Install CISA KEV Ransomware CVE, SSL CT Logs & Domain Recon in Cursor

What you need first

• Cursor, installed.
• Nothing else: the server runs on its publisher's machines and Cursor connects to it.

Steps

1. Open ~/.cursor/mcp.json, or create it. For one project only, use .cursor/mcp.json in that project.
2. Add this block. If the file already has mcpServers, add only the entry inside it.

{
  "mcpServers": {
    "cybersecurity-cve-ssl-mcp": {
      "url": "https://mcp.apify.com/?actors=b2b-quant-apis/cisa-kev-ransomware-vulnerability-auditor,b2b-quant-apis/b2b-ssl-tls-ct-log-subdomain-attack-surface-auditor,b2b-quant-apis/global-b2b-email-domain-security-auditor,b2b-quant-apis/icann-rdap-domain-whois-brand-recon"
    }
  }
}

3. Save the file. In Cursor's settings, find the server in the MCP section and turn it on if it is off.

Check it worked

Ask Cursor: List the tools of cybersecurity-cve-ssl-mcp.

If it does not start

401 Unauthorized

The endpoint wants a sign-in or a key. Sign in when Cursor asks.

Nothing changes after a restart

The file is not valid JSON any more. Look for a missing comma where the block was added.