← IP Geolocation & ASN
network by fourzerotwo
IP to network owner
ASN, organisation and hosting flag for one IP.
IP to network owner Free
ASN, organisation and hosting flag for one IP.
- cost
- Free then $0.0005 / call
- MCP tool
- ip-geolocation__asn
- method
- GET
Free up to 50 calls a day over MCP (500 with a free key), then $0.0005 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/ip-geolocation/asn
| Param | Type | Description |
|---|---|---|
| ip | string | IPv4 or IPv6 address |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/ip-geolocation/asn?ip=81.2.69.142" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/ip-geolocation/asn?ip=81.2.69.142"
by fourzerotwo
Report this endpoint
Use it from an AI agent (MCP)
Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.
{
"mcpServers": {
"fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
}
}
# the call the agent makes
call_api {"tool": "ip-geolocation__asn", "arguments": {"ip":"81.2.69.142"}}
More from IP Geolocation & ASN
- IP lookup — Country, continent, EU membership, network block, ASN, organisation and hosting flag for one IP.
- IP to country — Country and continent for one IP.
- Batch lookup — Full lookup for up to 100 IPs in one call.
IP Geolocation by DB-IP (https://db-ip.com), CC BY 4.0.