port-scanner.underscoredone.com
answeringGive this API a hostname or IP address and it tries connecting to each port in your requested range. For every port that answers it reports whether it is open or blocked, which service is likely running there (a web server, SSH), and what software version was detected. Saves you installing network tools, parsing command-line output, or writing socket loops. Only scan hosts you own or have permission to scan - this tool does not check that for you.
- Endpoint
- https://port-scanner.underscoredone.com/scan
- Price
- $0.01 / call
- Settles via
- cdp
- Category
- —
- Last seen live
- Wed, 09 Sep 2026 05:29:15 UTC
- Last probed
- Wed, 09 Sep 2026 05:29:15 UTC
- First indexed
- Tue, 08 Sep 2026 05:22:22 UTC
- Sources
- cdp-x402
Probe history
Last 2 probes, newest on the right. 100% answered with a payment challenge.
| When | Result | Method | Status | Latency |
|---|---|---|---|---|
| Wed, 09 Sep 2026 05:29:14 UTC | challenge | http-402 | 402 | 52 ms |
| Tue, 08 Sep 2026 05:22:59 UTC | challenge | http-402 | 402 | 873 ms |
JSON: /api/v1/services/port-scanner.underscoredone.com. Own this service? Update the listing.