Nslookup vs Sentinel
A side-by-side look at the Nslookup and Sentinel 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 Sentinel for monitoring over a hosted endpoint. 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 Sentinel when
- You need dedicated capabilities in the Monitoring domain.
- You prefer a remote HTTP/SSE transport.
- You want tools like
get-uptime-summary-tool, get-attention-items-tool, list-monitors-tool.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Monitoring | Monitoring |
| Quality signal | 55/100 · Good | 52/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 23 | 1 |
| Directory activity | 0 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 23 | 17 |
| Full listing | View Nslookup | View Sentinel |
Tools & capabilities
Nslookup tools 23
dns_lookupLook up all common DNS records (A, AAAA, NS, MX, TXT, CNAME, SOA) for a domaindns_recordLook up a specific DNS record type — supports all 53 types (HTTPS, DNSKEY, TLSA, SPF, etc.)dns_propagationCheck DNS propagation across 18+ global servers (Cloudflare, Google, Quad9, regional, authoritative)webserversGet IPv4 and IPv6 addresses for a domaindns_change_reviewReview proposed DNS changes before applying them: diff vs current DNS, rule-based findings with fixes, and a 0–100 risk scorerdap_lookupRegistration data (RDAP) for an IP, AS number, or domain — owner org, network range, RIR, contacts, dateshosting_reportWho hosts a website: hosting provider, CDN/proxy, DNS provider, mail servers, server location, SSL issuerstatus_pageRead a public status page (by slug or custom domain): overall status, components, active incidentsdns_healthRun a DNS health audit (39 checks across DNSSEC, MX, hygiene, TTL, nameservers, CAA, operational maturity) with severity-weighted scoringssl_certificateCheck SSL/TLS certificate — issuer, expiry, chain validity, cipher strength, SAN domains, TLS versionbimi_vmcCheck BIMI record and VMC (Verified Mark Certificate) — logo URL, trademark info, certificate expirybimi_checkCheck only the BIMI DNS record (faster — skips the VMC certificate fetch)- +11 more on the listing page
Sentinel tools 17
get-uptime-summary-tool"Is anything down right now?"get-attention-items-tool"What needs my attention this morning?"list-monitors-toolInspect monitors, filter and searchlist-incidents-toolReview outages and their timelinesget-performance-history-toolResponse-time trends per monitorget-dns-history-toolDNS record changes over timelist-expiring-certificates-tool"Which SSL certificates expire soon?"list-status-pages-toolPublic status pages in the teamlist-groups-toolMonitor groups (the dashboard's grouped view)list-team-members-toolWho has access: role, 2FA state, last sign-incheck-url-toolOn-demand check of any URL from every regioncreate-monitor-toolManage monitors- +5 more on 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"
]
}
}
}
Sentinel
{
"mcpServers": {
"sentinel-2": {
"url": "https://sentinel.rootstuff.io/mcp/sentinel"
}
}
}
Frequently asked questions
Nslookup is categorized under Monitoring and uses a local stdio subprocess. Sentinel belongs to Monitoring and uses a remote HTTP/SSE transport. Pick Nslookup for monitoring work and Sentinel 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. Sentinel has no declared pricing — check the project's own site. 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 sentinel-2 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 55/100 (Good) with 0 views, 0 installs and 23 GitHub stars. Sentinel has 52/100 (Good) with 1 views, 0 installs and 1 GitHub stars.
