whois_lookup
Get WHOIS information for a domain
This record as markdown: /tools/deshabhishek007-domain-tools-mcp-server/whois-lookup.md
What whois_lookup does on Domain Tools MCP Server
AI agents call whois_lookup to retrieve information from Domain Tools MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why whois_lookup is rated Low
WHOIS lookups are read-only queries that return public domain registration information (registrar, registrant contact, nameservers, etc.). They have no side effects, cannot modify or delete data, and pose minimal security risk even if misused by an AI agent. The worst outcome would be information gathering, which is inherently low-impact.
From the tool's definition The tool is described as 'Get WHOIS information for a domain' — it retrieves publicly available registration data with no modification, deletion, or execution capability.
Attacks that exploit this kind of access
The rule that runs whois_lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Domain Tools MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For whois_lookup, this is the rule to start with:
whois_lookup is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Domain Tools MCP Server, apply this rule, and every whois_lookup call is checked against it from then on.
Questions about whois_lookup
Get WHOIS information for a domain. It is categorised as a Read tool in the Domain Tools MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Domain Tools MCP Server MCP server in PolicyLayer and add a rule for whois_lookup: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Domain Tools MCP Server. Nothing to install.
whois_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the whois_lookup rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for whois_lookup. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
whois_lookup is provided by the Domain Tools MCP Server MCP server (deshabhishek007/domain-tools-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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