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Port Scanner API

Official registry Other

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

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code 
claude mcp add --transport sse port-scanner-api 'https://port-scanner.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "port-scanner-api": {
            "type": "sse",
            "url": "https://port-scanner.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Port Scanner API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Port Scanner API

Scan TCP ports on any host -- check open/closed status, response time. 16 common ports by default. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "port-scanner": {
      "url": "https://port-scanner.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://port-scanner.api.klymax402.com/api/scan" \
  -H "Content-Type: application/json" \
  -d '{"host":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
network_scan_portsPOST/api/scan$0.008Scan common ports on a host to check which are open
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.

Parameters

NameTypeRequiredDescription
hoststringyesThe hostname or IP address to scan
portsarraynoArray of port numbers to scan (default: [21,22,25,53,80,110,143,443,993,995,3306,3389,5432,6379,8080,8443])

Example response:

{"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}

When to use: server reconnaissance, verifying firewall rules, checking service availability, and infrastructure auditing.

Not for: DNS resolution (use network_lookup_dns), SSL certificate checks (use security_check_ssl), HTTP header analysis (use network_analyze_headers).

Example agent prompts

  • "Check which TCP ports are open on a host"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Frequently asked questions

What is Port Scanner API?

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

How do I install Port Scanner API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse port-scanner-api 'https://port-scanner.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Port Scanner API need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Port Scanner API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Port Scanner API?

It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.