What is the key difference between Shieldapi MCP and Checker MCP?

Shieldapi MCP belongs to the Security category with local stdio execution, while Checker MCP belongs to the Security category with local stdio execution.

How do I install Shieldapi MCP or Checker MCP 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 Shieldapi MCP and Checker MCP free or paid?

Shieldapi MCP operates under a Freemium model (other). Checker MCP operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Shieldapi MCP lists 10 tools with 4 views and 1 GitHub stars. Checker MCP lists 3 tools with 2 views and 0 GitHub stars.

Can I use both Shieldapi MCP and Checker MCP 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

Shieldapi MCP vs Checker MCP

In-depth architectural comparison of the Shieldapi MCP and Checker MCP 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

Shieldapi MCP

Security · Local stdio

Quality: 56/100 (Good) | Auth: other

Checker MCP

Security · Local stdio

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

Verdict Summary: Choose Shieldapi MCP if you need specialized Security tools running via a local process. Choose Checker MCP 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 Shieldapi MCP when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Freemium).
You have access to required keys: SHIELDAPI_URL, SHIELDAPI_WALLET_PRIVATE_KEY.
Primary tools included: check_url, check_password, check_password_range.

Explore Shieldapi MCP Details

Choose Checker MCP 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: check_domain, list_checks, explain_check.

Explore Checker MCP Details

Feature & Specification Comparison

Specification	Shieldapi MCP alberthild Security	Checker MCP OksigeniaSL Security
Summary	Security intelligence for AI agents: password breach checks (900M+ HIBP hashes), email/domain/IP/URL reputation, prompt injection detection (200+ patterns), and skill supply chain scanning. Pay-per-request via x402 USDC micropayments or free demo mode, no API key needed.	Domain security & privacy checker: 17 live checks (SPF, DMARC, DKIM, DNSSEC, TLS, CAA, security headers) scored 0-100 with remediation. Local-first, zero telemetry. In the official MCP Registry as com.oksigenia/checker-mcp; npm @oksigenia/checker-mcp.
Category & Scope

Tools & Capabilities Breakdown

Shieldapi MCP Tools (10)

check_url

Check a URL for malware, phishing, and other threats. Uses URLhaus + heuristic analysis.

check_password

Check if a password hash (SHA-1) has been exposed in known data breaches via HIBP.

check_password_range

Look up a SHA-1 hash prefix in the HIBP k-Anonymity database.

check_domain

Check domain reputation: DNS records, blacklists (Spamhaus, SpamCop, SORBS), SPF/DMARC, SSL.

check_ip

Check IP reputation: blacklists, Tor exit node detection, reverse DNS.

check_email

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).

Shieldapi MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "alberthild-shieldapi-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "shieldapi-mcp"
      ],
      "env": {
        "SHIELDAPI_URL": "YOUR_SHIELDAPI_URL_HERE",
        "SHIELDAPI_WALLET_PRIVATE_KEY": "YOUR_SHIELDAPI_WALLET_PRIVATE_KEY_HERE"
      }
    }
  }
}

Checker MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "oksigeniasl-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@oksigenia/checker-mcp"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Shieldapi MCP More alternatives to Checker MCP Security category hub