Nslookup vs MCP Server
A side-by-side look at the Nslookup and MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Nslookup for monitoring work as a local process; choose MCP Server for monitoring as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Nslookup when
- You need dedicated capabilities in the Monitoring domain.
- You prefer a local stdio subprocess transport.
- You want tools like
dns_lookup, dns_record, dns_propagation.
Choose MCP Server when
- You need dedicated capabilities in the Monitoring domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
VS_API_KEY, VISUALSENTINEL_API_KEY, VS_API_BASE.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Monitoring | Monitoring |
| Quality signal | 60/100 · Good | 57/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | API key required |
| Pricing | Not declared | Freemium |
| Required env vars | None listed | VS_API_KEYVISUALSENTINEL_API_KEYVS_API_BASE |
| Verified owner | Community listing | Community listing |
| GitHub stars | 23 | 1 |
| Directory activity | 1 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 23 | Not listed |
| Full listing | View Nslookup | View MCP Server |
Tools & capabilities
Nslookup tools 23
dns_lookupLook up all common DNS records (A, AAAA, NS, MX, TXT, CNAME, SOA) for a domain. Returns results from a specified DNS server.dns_recordLook up a specific DNS record type for a domain. Supports 53 record types including A, AAAA, MX, TXT, CNAME, SOA, PTR, CAA, SRV, DNSKEY, DS, TLSA, HTTPS, SPF, and more.dns_propagationCheck DNS propagation for a domain across 18+ global DNS servers (Cloudflare, Google, Quad9, OpenDNS, regional servers, and authoritative nameservers). Shows if DNS changes have propagated worldwide.webserversGet the IP addresses (both IPv4 and IPv6) for a domain by looking up A and AAAA records. Also returns the punycode and unicode domain representations.ssl_certificateCheck the SSL/TLS certificate for a domain. Returns issuer, expiry date, days until expiry, certificate chain validity, cipher strength, SAN domains, fingerprint, and TLS protocol version.bimi_vmcCheck BIMI (Brand Indicators for Message Identification) and VMC (Verified Mark Certificate) for a domain. Returns BIMI DNS record status, VMC certificate details, logo URL, trademark info, and expiry.security_scanRun a security scan on a domain to detect DNS misconfigurations, missing SPF/DKIM/DMARC records, cookie security issues, and other web security vulnerabilities. Returns findings with severity levels (critical, high, medium, low, info).uptime_checkPerform a one-time HTTP uptime check on a URL from a single location. Returns whether the site is up or down, HTTP status code, and response time in milliseconds. For multi-location checks, use uptime_check_multi instead.uptime_check_multiCheck if a website is up or down from 7 global locations simultaneously: Amsterdam, Sydney, London, Frankfurt, Delhi, Warsaw, and South Carolina. Returns status, response time, and HTTP status code for each location.dns_healthRun a comprehensive DNS health audit on a domain — 39 checks across 7 categories: DNSSEC (chain of trust, algorithms, validation), MX & email (PTR, MTA-STS, redundancy), DNS hygiene (SPF conflicts, wildcards, apex CNAME), TTL & SOA configuration, nameserver setup (diversity, lame delegation, EDNS0), CAA certificates, and operational maturity (security.txt, abuse mailbox). Returns an overall severity-weighted score (0–100) plus per-category scores.geo_checkerCheck a domain's GEO (Generative Engine Optimization) score — how well the site is optimized for AI search engines like ChatGPT, Gemini, Claude, and Perplexity. Returns three scores (Technical Readiness, Entity Readiness, Answer Readiness), AI crawler access status, structured data analysis, and prioritized recommendations.rdap_lookupLook up registration data (RDAP — the successor to WHOIS) for an IP address, AS number, or domain name. The query type is detected automatically. Returns the owning organization, network range/CIDR, RIR (ARIN, RIPE, APNIC, LACNIC, AFRINIC), country, status, registration/last-changed dates, nameservers, and abuse/registrant contacts, plus the raw RDAP JSON.- +11 more on the listing page
MCP Server tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Nslookup
{
"mcpServers": {
"nslookup": {
"command": "npx",
"args": [
"-y",
"@nslookup-io/mcp-server"
]
}
}
}
MCP Server
{
"mcpServers": {
"visualsentinel-mcp-server": {
"command": "npx",
"args": [
"-y",
"@visualsentinel/mcp-server"
],
"env": {
"VS_API_KEY": "YOUR_VS_API_KEY_HERE",
"VISUALSENTINEL_API_KEY": "YOUR_VISUALSENTINEL_API_KEY_HERE",
"VS_API_BASE": "YOUR_VS_API_BASE_HERE"
}
}
}
}
Frequently asked questions
Nslookup is categorized under Monitoring and uses a local stdio subprocess. MCP Server belongs to Monitoring and uses a local stdio subprocess. Pick Nslookup for monitoring work and MCP Server for monitoring.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Nslookup has no declared pricing — check the project's own site. MCP Server is listed as freemium — a free tier with paid plans. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add nslookup and visualsentinel-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Nslookup has a quality signal of 60/100 (Good) with 1 views, 0 installs and 23 GitHub stars. MCP Server has 57/100 (Good) with 1 views, 0 installs and 1 GitHub stars.