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Port Scanner API MCP Server

by br0ski777 Your server? Claim it
not responding

Port Scanner API is listed as active in the registry but did not answer our last check. It exposes 1 tools. Last commit 2 Sep 2026.

TCP port scanning — check open ports on any host. x402 micropayment.

Uptime history 51 days of history · worst day 0%
51 days agonow
0.0%
Uptime 24h
0 of 91 checks
1
Tools
read from the server
45 ms
Response time
average over 24h
0
Stars
last commit 2 Sep 2026

Port Scanner API does not always answer

Over the last week it answered 30.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

run in your terminal
claude mcp add port-scanner --transport http https://port-scanner.api.klymax402.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "port-scanner": {
      "url": "https://port-scanner.api.klymax402.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.port-scanner]
url = "https://port-scanner.api.klymax402.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "port-scanner": {
      "url": "https://port-scanner.api.klymax402.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "port-scanner": {
      "url": "https://port-scanner.api.klymax402.com/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

network
network_scan_ports
Use this when you need to check which TCP ports are open on a host. Returns port status and response times in JSON. Returns: 1. host scanned 2. ports array with port number, status (open/closed/filtered), responseTime in ms 3. openCount and totalScanned 4. scanDuration in ms. Example output: {"host":"example.com","ports":[{"port":80,"status":"open","responseTime":45},{"port":443,"status":"open","responseTime":52},{"port":22,"status":"closed","responseTime":null}],"openCount":2,"totalScanned":16,"scanDuration":1200} Use this FOR server reconnaissance, verifying firewall rules, checking service availability, and infrastructure auditing. Do NOT use for DNS resolution -- use network_lookup_dns instead. Do NOT use for SSL certificate checks -- use security_check_ssl instead. Do NOT use for HTTP header analysis -- use network_analyze_headers instead.

Endpoints

URLTransportStateLatencyChecked
https://port-scanner.api.klymax402.com/mcp sse answering 45 ms 3 min ago

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Port Scanner API — questions

Answers built from our own checks of this server.

What can Port Scanner API do?
It exposes 1 tools, read directly from the server on our last check. Among them: network_scan_ports. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Port Scanner API working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 45 ms. The bar chart above shows every period we have measured.
The registry lists Port Scanner API as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Port Scanner API?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Port Scanner API need an API key?
No. Port Scanner API completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
Is Port Scanner API open source?
Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.