DomainKts

Perform reverse lookup of gTLD domains hosted on a specified nameserver with optional filters by TLD and domain prefix length.

Security Scan

Instruction-only integration for a domain-intelligence MCP service; the steps and resource access described are consistent with that purpose, with minor notes about expected local tooling and config edits.

Purpose & Capability

The skill advertises MCP-based domain intelligence endpoints (NRDS and NS-reverse) and all instructions target those endpoints. One mismatch: the SKILL.md uses 'npx' and references an 'mcp-remote' client (and a Gemini GitHub extension), but the skill metadata lists no required binaries — in practice the user/agent will need node/npm (npx) or the specified client to follow the instructions.

Instruction Scope

Runtime instructions are narrowly scoped to adding MCP servers to local client configs and invoking the service (curl examples and client config snippets). They do ask the user/agent to edit local application config files (Claude and Cursor paths), which is expected for integration but should be done deliberately; there are no instructions to read unrelated system files or exfiltrate data.

Install Mechanism

There is no install spec and no code files (lowest disk-risk). The README suggests installing a Gemini extension from a GitHub repo and the use of 'npx mcp-remote' (which will pull packages on demand). These are normal but rely on fetching code from GitHub/npm at runtime — users should be aware that running npx will execute downloaded code.

Credentials

The skill declares no environment variables, no credentials, and no config-path requirements beyond client configuration files. That is proportionate to a read-only domain-intel lookup service: it does not request secrets or unrelated cloud credentials.

Persistence & Privilege

The skill does not request always:true and is not force-included. It does not attempt to modify other skills or system-wide settings; it only instructs modifying local client config files for integration, which is an appropriate level of persistence for this purpose.

Assessment

This skill is an integration guide for DomainKits' MCP endpoints and appears internally consistent. Before installing or applying the suggested edits: (1) confirm you trust https://mcp.domainkits.com and the github repo (https://github.com/ABTdomain/domainkits-mcp) because the instructions rely on npx (which fetches and runs packages) and an optional GitHub extension; (2) back up any client config files before editing them (the SKILL.md names paths in your Claude and Cursor configs); (3) note that no credentials are requested by the skill, but running npx or installing third-party extensions will execute remote code — only proceed if you trust the upstream projects; (4) if you want the agent to perform these edits automatically, review the exact changes it will make so it doesn't overwrite unrelated settings.

DomainKits MCP Server

Domain intelligence tools through MCP-compatible clients.

Endpoints

Endpoint	Description
https://mcp.domainkits.com/mcp/nrds	Newly Registered Domains Search
https://mcp.domainkits.com/mcp/ns-reverse	NS Reverse Lookup

Configuration

Claude Desktop

Edit config file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "domainkits-nrds": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.domainkits.com/mcp/nrds",
        "--transport",
        "http-first"
      ]
    },
    "domainkits-ns-reverse": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://mcp.domainkits.com/mcp/ns-reverse",
        "--transport",
        "http-first"
      ]
    }
  }
}

Cursor

Edit ~/.cursor/mcp.json:

{
  "mcpServers": {
    "domainkits-nrds": {
      "command": "npx",
      "args": ["mcp-remote", "https://mcp.domainkits.com/mcp/nrds"]
    },
    "domainkits-ns-reverse": {
      "command": "npx",
      "args": ["mcp-remote", "https://mcp.domainkits.com/mcp/ns-reverse"]
    }
  }
}

---

Gemini CLI

gemini extensions install https://github.com/ABTdomain/domainkits-mcp

Tools

search_nrds

Search for newly registered domains by keyword.

Parameters:

Name	Type	Required	Default	Description
keyword	string	Yes	-	Search term (a-z, 0-9, hyphen only, max 20 chars)
days	integer	Yes	-	1-7
position	string	No	any	start, end, or any
tld	string	No	all	Filter by TLD (e.g., com, net, org)

Example:

curl -X POST https://mcp.domainkits.com/mcp/nrds \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_nrds","arguments":{"keyword":"ai","days":7,"position":"start","tld":"com"}}}'

---

search_ns_reverse

Look up gTLD domains hosted on a specific nameserver.

Parameters:

Name	Type	Required	Default	Description
ns	string	Yes	-	Nameserver hostname (e.g., ns1.google.com)
tld	string	No	all	Filter by TLD (e.g., com, net, org)
min_len	integer	No	-	Minimum domain prefix length
max_len	integer	No	-	Maximum domain prefix length

Example:

curl -X POST https://mcp.domainkits.com/mcp/ns-reverse \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_ns_reverse","arguments":{"ns":"ns1.google.com","tld":"com","min_len":4,"max_len":8}}}'

---

Limits

• 10 requests per minute per IP
• 5 domains per response
• NRDS data may have 24-48 hour delay

Full Access

For complete results with advanced filters and export:

• NRDS: domainkits.com/search/new
• NS Reverse: domainkits.com/tools/ns-reverse

About

DomainKits - Domain intelligence tools for investors, brand managers, and researchers.

Privacy

• IP addresses anonymized
• Search queries anonymized
• Logs retained 7 days
• No personal data collected

License

MIT