whois.domain.lookup
Get WHOIS registration data for any domain — registrar, creation/expiry dates, nameservers, registrant contact, status across 374M+ domains and 7,596 TLDs (WhoisXML)
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/whois.domain.lookup.md
What whois.domain.lookup does on Apibase
AI agents call whois.domain.lookup to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
domain | string | Yes | Domain name, IPv4, IPv6, or email address for WHOIS lookup (e.g. "google.com", "8.8.8.8") |
include_ips | boolean | — | Include resolved IP addresses for the domain (default false) |
prefer_fresh | boolean | — | Get latest WHOIS record even if incomplete (default false) |
check_availability | boolean | — | Also check domain availability status (default false) |
Parameters from the server's own tool schema.
Why whois.domain.lookup is rated Low
Retrieves publicly available domain registration information without side effects or data modification.
From the tool's definition Get WHOIS registration data, registrar, creation/expiry dates, nameservers, registrant contact
Attacks that exploit this kind of access
The rule that runs whois.domain.lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For whois.domain.lookup, this is the rule to start with:
whois.domain.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 Apibase, apply this rule, and every whois.domain.lookup call is checked against it from then on.
Questions about whois.domain.lookup
Get WHOIS registration data for any domain — registrar, creation/expiry dates, nameservers, registrant contact, status across 374M+ domains and 7,596 TLDs (WhoisXML). It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
whois.domain.lookup accepts 4 parameters: domain, include_ips, prefer_fresh, check_availability. Required: domain. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for whois.domain.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 Apibase. Nothing to install.
whois.domain.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.domain.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.domain.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.domain.lookup is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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