What is the key difference between Rail Score and Shellward?

Rail Score belongs to the Security category with local stdio execution, while Shellward belongs to the Security category with local stdio execution.

How do I install Rail Score or Shellward 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 Rail Score and Shellward free or paid?

Rail Score operates under a Free / Open Source model (No auth required). Shellward operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Rail Score lists 9 tools with 0 views and 0 GitHub stars. Shellward lists 6 tools with 1 views and 129 GitHub stars.

Can I use both Rail Score and Shellward 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 Rail Score or Shellward 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 Rail Score and Shellward free to use, or do they require API keys?

Rail Score is listed under a Free / Open Source model with No auth required . Shellward 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 Rail Score and Shellward at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both rail-score and jnmetacode-shellward 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, Rail Score has a Quality Score of 49 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars. Shellward holds a Quality Score of 53 /100 ( Good ) with 1 views, 0 installs, and 129 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Rail Score vs Shellward

In-depth architectural comparison of the Rail Score and Shellward 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

Rail Score

Security · Local stdio

Quality: 49/100 (Fair) | Auth: No auth required

Shellward

Security · Local stdio

Quality: 53/100 (Good) | Auth: No auth required

Verdict Summary: Choose Rail Score if you need specialized Security tools running via a local process. Choose Shellward 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 Rail Score 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: rail_evaluate, rail_check_compliance, rail_detect_injection.

Explore Rail Score Details

Choose Shellward 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: 8-layer defense including prompt guard, input auditor, tool blocker, output scanner, Data loss prevention with full data return and outbound send blocking, PII detection for Chinese and international identifiers with low false positives.

Explore Shellward Details

Feature & Specification Comparison

Specification	R Rail Score Security	Shellward jnMetaCode Security
Summary	Responsible-AI guardrails for agents: scoring, prompt-injection & PII detection, DPDP compliance.	AI Agent Security Middleware & MCP Server with 8-layer defense including prompt injection detection, DLP data flow tracking, command blocking, and PII detection. 7 MCP tools, zero dependencies.
Category & Scope	Security	Security

Tools & Capabilities Breakdown

Rail Score Tools (9)

rail_evaluate

Score content across the 8 RAIL dimensions (optional `policy` enforcement)

rail_check_compliance

Check against gdpr, ccpa, hipaa, eu_ai_act, india_dpdp, india_ai_gov

rail_detect_injection

Detect prompt injection in untrusted text

rail_evaluate_tool_call

Allow/warn/block a tool call before it runs

rail_scan_tool_result

Scan a tool's output for PII + injection, return redacted text

rail_safe_regenerate

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).

Rail Score Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "rail-score": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ]
    }
  }
}

Shellward Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "jnmetacode-shellward": {
      "command": "npx",
      "args": [
        "-y",
        "shellward"
      ]
    }
  }
}

Frequently Asked Questions

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

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