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is-port-80-open
x402
is-port-80-open is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Checks whether TCP port 80 (HTTP) is open, closed, or filtered on a given host by attempting a connection from Cloudflare's edge network and reporting the result with connect time.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is TCP port 80 (HTTP) open on a host? Attempts a connection from Cloudflare's edge and reports open/closed/filtered with the connect time; Cloudflare-fronted hosts are reported as inconclusive because their edge answers for them. Exposure checks for HTTP without running a scanner. $0.01 per check.
Output
Returns the port status as open, closed, filtered, or inconclusive (the last for Cloudflare-fronted hosts where Cloudflare's edge answers instead of the actual host), along with the TCP connect time in milliseconds when a connection succeeds.
Example use cases
HTTP exposure audit for new server
“I just spun up a new server at 203.0.113.45 — can you check if port 80 is open on it from the outside? I want to make sure it's accepting HTTP before I configure the reverse proxy.”
Security check for unexpected HTTP listener
“I need to verify whether port 80 is unexpectedly open on host internal.mycompany.net — we shouldn't be exposing plain HTTP there and I want to confirm before raising an incident.”
Pre-launch HTTP reachability check
“We're about to launch our site at shop.mybrand.io — can you check if port 80 is open and reachable so I know HTTP traffic will reach us? I want the connect time too if it's open.”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/port/80?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, external check of HTTP (port 80) reachability on a host without deploying or running a port scanner. It is ideal for pre-launch checks, security audits to detect unintended HTTP exposure, or infrastructure monitoring where you want an external vantage point (Cloudflare's edge). Use it over a full scanner when you only need port 80 and want a fast, single-call result with connect time. Note the inconclusive limitation for Cloudflare-fronted hosts.
Side effects
- Host is Cloudflare-fronted — result reported as inconclusive because Cloudflare's edge answers the connection rather than the origin
- Host is unreachable or DNS does not resolve — connection attempt fails and filtered/closed is reported
- Firewall silently drops packets — port appears filtered rather than closed
- Transient network issues at Cloudflare's edge may cause false negatives
- Invalid or malformed hostname/IP input causes request rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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