17NAS Network Tools runs on your own machine — the client starts it, so there is no endpoint to ping. 139 installs a week from npm. Last commit 14 Oct 2026.
Free network diagnostic tools: IP info, DNS lookup, IPv6 check. No API key.
Today is the operative word: we check 17NAS Network Tools every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add network-tools -- npx -y 17nas-mcp-server
{
"mcpServers": {
"network-tools": {
"command": "npx",
"args": [
"-y",
"17nas-mcp-server"
]
}
}
}
[mcp_servers.network-tools]
command = "npx"
args = ["-y", "17nas-mcp-server"]
{
"mcpServers": {
"network-tools": {
"command": "npx",
"args": [
"-y",
"17nas-mcp-server"
]
}
}
}
{
"servers": {
"network-tools": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"17nas-mcp-server"
]
}
}
}
DNS MCP — DNS and network lookup tools
24 free tools: IP/VPN lookup, WHOIS, DNS, SPF/DMARC, site up/down, redirects, time zones. No key.
DNS comparison, Claude and cloud components/incidents, and website diagnostics. Free; no API key.
Free proxy list, live proxy checker and IP lookup for AI agents. No key, nothing to install.
Free MCP/API diagnostics. Micro Tools V2: free preview, $1 JSON check, $2 API shape, $3 normalize.
Find anagrams and check if two words are anagrams locally. No network and no key.
Four free tools to check if AI engines can find, read and recognise a site. No API key.
IP address lookup with location and network details. No key required.
Answers built from our own checks of this server.