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IPv4 Private Check
x402
IPv4 Private Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Determines whether a given IPv4 address falls within RFC1918 private address ranges using local computation only.
Price / call$0.001
Success—
StatusUnknown
How this service works
Detect RFC1918 private IPv4 addresses. Call when agents classifying IPs before whois/network calls. Returns is_private as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
Returns a deterministic JSON object containing an `is_private` boolean indicating whether the supplied IPv4 address falls within RFC1918 private ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). Computed locally with no external calls.
Example use cases
Pre-screening IPs before whois calls
“Before running whois on these IPs I collected from server logs, can you check if 10.0.0.45 is a private address so I can skip the external lookup for it?”
Filtering internal traffic from analytics
“I have an IP 172.16.5.200 showing up in my analytics — can you tell me if it's a private RFC1918 address so I can exclude it from my public traffic reports?”
Agent IP routing decision
“My agent just received a connection from 203.0.113.77 — is this a private IP or a public one? I need to decide whether to allow it through the external firewall rule.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/ip-v4-private-checkWhen to prefer
Choose this endpoint when an agent needs a fast, cheap, deterministic classification of an IPv4 address as private or public before committing to more expensive operations like whois lookups, geolocation queries, or network reachability checks. Ideal for pre-filtering pipelines where private IPs should be excluded from external API calls. Preferred over rolling your own RFC1918 logic when operating in a tool-calling context where simplicity and determinism matter.
Side effects
- Invalid or malformed IPv4 string returns an error response
- IPv6 addresses or hostnames not accepted — input must be a dotted-decimal IPv4 string
- Payment failure (x402) results in 402 response before computation occurs
- Empty or missing `ip` field causes a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ip | string | IPv4 address string |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-ip-v4-private-check/v1",
"is_private": true
}
}Tags
x402
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