# FullHunt, free: IP company lookup API

> Retrieve Nexus enrichment for an IP address or hostname without treating the result as a risk verdict.

FullHunt's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. FullHunt's docs list 3 of the 10 fields on our checklist: Owner's name, Network range, Region and city.
We haven't run FullHunt 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/fullhunt/free
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://fullhunt.io/pricing/console?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://fullhunt.io/api/v1/nexus/ip-lookup`
- API key: with the plan, on https://fullhunt.io/pricing/console?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Its API docs: https://docs.fullhunt.io/api-reference/nexus/look-up-ip-or-host-context?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: FullHunt (https://fullhunt.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 30%
- Owner's name: ✓
- Network range: ✓
- Region and city: ✓

## Price

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

## Charges

- Also pays for: from the same budget: 62 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Retrieve Nexus enrichment for an IP address or hostname without treating the result as a risk verdict.

## Data

- Keep data: no limit
- Use data: Free & Builder: "Internal use only. You may not redistribute, resell, or embed FullHunt data in products sold to third parties." Free: "Internal / evaluation only". "License to Use: We grant you a limited, non-exclusive, non-transferable, revocable license to access and use the Services strictly for your internal security operations, or in accordance with a specific OEM or commercial agreement." "Restrictions: You may not resell, redistribute, reverse-engineer, decompile, create derivative works from, or extract the underlying data pipeline of the Services without an explicit written partner or API agreement." "Defensive Intent: You will use the Services strictly for defensive, risk management, administrative, and other legitimate cybersecurity purposes." "You must not use FullHunt's infrastructure, intelligence, or APIs to: Conduct unauthorized scanning, exploitation, or hacking of third-party systems. Launch Denial of Service (DoS) attacks or deliberately disrupt network operations. Use data obtained through the Services to facilitate unlawful activity, extortion, corporate espionage, or any activity that violates the rights of third parties. Bypass, disable, or interfere with any security controls, rate limits, or usage restrictions of the Services. Access or attempt to access the Services through any means other than the interfaces and documentation provided by FullHunt."

## Plan

- Pay: $0
- You get: 10 credits a month
- Enough for: 10 calls a month
- Expires: credits reset monthly

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: query
- Method: GET
- Path: /nexus/ip-lookup

## About the plan

- Plan: Free
- Who can get it: anyone who signs up, internal / evaluation use only

## The 6 fields the plan's answer can hold

IP address, network, provider, organization, location, hostname

## FullHunt's plans (6)

- [FullHunt, free](https://datacircle.dev/ip-company-lookup-apis/fullhunt/free/llms.txt): $0.00 per 1,000, 30% complete
- [FullHunt, $149 monthly](https://datacircle.dev/ip-company-lookup-apis/fullhunt/149-monthly/llms.txt): $298.00 per 1,000, 30% complete
- [FullHunt, $1,499 monthly](https://datacircle.dev/ip-company-lookup-apis/fullhunt/1499-monthly/llms.txt): $149.90 per 1,000, 30% complete
- [FullHunt, $5,500 monthly](https://datacircle.dev/ip-company-lookup-apis/fullhunt/5500-monthly/llms.txt): $183.333 per 1,000, 30% complete
- [FullHunt, $9,600 monthly](https://datacircle.dev/ip-company-lookup-apis/fullhunt/9600-monthly/llms.txt): $160.00 per 1,000, 30% complete
- [FullHunt, contact us](https://datacircle.dev/ip-company-lookup-apis/fullhunt/contact-us/llms.txt): 30% complete

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

- `GET /nexus/ip-lookup`: [FullHunt, free](https://datacircle.dev/ip-company-lookup-apis/fullhunt/free/llms.txt)

## FullHunt's APIs (2)

- [FullHunt: domain WHOIS API pricing, 6 plans](https://datacircle.dev/domain-whois-apis/fullhunt/free/llms.txt)
- [FullHunt: IP company lookup API pricing, 6 plans](https://datacircle.dev/ip-company-lookup-apis/fullhunt/free/llms.txt)

## FullHunt: IP company lookup API alternatives

- [Elioplus, $99 monthly](https://datacircle.dev/ip-company-lookup-apis/elioplus/99-monthly/llms.txt): $39.60 per 1,000, 60% complete, 7 days
- [Retention.com, $199 pack](https://datacircle.dev/ip-company-lookup-apis/retention-com/199-pack/llms.txt): $39.80 per 1,000, 10% complete
- [HubVibe, $25 pack](https://datacircle.dev/ip-company-lookup-apis/hubvibe/25-pack/llms.txt): $100.00 per 1,000, 40% complete, 1 month
- [Censys, $599 monthly, Censys Starter Pro, POST /v3/global/asset/host](https://datacircle.dev/ip-company-lookup-apis/censys/599-monthly-censys-starter-pro-post-v3-global-asset-host/llms.txt): $149.75 per 1,000, 50% complete
- [Espysys, €450 monthly](https://datacircle.dev/ip-company-lookup-apis/espysys/450-monthly/llms.txt): $900.24 per 1,000, 50% 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 2026-11-07.

- https://docs.fullhunt.io/api-reference/nexus/look-up-ip-or-host-context?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://docs.fullhunt.io/knowledge-base/guides/soc-ioc-enrichment?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://docs.fullhunt.io/nexus?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://docs.fullhunt.io/nexus/ip-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://docs.fullhunt.io/plans-and-credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://docs.fullhunt.io/rate-limiting?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://fullhunt.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://fullhunt.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://fullhunt.io/pricing/console?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://fullhunt.io/terms-and-conditions?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing