# AI Rook, free: IP company lookup API

> IP geolocation, ASN, and proxy/VPN detection. Pass ?ip=x.x.x.x or omit for caller IP.

AI Rook's Free trial plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. We check each provider's docs for 10 fields. AI Rook's docs list 2: Owner's name, ASN.
We haven't run AI Rook through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
This plan is free. We rank 468 plans for IP company lookup APIs by price. Half the plans cost $0.167 or less per 1,000 IP addresses. [See the best free IP company lookup API plan.](https://datacircle.dev/best-ip-company-lookup-api.txt)
[IPHunter's €99.99 monthly plan](https://datacircle.dev/ip-company-lookup-apis/iphunter/99-99-monthly/llms.txt) is the cheapest paid plan per 1,000 IP addresses. IPHunter's €99.99 monthly plan covers up to 11,520,000 IP addresses a day. [ipapi.is's top-up plan](https://datacircle.dev/ip-company-lookup-apis/ipapi-is/top-up-from-1-one-time-credits-post/llms.txt) costs the least for 10,000 IP addresses a month: $1.00.
[Api.co.id's Rp99,000 (about $5) monthly plan](https://datacircle.dev/ip-company-lookup-apis/api-co-id/rp99000-monthly/llms.txt) covers any number of IP addresses. Api.co.id's Rp99,000 (about $5) monthly plan costs less up front than IPHunter's €99.99 monthly plan.
[IPKit](https://datacircle.dev/ip-company-lookup-apis/ipkit/free/llms.txt), [MxToolbox](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-asn/llms.txt) and [Enterno](https://datacircle.dev/ip-company-lookup-apis/enterno/free-open-api-get-api-open-ip/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/ai-rook/free
- [IP company lookup API: the best of 40+ providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://agents.ai-rook.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://agents.ai-rook.com/api/ip-lookup`
- API key: not needed
- Its API docs: https://agents.ai-rook.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#/paths/~1api~1ip-lookup
- Sold by: AI Rook (https://ai-rook.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 20%
- Owner's name: ✓
- ASN: ✓

## Price

- $ per 1,000 IP addresses: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: 74 other calls: one free call each

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: IP geolocation, ASN, and proxy/VPN detection. Pass ?ip=x.x.x.x or omit for caller IP.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 1 request
- Enough for: 1 call, once

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: ip
- Method: GET
- Path: /api/ip-lookup

## About the plan

- Plan: Free trial
- Who can get it: anyone, one free call per wallet or IP address on each paid endpoint

## The 3 fields the plan's answer can hold

IP address, organization, ASN

## AI Rook's plans (3)

- [AI Rook, free](https://datacircle.dev/ip-company-lookup-apis/ai-rook/free/llms.txt): $0.00 per 1,000, 20% complete
- [AI Rook, pay as you go](https://datacircle.dev/ip-company-lookup-apis/ai-rook/pay-as-you-go/llms.txt): $1.00 per 1,000, 20% complete
- [AI Rook, $5 pack](https://datacircle.dev/ip-company-lookup-apis/ai-rook/5-pack/llms.txt): $100.00 per 1,000, 20% complete

## AI Rook's calls for this API (1)

- `GET /api/ip-lookup`: [AI Rook, free](https://datacircle.dev/ip-company-lookup-apis/ai-rook/free/llms.txt)

## AI Rook's APIs (4)

- [AI Rook: domain WHOIS API pricing, 3 plans](https://datacircle.dev/domain-whois-apis/ai-rook/free/llms.txt)
- [AI Rook: email verification API pricing, 3 plans](https://datacircle.dev/validate-email-apis/ai-rook/free/llms.txt)
- [AI Rook: IP company lookup API pricing, 3 plans](https://datacircle.dev/ip-company-lookup-apis/ai-rook/free/llms.txt)
- [AI Rook: web scraping API pricing, 3 plans](https://datacircle.dev/web-scraping-apis/ai-rook/free/llms.txt)

## AI Rook: IP company lookup API alternatives

- [ip2geo.dev, $10 monthly, Starter, POST /convert](https://datacircle.dev/ip-company-lookup-apis/ip2geo-dev/10-monthly-starter-post-convert/llms.txt): $1.00 per 1,000, 40% complete
- [WhoisFreaks, $1,000 monthly, Monthly Subscription, 1,000,000 API Credits, POST /v1.0/geolocation](https://datacircle.dev/ip-company-lookup-apis/whoisfreaks/1000-monthly-monthly-subscription-1000000-api-credits-post-v1-0-geolocation/llms.txt): $1.00 per 1,000, 60% complete
- [DomScan, $10 pack](https://datacircle.dev/ip-company-lookup-apis/domscan/10-pack/llms.txt): $1.00 per 1,000, 70% complete, stored
- [Foundry, pay as you go](https://datacircle.dev/ip-company-lookup-apis/foundry/pay-as-you-go/llms.txt): $1.00 per 1,000, 40% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.

- https://agents.ai-rook.com/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agents.ai-rook.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agents.ai-rook.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ai-rook.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing