# IPASIS, free: IP company lookup API

> Returns geolocation, ASN, privacy flags (VPN/proxy/Tor/hosting), abuse contacts, and company info for the given IP address.

IPASIS's Hobby plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. IPASIS's docs list 8 of the 10 fields on our checklist: Owner's name, Owner's domain, ASN, Network range, Country, Region and city, VPN and proxy, Hosting.
We haven't run IPASIS through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
This plan is free. We rank 398 plans for IP company lookup APIs by price. Half the plans cost $0.112 per 1,000 IP addresses or less. [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.
[FreeIPAPI's €9.90 monthly plan (/api/bulk/json)](https://datacircle.dev/ip-company-lookup-apis/freeipapi/9-90-monthly-unlimited-post-api-bulk-json/llms.txt) covers any number of IP addresses. FreeIPAPI's €9.90 monthly plan costs less up front than IPHunter's €99.99 monthly plan.
[DNSlytics](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free/llms.txt), [ipwhois.io](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt) and [IPBot](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/ipasis/free
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://ipasis.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://api.ipasis.com/v1/lookup`
- API key: with the plan, on https://ipasis.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Its API docs: https://ipasis.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: IPASIS (https://ipasis.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 80%
- Owner's name: ✓
- Owner's domain: ✓
- ASN: ✓
- Network range: ✓
- Country: ✓
- Region and city: ✓
- VPN and proxy: ✓
- Hosting: ✓

## Price

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

## Charges

- Also pays for: from the same budget: Risk Check

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Returns geolocation, ASN, privacy flags (VPN/proxy/Tor/hosting), abuse contacts, and company info for the given IP address.

## Data

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

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip. Optional: details
- Method: GET
- Path: /v1/lookup

## About the plan

- Plan: Hobby
- Who can get it: anyone

## The 34 fields the plan's answer can hold

IP address, city, region, country, coordinates, postal code, timezone, ASN, ASN name, ASN route, ASN type, ASN domain, company name, company domain, company type, VPN, proxy, Tor, relay, hosting, AI provider, abuse reported, crawler, privacy service, abuse contact address, abuse contact country, abuse contact email, abuse contact name, abuse network, abuse contact phone, domains total, domains page, hosted domains, raw details

## IPASIS's plans (4)

- [IPASIS, free](https://datacircle.dev/ip-company-lookup-apis/ipasis/free/llms.txt): $0.00 per 1,000, 80% complete
- [IPASIS, contact us, Startup](https://datacircle.dev/ip-company-lookup-apis/ipasis/contact-us-startup/llms.txt): 80% complete
- [IPASIS, contact us, Business](https://datacircle.dev/ip-company-lookup-apis/ipasis/contact-us-business/llms.txt): 80% complete
- [IPASIS, contact us, Scale](https://datacircle.dev/ip-company-lookup-apis/ipasis/contact-us-scale/llms.txt): 80% complete

## IPASIS's calls for this API (1)

- `GET /v1/lookup`: [IPASIS, free](https://datacircle.dev/ip-company-lookup-apis/ipasis/free/llms.txt)

## IPASIS's APIs (2)

- [IPASIS: email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/ipasis/free/llms.txt)
- [IPASIS: IP company lookup API pricing, 4 plans](https://datacircle.dev/ip-company-lookup-apis/ipasis/free/llms.txt)

## IPASIS: IP company lookup API alternatives

- [DNSlytics, free](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free/llms.txt): $0.00 per 1,000, 30% complete
- [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt): $0.00 per 1,000, 50% complete
- [IPBot, free, Anonymous, GET /v1/ip/{ip}](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip/llms.txt): $0.00 per 1,000, 80% complete
- [IP-API.com, free, POST /batch](https://datacircle.dev/ip-company-lookup-apis/ip-api-com/free-post-batch/llms.txt): $0.00 per 1,000, 50% complete, 24 hours

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-06.

- https://ipasis.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/bot-detection?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/fraud-prevention?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/legal/dpa?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/login?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipasis.com/use-cases/api-abuse-prevention?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing