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IP Address Ownership Lookup (RDAP)
x402
IP Address Ownership Lookup (RDAP) is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-01).
Returns RDAP-based ownership details for an IPv4 or IPv6 address, including network name, organization, country, and CIDR block.
Price / call$0.002
Success—
StatusUnknown
How this service works
IP address ownership (RDAP): network, organization, country, CIDR — Genesis402 / UnyKorn Operator Network
Output
Returns structured RDAP data for the queried IP including: network/block name, registrant organization name, country code, and CIDR notation of the assigned IP range.
Example use cases
Identify suspicious inbound traffic source
“I'm seeing a lot of requests hitting my server from 185.220.101.32 — can you look up who owns that IP, what organization it belongs to, and what country it's registered in?”
Enrich security logs with IP ownership
“I have this IP from a failed login attempt — 91.108.4.0 — can you pull the RDAP ownership info including the network name, org, and CIDR block so I can add it to my incident report?”
Verify IP geolocation for compliance
“Before I allow this connection from 2001:4860:4860::8888, can you check who owns that IPv6 address and confirm the registered country and organization?”
Technical details
Endpoint
POSThttps://twin.unykorn.org/web/ip-whois?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative RDAP-based ownership data for an IP address — specifically network name, organization, country, and CIDR block. Prefer this over simple geolocation APIs when you need the registered owner/operator rather than approximate physical location, or when you need the canonical network assignment block (CIDR) for security, compliance, or network analysis workflows.
Side effects
- Invalid or malformed IP address returns an error
- Private/reserved IP ranges (e.g. 192.168.x.x, 10.x.x.x) may return no RDAP record
- RDAP registry may have incomplete or missing records for some IP blocks
- Rate limiting or payment failure may prevent query execution
- IPv6 addresses in non-standard notation may fail to parse
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "whois-ip",
"receipt": {
"tx_hash": "0x<64hex>",
"amount_usd": 0.002,
"receipt_id": "g402-<16hex>"
},
"sources": [
{
"ok": true,
"name": "<source>"
}
],
"limitations": "<text>",
"generated_at": "<iso time>",
"evidence_hash": "sha256:<64hex>"
}
}Tags
x402
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