# MxToolbox, free, GET /api/v1/Lookup/arin/: IP company lookup API

> Integrate our high quality lookup tools and monitoring services with your applications!

MxToolbox's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. MxToolbox's docs list 1 of the 10 fields on our checklist: Owner's name.
We haven't run MxToolbox through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
Half of the 398 plans we rank by price cost $0.112 per 1,000 IP addresses or less. This plan and 30 others tie for the lowest price per 1,000 IP addresses of the 398 plans. [See the best free IP company lookup API plan.](https://datacircle.dev/best-ip-company-lookup-api.txt)
[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/mxtoolbox/free-get-api-v1-lookup-arin
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://mxtoolbox.com/c/mxtoolboxproducts?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://api.mxtoolbox.com/api/v1/Lookup/arin/`
- API key: with the plan, on https://mxtoolbox.com/c/mxtoolboxproducts?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Its API docs: https://mxtoolbox.com/api/api-reference?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#commands
- Sold by: MxToolbox (https://mxtoolbox.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 10%
- Owner's name: ✓

## Price

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

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Integrate our high quality lookup tools and monitoring services with your applications!

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: argument. Optional: port
- Method: GET
- Path: /api/v1/Lookup/arin/

## About the plan

- Plan: Free
- Who can get it: anyone with a free MxToolbox account

## The 13 fields the plan's answer can hold

lookup ID, command, argument, time recorded, reporting name server, time to complete, is endpoint, has subscriptions, failed checks, warnings, passed checks, timeouts, registered owner

## MxToolbox's plans (1)

- [MxToolbox, free, GET /api/v1/Lookup/arin/](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-arin/llms.txt): $0.00 per 1,000, 10% complete

## MxToolbox's calls (2)

- `GET /api/v1/Lookup/arin/`: [MxToolbox, free, GET /api/v1/Lookup/arin/](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-arin/llms.txt)
- `GET /api/v1/Lookup/asn/`: [MxToolbox, free, GET /api/v1/Lookup/asn/](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-asn/llms.txt)

## MxToolbox's APIs (1)

- [MxToolbox: IP company lookup API pricing, 1 plan, GET /api/v1/Lookup/arin/](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-arin/llms.txt)

## MxToolbox: IP company lookup API alternatives

- [DNSlytics, free](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free/llms.txt): $0.00 per 1,000, 30% complete
- [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt): $0.00 per 1,000, 50% complete
- [IPBot, free, Anonymous, GET /v1/ip/{ip}](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip/llms.txt): $0.00 per 1,000, 80% complete
- [IP-API.com, free, POST /batch](https://datacircle.dev/ip-company-lookup-apis/ip-api-com/free-post-batch/llms.txt): $0.00 per 1,000, 50% complete, 24 hours

## 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://knowledgebase.mxtoolbox.com/home/about-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://knowledgebase.mxtoolbox.com/home/api-methods?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://mxtoolbox.com/Public/Content/TermsAndConditions.aspx?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://mxtoolbox.com/api/api-reference?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://mxtoolbox.com/arin.aspx?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://mxtoolbox.com/c/mxtoolboxproducts?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://mxtoolbox.com/c/products/mxtoolboxapi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing