domain-whois-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| whois_lookupA | Look up WHOIS information for a domain name using native WHOIS protocol (TCP port 43). Automatically discovers the correct WHOIS server via IANA if not known. Follows referrals from thin WHOIS to thick WHOIS for complete data. Returns parsed structured data + raw WHOIS text. |
| rdap_lookupA | Look up RDAP (Registration Data Access Protocol) information for a domain. RDAP is the modern successor to WHOIS, providing structured JSON responses. Automatically discovers the RDAP server via IANA bootstrap. Not all TLDs support RDAP — falls back with a clear error message. |
| domain_checkA | Check if a domain name is available for registration. Tries RDAP first (faster, structured), falls back to WHOIS. Returns availability status and full registration data if registered. |
| bulk_domain_checkB | Check multiple domains for availability concurrently. Supports parallel processing with configurable concurrency. Useful for finding available domains across multiple TLDs or name variations. |
| tld_infoA | Get information about a TLD (Top-Level Domain) from IANA. Returns the authoritative WHOIS server, RDAP server, and IANA registry data. Works for gTLDs (.com, .org), new gTLDs (.app, .xyz), and ccTLDs (.uk, .de). |
| whois_rawA | Send a raw WHOIS query to a specific server and return the unprocessed response. Useful for debugging, querying IP WHOIS (rwhois), or non-standard WHOIS servers. |
| find_whois_serverA | Discover the WHOIS and RDAP servers for a domain or TLD. Checks the built-in database first, then queries IANA for unknown TLDs. Returns both WHOIS and RDAP server information. |
| rdap_bootstrap_infoA | Show the IANA RDAP bootstrap data — lists all TLDs that support RDAP and their service URLs. Useful for understanding RDAP coverage across TLDs. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 8 tools
Most tools are distinct (whois_lookup vs rdap_lookup vs domain_check), but find_whois_server, tld_info, and rdap_bootstrap_info overlap in surfacing server/bootstrap information and could be confused by an agent. whois_lookup and whois_raw also both query WHOIS, differing only in parsing and server targeting.
Names are uniformly snake_case but follow mixed patterns: whois_lookup/rdap_lookup use verb_noun, domain_check/bulk_domain_check use noun_check, while tld_info and rdap_bootstrap_info are noun phrases. The inconsistency is readable but not predictable across the set.
8 tools is well-scoped for a WHOIS/RDAP domain lookup server. Each tool covers a distinct protocol, use case, or operational need without unnecessary bloat.
The tool set covers WHOIS lookup, RDAP lookup, raw queries, server discovery, TLD metadata, single-domain availability, and bulk availability. This forms a complete surface for domain registration information and WHOIS/RDAP troubleshooting.