WhoisSAFE
MCP Server for whois lookups.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
Model Context Protocol server for whois lookups.
Cursor IDE Demo
https://github.com/user-attachments/assets/57a82adc-3f30-453f-aabd-7138c2e6a21d
Claude Desktop Demo
https://github.com/user-attachments/assets/d30a1f45-fdaf-4280-80f2-d5d4fc9743b1
Overview
This MCP server allows AI agents like Claude Desktop, Cursor, Windsurf,.. etc to perform WHOIS lookups and retrieve domain details.
Purpose You can directly ask the AI to check if a domain is available, who owns it, when it was registered, and other important details. No need to go to browser and search.
What is a WHOIS Lookup? A WHOIS lookup is the process of querying a WHOIS database to retrieve registration details about a domain name, IP address, or autonomous system. It helps users find out who owns a domain, when it was registered, when it expires, and other important details.
What Information Can a WHOIS Lookup Provide?
When you perform a WHOIS lookup, you can retrieve details such as:
- Domain Name – The specific domain queried
- Registrar Name – The company managing the domain registration (e.g., GoDaddy, Namecheap)
- Registrant Details – The name, organization, and contact details of the domain owner (unless protected by WHOIS privacy)
- Registration & Expiry Date – When the domain was registered and when it will expire
- Name Servers – The DNS servers the domain is using
- Domain Status – Active, expired, locked, or pending deletion
- Contact Information – Administrative, technical, and billing contacts (if not hidden)
Available Tools
3a1e368c7a80OBSERVED · 2026-10-08Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add whois-mcp -- npx -y @bharathvaj/[email protected]
{
"mcpServers": {
"whois-mcp": {
"command": "npx",
"args": [
"-y",
"@bharathvaj/[email protected]"
]
}
}
}Exposed tools (4)
4 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
whois_as | read | Looksup whois information about the Autonomous System Number (ASN) |
whois_domain | read | Looksup whois information about the domain |
whois_ip | read | Looksup whois information about the IP |
whois_tld | read | Looksup whois information about the Top Level Domain (TLD) |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (3)
@modelcontextprotocol/sdk, zod, @types/node, shx, typescript
media/claude-demo.webm
media/cursor-demo.webm
Gates applied: no_behavioural_pass.
3a1e368c7a80full audit observations/trust-audit/mcp-server/bharathvaj-ganesan__whois.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-08 | 3a1e368c7a80 | SAFE | B | 89 | first audit |
Questions
What is the Whois MCP server?
MCP Server for whois lookups.
What tools does Whois expose?
4 in total: 4 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Whois safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does Whois need?
No credential environment variables were found in its source, so it appears to need none.
How does Whois run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as @bharathvaj/whois-mcp at 1.0.1.
How current is this page?
The grade is for one exact copy of the source (3a1e368c7a80), read on 2026-10-08. The repository is watched and re-audited when it changes.