# CheckIP.me, free, GET /{ip}, Simple API: Look up any IP address: IP company lookup API

> Network: the ISP or company that owns the address, its ASN, and whether the connection is residential, mobile, business or hosting.

CheckIP.me's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. We check each provider's docs for 10 fields. CheckIP.me's docs list 3: Owner's name, ASN, Network range.
CheckIP.me limits how many calls you get but gives no number.
In [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt), this plan scores 81.3 out of 100. CheckIP.me ranks 11th of 77 providers.
We rank 611 plans for IP company lookup APIs by price. Half the plans cost $0.185 or less per 1,000 IP addresses. This plan and 52 others tie for the lowest price per 1,000 IP addresses of the 611 plans. [199 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.
[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 [DC5 WHOIS](https://datacircle.dev/ip-company-lookup-apis/dc5-whois/free-public-instance-get-api-v1-lookup/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/checkip-me/free-get-ip-simple-api-look-up-any-ip-address
- [IP company lookup API in 2026: the best of 70+ compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://checkip.me/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://checkip.me/{ip}`, Simple API: Look up any IP address
- API key: not needed
- Its API docs: https://checkip.me/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: CheckIP.me (https://checkip.me?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 30%
- Owner's name: ✓
- ASN: ✓
- Network range: ✓

## Score

- Overall score: 81.3
- Price score: 100
- Accuracy score: 71
- Cost to get started score: 100
- Bundle score: 67
- Performance score: 43

## Price

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

## Charges

- Also pays for: from the same budget: Full API: Look up any IP address · Simple API: Get one field for any IP as plain text

## Not found

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

## In their words

- Their pitch: Network: the ISP or company that owns the address, its ASN, and whether the connection is residential, mobile, business or hosting.

## Data

- Freshness: 30 days
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0

## Rate limit

- Per second: 0.033 (120 an hour)
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.23 s

## The call

- You send: ip
- Method: GET
- Path: /{ip}

## About the plan

- Plan: Free
- Who can get it: anyone

## The 7 fields the plan's answer can hold

IP address, ASN, ISP, organisation, network type, IP range, hostname

## CheckIP.me's plans (1)

- [CheckIP.me, free, GET /{ip}, Simple API: Look up any IP address](https://datacircle.dev/ip-company-lookup-apis/checkip-me/free-get-ip-simple-api-look-up-any-ip-address/llms.txt): $0.00 per 1,000, 30% complete, 30 days

## CheckIP.me's calls (2)

- `GET /{ip}`, Full API: Look up any IP address: [CheckIP.me, free, GET /{ip}, Full API: Look up any IP address](https://datacircle.dev/ip-company-lookup-apis/checkip-me/free-get-ip-full-api-look-up-any-ip-address/llms.txt)
- `GET /{ip}`, Simple API: Look up any IP address: [CheckIP.me, free, GET /{ip}, Simple API: Look up any IP address](https://datacircle.dev/ip-company-lookup-apis/checkip-me/free-get-ip-simple-api-look-up-any-ip-address/llms.txt)

## CheckIP.me's APIs (1)

- [CheckIP.me IP company lookup API pricing, 1 plan, GET /{ip}, Simple API: Look up any IP address](https://datacircle.dev/ip-company-lookup-apis/checkip-me/free-get-ip-simple-api-look-up-any-ip-address/llms.txt)

## CheckIP.me: IP company lookup API alternatives

[CheckIP.me alternatives: every IP company lookup API provider ranked](https://datacircle.dev/checkip-me-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 IP addresses. Each plan in the list gives live data or data at most a month old.

- [IPKit, free](https://datacircle.dev/ip-company-lookup-apis/ipkit/free/llms.txt): $0.00 per 1,000, 80% complete, 1 day
- [WhoisRequest, free](https://datacircle.dev/ip-company-lookup-apis/whoisrequest/free/llms.txt): $0.00 per 1,000, 40% complete, live
- [heade.rs, free](https://datacircle.dev/ip-company-lookup-apis/heade-rs/free/llms.txt): $0.00 per 1,000, 30% complete, 24 hours
- [ip.guide, free](https://datacircle.dev/ip-company-lookup-apis/ip-guide/free/llms.txt): $0.00 per 1,000, 50% complete, 1 day

## 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://api.checkip.me/162.252.86.22?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://api.checkip.me/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://checkip.me?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://checkip.me/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://checkip.me/contact?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://checkip.me/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing