TCP Port Scanner
POST port-scanner.underscoredone.com/scan
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Give this API a hostname or IP address and it will try connecting to each port in your requested range. For every port that answers, it tells you whether it is open or blocked, which service is likely running there (like a web server or SSH), and what software version was detected. This saves you from installing network tools, parsing messy command-line output, or writing socket loops yourself. Only scan hosts you own or have permission to scan — this tool does not check that for you.
Resource: port-scanner.underscoredone.com/scan
Network: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08
Payment methods: — · Last validation: —
{
"input": {
"body": {
"ports": "1-1000",
"target": "scanme.nmap.org",
"timeout": 30,
"scan_type": "tcp_connect"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"target": "scanme.nmap.org",
"warning": "",
"complete": true,
"scan_type": "tcp_connect",
"open_ports": [
{
"port": 22,
"state": "open",
"service": "ssh",
"version": "OpenSSH 8.2p1",
"protocol": "tcp"
},
{
"port": 80,
"state": "open",
"service": "http",
"version": "Apache httpd 2.4.41",
"protocol": "tcp"
}
],
"api_version": "1.0.0",
"duration_ms": 4521,
"resolved_ip": "45.33.32.156",
"ports_scanned": 1000,
"ports_requested": 1000,
"closed_or_filtered_count": 998
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "10000"
},
{
"raw": {
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"amountAtomic": "10000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.