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PapaCasper Open Port Scanner
x402
PapaCasper Open Port Scanner is a paid API for AI agents from papacasper.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Scans a hostname or IP address for open TCP ports and returns which ports are reachable
Price / call$0.01
Success—
StatusUnknown
How this service works
A hosted MCP server exposing utility tools any AI agent can call over HTTP — page-to-markdown, SEO audits, robots/sitemap checks, and more.
Output
Returns a structured object listing each scanned port and its status (open or closed/filtered) for the specified hostname or IP. Covers up to 100 ports per call, defaulting to a common-ports list if none are specified.
Example use cases
Firewall rule verification after deploy
“After our latest deployment, can you scan staging.myapp.com and check whether ports 80, 443, and 8080 are open so I can confirm the firewall rules are correct?”
Security audit of exposed services
“I need to know what's exposed on our production server at 203.0.113.42 — scan the common ports and tell me which ones are open so we can lock down anything that shouldn't be public.”
Troubleshoot database connectivity
“Our app can't connect to the database — can you check if port 5432 is open on db.internal.mycompany.com so I can figure out if it's a network or config issue?”
Technical details
Endpoint
POSThttps://papacasper.com/mcp/pay/check_open_portsWhen to prefer
Use this endpoint when you need a quick, pay-per-call port scan without standing up your own scanning infrastructure. Ideal for AI agents performing lightweight network audits, firewall verifications, or connectivity troubleshooting on individual hosts. Prefer over self-hosted solutions when simplicity and low cost per scan matter more than deep packet inspection or large-scale scanning.
Side effects
- Invalid or unresolvable hostname returns an error
- More than 100 ports specified triggers a validation error
- Firewall or network timeout may cause ports to appear closed when filtered
- Private/reserved IP ranges may be rejected or return no results
- Host unreachable results in a connection failure error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hostrequired | string | Hostname or IP to scan (no scheme) |
| ports | array | Specific ports to check. Defaults to a common-ports list. Max 100 ports per call. |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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