Datacircle

FernTool pricing: IP company lookup API

FernTool's siteThis page as plain textIP company lookup API in 2026: the best of 60+ comparedFernTool: IP company lookup API alternatives

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20% complete: 2 of the 10 fields on our checklistSee the 10 fields
$0.00per 1,000 IP addressesWe ran FernTool in our IP company lookup API benchmark. We didn't score any FernTool plan.We rank 530 plans for IP company lookup APIs by price. Half the plans cost $0.239 or less per 1,000 IP addresses. This plan and 39 others tie for the lowest price per 1,000 IP addresses of the 530 plans. See the best free IP company lookup API plan.Api.co.id's Rp99,000 (about $5) monthly plan 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, thenetworkery and DC5 WHOIS are the best IP company lookup API providers in the Datacircle benchmark.
Type a number to see the cheapest FernTool plan for that many IP addresses. The table below then sorts the other plans by what each costs.
Plan: Free FernTool's only plan
Call: GET /api/ip/{ip} FernTool's only call for this API
API: IP company lookup API one of FernTool's 2 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 2 of the 10 fields on our checklist. Owner's name, ASN.
  • Nothing to pay. FernTool limits how many calls you get but gives no number.
  • One call. You send ip to GET /api/ip/{ip}. The call returns the IP address's owner.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

FernTool: IP company lookup API alternatives

FernTool alternatives: other IP company lookup API providers by price

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

This planFernTool, freeIPKit, freethenetworkery, freeDC5 WHOIS, free, Public instance, GET /api/v1/ipMxToolbox, free, GET /api/v1/Lookup/asn/DNSlytics, free
$ per 1,000 IP addresses$0.00$0.00$0.00$0.00$0.00$0.00
Completeness20%80%40%40%20%30%
Billingfreefreefreefreefreefree
Pay$0$0$0$0$0$0
Enough fornot publishednot publishednot publishednot publishednot published75,000 calls a month
Freshnessunknown1 dayunknownunknownunknownunknown
Who can get itanyoneanyoneanyone, to check systems they own, run or are authorised to testanyone, with no registration, for lawful infrastructure, security and research purposesanyone with a free MxToolbox accountanyone

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

  1. ferntool.com/api
  2. ferntool.com/api/ip/8.8.8.8
  3. ferntool.com/ip-lookup
  4. ferntool.com/openapi.json
  5. ferntool.com/terms

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Owner's name
  • Owner's domain, not in the answer
  • ASN
  • Network range, not in the answer
  • Industry, not in the answer
  • Company size, not in the answer
  • Country, not in the answer
  • Region and city, not in the answer
  • VPN and proxy, not in the answer
  • Hosting, not in the answer
Price
$ per 1,000 IP addresses$0.00
Percall
Billingfree
Charges
Also pays fornothing else
Not found
$ per 1,000 calls that find nothing$0.00
In their words
Their pitchValidate any IPv4/IPv6 + country, ASN, network (IP Geolocation by DB-IP, CC BY 4.0, IPtoASN)
Data
Keep datano limit
Use dataDo not abuse the API (automated heavy use may be rate limited). Do not use the service for unlawful purposes. IP Geolocation by DB-IP (https://db-ip.com), CC BY 4.0, ASN data from IPtoASN (https://iptoasn.com), PDDL
Plan
Pay$0
Rate limit
Per second1
Batch1
Speed
Answerin the call
The call
You sendip
MethodGET
Path/api/ip/{ip}
About the plan
PlanFree
Who can get itanyone
The 3 fields the plan's answer can hold

IP address, network owner, ASN

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