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WhoisJSON

NPM · @WHOISJSON/MCP-SERVER · SCANNED AUG 4

WHOIS, DNS, SSL, and domain availability lookups for AI assistants

+24 this week 70 Trust /100
Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security86
  • No malware found by supply-chain analysis.Pass
  • Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.Partial
  • No install/post-install scripts declared.Pass
  • Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency45
Schema Quality & AI Usability77
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 341 tokens (~85/item across 4 items; 4 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
  • Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · @whoisjson/mcp-server

# add to Claude Code
claude mcp add whoisjson-mcp-server -- npx -y @whoisjson/mcp-server
# add to Codex CLI
codex mcp add whoisjson-mcp-server -- npx -y @whoisjson/mcp-server
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "whoisjson-mcp-server": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@whoisjson/mcp-server"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add whoisjson-mcp-server --command npx --arg -y --arg @whoisjson/mcp-server
# ~/.hermes/config.yaml
mcp_servers:
  whoisjson-mcp-server:
    command: "npx"
    args: ["-y", "@whoisjson/mcp-server"]
// mcp.json
{
  "mcpServers": {
    "whoisjson-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@whoisjson/mcp-server"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 4 Aug 26 +5
    • Stability: unverified → 0.30 functional
  • 3 Aug 26 +29
    • Provenance: unverified → fail security
    • Known CVEs: unverified → partial security
    • Install scripts: unverified → pass security
    • Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
    • Schema quality: unverified → excellent functional
    • License: unverified → pass functional
    • Dependency health: unverified → partial functional
    • Maintenance: unverified → pass functional
    • MCP protocol: unverified → pass functional
    • Licence: MIT functional
  • 2 Aug 26 +15
    • Malware scan: unverified → pass security
  • 1 Aug 26 −7
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 31 Jul 26 −18
    • Malware scan: pass → unverified security
  • 27 Jul 26 46

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 4 Aug 2026 · Analysed npm/@whoisjson/[email protected]

Provenance none

Ecosystem: npm · Outcome: none

Dependencies 94 packages

94 packages in the resolved dependency tree · 94 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 4 exposed · ~341 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
dns_lookup ~110

Query DNS records for a domain name. Returns all available record types including A (IPv4), AAAA (IPv6), MX (mail), NS (nameservers), TXT, CNAME, SOA, CAA, DMARC, BIMI, MTA-STS, and TLS-RPT records. Useful for diagnosing DNS configuration, verifying mail settings, or auditing domain infrastructure.

NameTypeReqDescription
domainstringyesDomain name to query, e.g. "example.com". Do not include protocol or path.

No output schema declared.

No examples provided.

domain_availability ~63

Check whether a domain name is available for registration. Returns a boolean indicating if the domain is available. Useful for finding an unregistered domain before attempting to register it.

NameTypeReqDescription
domainstringyesThe domain name to check availability for (e.g. "example.com")

No output schema declared.

No examples provided.

ssl_check ~90

Retrieve and validate the SSL/TLS certificate details for a domain. Returns the issuer, validity period (valid_from / valid_to), whether the certificate is currently valid, fingerprints, subject alternative names, and full certificate details. Useful for checking certificate expiry, verifying the issuer, or auditing TLS configuration.

NameTypeReqDescription
domainstringyesThe domain name to check the SSL certificate for (e.g. "example.com")

No output schema declared.

No examples provided.

whois_lookup ~78

Retrieve WHOIS registration data for a domain name. Returns registrar details, creation/expiration dates, nameservers, contact information, DNSSEC status, and domain age analysis. Useful for checking domain ownership and registration info.

NameTypeReqDescription
domainstringyesDomain name to look up, e.g. "example.com". Do not include protocol or path.

No output schema declared.

No examples provided.