Koskamo

WhoisJSON MCP

An MCP server that exposes WHOIS registration data, DNS records, SSL/TLS certificate details, and domain availability checks as tools for AI assistants like Claude, Cursor, and Windsurf.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

WhoisJSON MCP logo, by WhoisjsonCommunity listingLocal stdioSource reviewed; not executedPublished by Whoisjson
You need:Sign up at whoisjson.com and copy your API key from the dashboard.
Vendor documentation

What you can do with it

  • Retrieve WHOIS registration data for a domain
  • Fetch all DNS records for a domain
  • Check SSL/TLS certificate validity
  • Verify if a domain is available for registration

Source and maintenance

Community listingRegistry 1.0.3
mcp-registry: io.github.Whoisjson/mcp-server@1.0.3Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@whoisjson/mcp-server 1.0.3

npm
@whoisjson/mcp-server package definition
{
  "version": "1.0.3",
  "transport": "stdio",
  "identifier": "@whoisjson/mcp-server",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "WHOISJSON_API_KEY",
      "isRequired": true,
      "description": "Your WhoisJSON API key from whoisjson.com/dashboard"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "whoisjson-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server@1.0.3"
      ],
      "env": {
        "WHOISJSON_API_KEY": "<YOUR_WHOISJSON_API_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "whoisjson-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server@1.0.3"
      ],
      "env": {
        "WHOISJSON_API_KEY": "<YOUR_WHOISJSON_API_KEY>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "whoisjson-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server@1.0.3"
      ],
      "env": {
        "WHOISJSON_API_KEY": "<YOUR_WHOISJSON_API_KEY>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "whoisjson-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server@1.0.3"
      ],
      "env": {
        "WHOISJSON_API_KEY": "<YOUR_WHOISJSON_API_KEY>"
      }
    }
  }
}

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