netdiag MCP server

by shigechika·io.github.shigechika/netdiag-mcp·v0.6.1

MCP server wrapping dig, ping, mtr, whois and TLS/HTTP checks for on-demand network diagnostics

A85/100grade A

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Safety scan

A85/100

Adoption

Growing

0 stars154 downloads/wk

Reviews

Nobody has reviewed netdiag MCP yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

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Read from the package source without running it. The installed server may list more.

asn_lookup
ASN + country-code lookup for an IP, or org info for an AS number (e.g. AS15169 or 15169).
current_time
Current date, time and weekday in an IANA timezone (e.g. "Asia/Tokyo").
dns_lookup
Resolve a DNS record via `dig`. record_type: A/AAAA/MX/TXT/NS/CNAME/SOA/PTR/CAA.
dnssec_check
Check whether a name validates DNSSEC against a known-validating resolver (AD bit).
health_check
Service health: version and which wrapped binaries are present on PATH.
http_check
HEAD/GET a URL and report status, redirect chain and latency.
http_get
GET a URL and return the response body (text/JSON/XML only, capped at max_bytes, hard cap 1 MiB).
ping_host
ICMP ping a host or IP. count is clamped to 1-10.
tcp_port_check
Check whether a TCP port is open (plain socket connect, no port scanning).
tls_cert_check
Fetch the TLS certificate presented on host:port and report subject/issuer/validity/SANs.
traceroute_path
Path/MTU-style hop report via `mtr --report` (fixed cycles, not a live run). cycles clamped 1-10.
whois_lookup
WHOIS lookup for a domain.

scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it

1 medium

Code scan6 source files scanned20/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 4 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

mediumsubprocess with shell=Trueexec.shell-true

netdiag_mcp-0.6.1/netdiag_mcp/tools.py: …al-binary call uses an argv list (never shell=True), so no argument can break out into she…

Overall 85/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

claude mcp add netdiag-mcp -- uvx netdiag-mcp

Is netdiag MCP server safe?: Yes, by our scan: it is graded A (85/100). Read the netdiag MCP safety report
How do I install netdiag MCP?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does netdiag MCP need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is netdiag MCP maintained?: The last commit was 5 days ago (2026-09-16). The latest release is v0.6.1.
What can I use instead of netdiag MCP?: Servers from other publishers that do the same job: Domain Liveness MCP server and Dashclaw MCP server.

Same job from other publishers: the closest match first, then the best rated.

Domain Liveness
Is this business's website still there? Checks apex and www, and DNS separately from HTTP.
not reviewed
Established
A
Dashclaw
Policy checks, approvals, records, and governed HTTP capabilities for unattended agents.
not reviewed
Established
B