tools with 3 views and 8 GitHub stars. Impri lists 6 tools with 1 views and 3 GitHub stars.

Can I use both Shield and Impri 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

Shield vs Impri

In-depth architectural comparison of the Shield and Impri 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

Shield

Security · Local stdio

Quality: 60/100 (Good) | Auth: No auth required

Impri

Security · Local stdio

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

Verdict Summary: Choose Shield if you need specialized Security tools running via a local process. Choose Impri 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 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

Choose Impri 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: REST API to push, list, and manage approval actions, Web, mobile, and Slack/Discord/Telegram inbox interfaces, Self-hostable with Docker Compose or available as a cloud service.

Explore Impri Details

Feature & Specification Comparison

Specification	Shield AperionAI Security	Impri sekera-radim Security
Summary	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.	Human-in-the-loop approval inbox for AI agents. An agent submits a proposed action (send email, post comment, run a command) via impripushaction, a human approves, rejects, or edits it from a web, mobile, or Slack/Discord/Telegram inbox, and the agent only proceeds on an approved decision. The gate is a data dependency, not a prompt. Full audit trail, self-hostable (MIT, Docker Compose). npx @impri/mcp

Tools & Capabilities Breakdown

Shield Tools (6)

Pre-execution MCP call guardrails

TOFU tool-catalog pinning

Tool description and result scanning

Approval gates and audit logging

Native agent hooks

Secret cloaking and taint tracking

Impri Tools (6)

REST API to push, list, and manage approval actions

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).

Shield Configuration

mcpServers (Claude Desktop / Cursor)

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

Impri Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sekera-radim-impri": {
      "command": "npx",
      "args": [
        "-y",
        "@impri/mcp"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Shield More alternatives to Impri Security category hub