---
title: "Geo, ISP, VPN/proxy detection"
method: POST
path: "/v1/tools/ip-lookup"
tags: ["Web"]
---

# Geo, ISP, VPN/proxy detection

`POST /v1/tools/ip-lookup`

## Request

- Base URL: `https://archtools.dev`
- URL: `https://archtools.dev/v1/tools/ip-lookup`
- Auth: API key in header `x-api-key`

## Request body

- object
  - `ip` string: IP address (uses caller's IP if omitted)

## Response `200`

Geolocation, ISP, and VPN/proxy detection data

---

[API](https://skmtc.dev/archtools/apis/arch-tools-api.md) · [All operations](https://skmtc.dev/archtools/apis/arch-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/archtools/apis/arch-tools-api/revisions/ed6c1f974033?raw)