# isIPsafe, free, Anonymous: IP company lookup API

> Score, report history, categories, reverse DNS, country, city, owning network and Tor exit status for any IPv4 or IPv6 address.

isIPsafe's Anonymous plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. We check each provider's docs for 10 fields. isIPsafe's docs list 2: Owner's name, ASN.
We ran isIPsafe in [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt). isIPsafe's call scores 55 out of 100 for accuracy. The plan on this page is free. isIPsafe also has a paid plan for the same call. We don't score a free plan when the provider also has a paid plan for the same call. So this plan has no Overall score.
This plan is free. We rank 606 plans for IP company lookup APIs by price. Half the plans cost $0.167 or less per 1,000 IP addresses. [203 IP company lookup API plans on our price sheet are free.](https://datacircle.dev/best-ip-company-lookup-api.txt) [IPKit's free plan](https://datacircle.dev/ip-company-lookup-apis/ipkit/free/llms.txt) scores highest of the free plans in our benchmark, at 94.1 out of 100.
[IPScanner's $5 pack](https://datacircle.dev/ip-company-lookup-apis/ipscanner/5-pack-pay-as-you-go-5-get-asn-ip/llms.txt) is the cheapest paid plan per 1,000 IP addresses. IPScanner's IP company lookup API costs nothing beyond the plan price. [ipapi.is' 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.
[IPKit](https://datacircle.dev/ip-company-lookup-apis/ipkit/free/llms.txt), [thenetworkery](https://datacircle.dev/ip-company-lookup-apis/thenetworkery/free/llms.txt) and [IPLogs](https://datacircle.dev/ip-company-lookup-apis/iplogs/free-get-v1-lookup-ip/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/isipsafe/free-anonymous
- [IP company lookup API in 2026: the best of 80+ compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://isipsafe.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://isipsafe.com/api/v1/check`
- API key: not needed
- Its API docs: https://isipsafe.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#check
- Sold by: isIPsafe (https://isipsafe.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-11

## 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: from the same budget: Paginated reports for one IP address · Reported addresses inside a network

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Score, report history, categories, reverse DNS, country, city, owning network and Tor exit status for any IPv4 or IPv6 address.

## Data

- Keep data: as long as you need them to protect networks, systems, services and applications that you own or operate
- Use data: protect networks, systems, services and applications that you own or operate, or that you operate for your employer or your clients as part of running or securing them. You may not, directly or indirectly: sell, resell, license, sublicense, rent or otherwise commercially exploit the data, in whole or in part, include the data, or anything derived from it (scores, lists, feeds, enrichments, aggregates or statistics), in a product, feed, API, database or service that you offer to other people or organisations, whether it is paid or free, and whether on its own or as part of a larger offering, republish or mirror the data, or let third parties download, query or access it through you, use the data to build, seed, train or improve a competing IP reputation, threat intelligence or blocklist product, including machine learning and AI models, arrange for someone else to do any of the above on your behalf. In return: if you show isipsafe data to other people, credit "isipsafe" with a link to https://isipsafe.com, and credit DB-IP if you republish its location and network information.

## Plan

- Pay: $0
- You get: 400 requests a day
- Enough for: 400 calls a day

## Rate limit

- Per day: 400
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.18 s

## The call

- You send: ip. Optional: maxAgeInDays, verbose
- Method: GET
- Path: /check

## About the plan

- Plan: Anonymous
- Who can get it: anyone

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

IP address, network owner, ASN

## isIPsafe's plans (3)

- [isIPsafe, free, Anonymous](https://datacircle.dev/ip-company-lookup-apis/isipsafe/free-anonymous/llms.txt): $0.00 per 1,000, 20% complete
- [isIPsafe, free account](https://datacircle.dev/ip-company-lookup-apis/isipsafe/free-account/llms.txt): $0.00 per 1,000, 20% complete
- [isIPsafe, contact us](https://datacircle.dev/ip-company-lookup-apis/isipsafe/contact-us/llms.txt): 20% complete

## isIPsafe's calls (1)

- `GET /check`: [isIPsafe, free, Anonymous](https://datacircle.dev/ip-company-lookup-apis/isipsafe/free-anonymous/llms.txt)

## isIPsafe's APIs (2)

- [isIPsafe IP company lookup API pricing, 3 plans](https://datacircle.dev/ip-company-lookup-apis/isipsafe/free-anonymous/llms.txt)
- [isIPsafe IP geolocation API pricing, 3 plans](https://datacircle.dev/ip-geolocation-apis/isipsafe/free-anonymous/llms.txt)

## isIPsafe: IP company lookup API alternatives

[isIPsafe alternatives: other IP company lookup API providers by price](https://datacircle.dev/isipsafe-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 IP addresses.

- [IPKit, free](https://datacircle.dev/ip-company-lookup-apis/ipkit/free/llms.txt): $0.00 per 1,000, 80% complete, 1 day
- [thenetworkery, free](https://datacircle.dev/ip-company-lookup-apis/thenetworkery/free/llms.txt): $0.00 per 1,000, 40% complete
- [IPLogs, free, GET /v1/lookup/{ip}](https://datacircle.dev/ip-company-lookup-apis/iplogs/free-get-v1-lookup-ip/llms.txt): $0.00 per 1,000, 80% complete, stored
- [DC5 WHOIS, free, Public instance, GET /api/v1/ip](https://datacircle.dev/ip-company-lookup-apis/dc5-whois/free-public-instance-get-api-v1-ip/llms.txt): $0.00 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 2026-11-11.

- https://isipsafe.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://isipsafe.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://isipsafe.com/api/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://isipsafe.com/eula?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://isipsafe.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://isipsafe.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing