IP lookup: owner, network range and country (RDAP)

$0.002 per call · failed calls are never charged · no account needed: a card key or USDC

Look up who holds an IP address (v4 or v6) in the regional internet registries' public records (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC): the holding organisation, network name and range, allocation type, registration country, abuse contact and registry. Use to see which company or ISP an address in a log belongs to. An HTTP call without ip answers for the caller's own address. Registration country, not city location.

Run it free (3 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

Public IPv4 or IPv6 address (over HTTP, left out: the caller's own address)

Uses one of your 3 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
ipstringPublic IPv4 or IPv6 address (over HTTP, left out: the caller's own address)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://glyphcall.com/ip/lookup?ip=8.8.8.8"

Or one of your 3 free calls, no key:

curl "https://glyphcall.com/ip/lookup?ip=8.8.8.8&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "ip": "8.8.8.8",
  "version": 4,
  "registry": "ARIN",
  "network": {
    "name": "GOGL",
    "handle": "NET-8-8-8-0-2",
    "start": "8.8.8.0",
    "end": "8.8.8.255",
    "type": "DIRECT ALLOCATION"
  },
  "holder": {
    "name": "Google LLC",
    "handle": "GOGL",
    "kind": "org",
    "country": "US"
  },
  "country": "US",
  "abuseEmail": "network-abuse@google.com",
  "registered": "2023-12-28T17:24:33-05:00",
  "lastChanged": "2023-12-28T17:24:56-05:00",
  "source": "RDAP via rdap.org"
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is ip_lookup, and the first 25 successful calls are free:

https://glyphcall.com/mcp

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