# WorldIP, free, Keyless — no API key: IP company lookup API

> Full geolocation (country, region, city), reverse + forward DNS, ASN and org name, and CIDR — free on every plan

WorldIP's "Keyless — no API key" plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. We check each provider's docs for 10 fields. WorldIP's docs list 5: Owner's name, ASN, Network range, Country, Region and city.
We haven't run WorldIP through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
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/worldip/free-keyless-no-api-key
- [IP company lookup API in 2026: the best of 80+ compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://worldip.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://worldip.io/{ip}`
- API key: not needed
- Its API docs: https://worldip.io/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: WorldIP (https://worldip.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 50%
- Owner's name: ✓
- ASN: ✓
- Network range: ✓
- Country: ✓
- Region and city: ✓

## Price

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

## Charges

- Also pays for: nothing else

## Overage

- Units cap: hard

## Not found

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

## In their words

- Their pitch: Full geolocation (country, region, city), reverse + forward DNS, ASN and org name, and CIDR — free on every plan

## Data

- Freshness: 1 day
- Keep data: no limit
- Use data: "You may not use WorldIP.io data for: Identifying, tracking, or surveilling individuals [...] Making security, access control, or fraud decisions based solely on IP geolocation [...] Automated scraping or bulk data extraction beyond the published API limits [...] Any unlawful purpose, including any purpose that would violate the laws of the United States, the European Union, the United Kingdom, Germany, or any other applicable jurisdiction" [...] "If you display or pass on API data, keep the attribution text that comes with it (attribution, and grip_attribution where present). Data from the IPinfo Lite dataset is licensed under CC BY-SA 4.0, so adapted datasets you share must carry the same licence. GeoLite2 data is provided subject to the MaxMind GeoLite End User License Agreement, which among other things does not allow it to be used to decide a person’s eligibility for credit, insurance, employment or government benefits, or as part of a consumer report." [...] "You may not share, publish, sell or sublicense the key or the access it gives."

## Plan

- Pay: $0
- You get: 1,000 requests a day
- Enough for: 1,000 calls a day
- Expires: the daily allowance resets after 00:00 UTC

## Rate limit

- Per day: 1,000
- Per second: 1
- Concurrent: n/a
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Keyless — no API key
- Who can get it: anyone

## The 26 fields the plan's answer can hold

IP address, IP version, reverse DNS hostname, forward DNS hostname, forward DNS confirmed, ASN number, ASN name, organization name, country code, country name, region, city, CIDR, address type, IPv6 prefixes, embedded IPv4, reverse DNS scan status, reverse DNS kind, reverse DNS checked at, reverse DNS forward check, reverse DNS note, hosted domain count, hosted domain count date, reserved, attribution, generated at

## WorldIP's plans (3)

- [WorldIP, free, Keyless — no API key](https://datacircle.dev/ip-company-lookup-apis/worldip/free-keyless-no-api-key/llms.txt): $0.00 per 1,000, 50% complete, 1 day
- [WorldIP, free, API key](https://datacircle.dev/ip-company-lookup-apis/worldip/free-api-key/llms.txt): $0.00 per 1,000, 50% complete, 1 day
- [WorldIP, contact us, Enterprise, GET /{ip}](https://datacircle.dev/ip-company-lookup-apis/worldip/contact-us-enterprise-get-ip/llms.txt): 50% complete, 1 day

## WorldIP's calls (2)

- `GET /{ip}`: [WorldIP, free, Keyless — no API key](https://datacircle.dev/ip-company-lookup-apis/worldip/free-keyless-no-api-key/llms.txt)
- `GET /api/v1/ext/lookup/{ip}`: [WorldIP, contact us, Enterprise, GET /api/v1/ext/lookup/{ip}](https://datacircle.dev/ip-company-lookup-apis/worldip/contact-us-enterprise-get-api-v1-ext-lookup-ip/llms.txt)

## WorldIP's APIs (2)

- [WorldIP IP company lookup API pricing, 3 plans](https://datacircle.dev/ip-company-lookup-apis/worldip/free-keyless-no-api-key/llms.txt)
- [WorldIP IP geolocation API pricing, 3 plans](https://datacircle.dev/ip-geolocation-apis/worldip/free-keyless-no-api-key/llms.txt)

## WorldIP: IP company lookup API alternatives

[WorldIP alternatives: other IP company lookup API providers by price](https://datacircle.dev/worldip-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 day 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://worldip.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://worldip.io/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://worldip.io/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://worldip.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://worldip.io/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing