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ipv4.fr IP Geolocation API
x402
ipv4.fr IP Geolocation API is a paid API for AI agents from ipv4.fr, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Returns geolocation data (city, country, ISP) for a given IPv4 address
Price / call$0.002
Success—
StatusUnknown
How this service works
Fast, reliable network tools API. IP geolocation, DNS lookup, SSL check, WHOIS, email validation, port scan. Free tier available.
Output
A JSON object containing the queried IP address, the ISP name, the city, and the ISO country code (e.g. {"ip":"8.8.8.8","isp":"Google LLC","city":"Ashburn","country_code":"US"})
Example use cases
Identify suspicious login origin
“This login attempt came from IP 185.220.101.47 — can you geolocate it and tell me which country and ISP it's associated with?”
Enrich server logs with location
“I have an IP address from my access logs: 104.21.55.12. Where is it located and who's the ISP?”
Verify user location claim
“A user says they're connecting from Germany but their IP is 1.32.40.100 — can you check the actual geolocation of that IP?”
Technical details
Endpoint
GEThttps://ipv4.fr/x402/v1/geo/%7Bip%7D?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, low-cost IP geolocation with ISP identification for a single IPv4 address, especially when paying per-call via x402/USDC is acceptable. It is well-suited for enriching logs, fraud detection pipelines, or any workflow where you need city-level location and ISP data without a subscription.
Side effects
- Invalid IP address format returns an error
- Private/reserved IP ranges (e.g. 192.168.x.x, 10.x.x.x) may return no geolocation data
- Payment failure (402) if USDC balance is insufficient
- IPv6 addresses may not be supported given the endpoint path prefix 'ipv4'
- Rate limiting if free tier quota is exceeded
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ip": "8.8.8.8",
"isp": "Google LLC",
"city": "Ashburn",
"country_code": "US"
}
}Tags
x402
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