# Maskbreak, free: IP company lookup API

> An IP reputation API that answers in one GET: GET /v1/lookup/{ip} checks an IPv4 or IPv6 address against the Tor Project’s exit list and nine cloud providers’ published ranges, and answers with a verdict and a 0–100 risk score, or known: false when there’s nothing on record.

Maskbreak's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. Maskbreak's docs list 4 of the 10 fields on our checklist: Owner's name, ASN, VPN and proxy, Hosting.
We haven't run Maskbreak 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/maskbreak/free
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://maskbreak.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://maskbreak.com/v1/lookup/{ip}`
- API key: with the plan, on https://maskbreak.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Its API docs: https://maskbreak.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#lookup
- Sold by: Maskbreak (https://maskbreak.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 40%
- Owner's name: ✓
- ASN: ✓
- VPN and proxy: ✓
- Hosting: ✓

## Price

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

## Charges

- Also pays for: Evaluate a visitor session

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: An IP reputation API that answers in one GET: GET /v1/lookup/{ip} checks an IPv4 or IPv6 address against the Tor Project’s exit list and nine cloud providers’ published ranges, and answers with a verdict and a 0–100 risk score, or known: false when there’s nothing on record.

## Data

- Keep data: no limit
- Use data: You agree to use the Services only for lawful purposes and in compliance with all applicable laws. You must NOT: Use the Services to engage in any activity that violates applicable local, national, or international law. Attempt to reverse-engineer, decompile, or extract the underlying algorithms or models of the Maskbreak API, except to the limited extent the restriction is prohibited by law or activity is expressly authorised by our Responsible Disclosure Policy. Use the Services to build a competing product or service. Resell or sublicense API access without our prior written approval. Conduct automated stress testing or load testing against the API without prior written permission. Use the Services to discriminate against individuals based on protected characteristics (race, gender, religion, nationality, disability, etc.). Use the Services to determine an individual’s creditworthiness, employment eligibility, financial status, tenancy or insurability, or as the basis of any other decision with legal or similarly significant effects on an individual, except where that use complies with applicable law, including any requirement for human review. Circumvent, disable, or interfere with bot detection, rate limiting, or anti-scraping measures.

## Plan

- Pay: €0
- You get: 100,000 requests a month
- Enough for: 100,000 calls a month
- Expires: end of the month

## Rate limit

- Per second: 55.56
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip
- Method: GET
- Path: /v1/lookup/{ip}

## About the plan

- Plan: Free
- Who can get it: persons aged 18 or over who use it wholly for business or professional purposes, not as consumers

## The 19 fields the plan's answer can hold

IP address, known, verdict, risk score, VPN, proxied, Tor, datacenter hosting, anonymizing behaviors, ASN, organization, cloud provider, registration country, network source, latency, engine verdict, verdict source, matched exceptions, test

## Maskbreak's plans (8)

- [Maskbreak, free](https://datacircle.dev/ip-company-lookup-apis/maskbreak/free/llms.txt): $0.00 per 1,000, 40% complete
- [Maskbreak, €29 monthly](https://datacircle.dev/ip-company-lookup-apis/maskbreak/29-monthly/llms.txt): $0.065 per 1,000, 40% complete
- [Maskbreak, €99 monthly](https://datacircle.dev/ip-company-lookup-apis/maskbreak/99-monthly/llms.txt): $0.045 per 1,000, 40% complete
- [Maskbreak, €299 monthly](https://datacircle.dev/ip-company-lookup-apis/maskbreak/299-monthly/llms.txt): $0.034 per 1,000, 40% complete
- [Maskbreak, €290 yearly](https://datacircle.dev/ip-company-lookup-apis/maskbreak/290-yearly/llms.txt): $0.054 per 1,000, 40% complete
- [Maskbreak, €990 yearly](https://datacircle.dev/ip-company-lookup-apis/maskbreak/990-yearly/llms.txt): $0.037 per 1,000, 40% complete
- [Maskbreak, €2,990 yearly](https://datacircle.dev/ip-company-lookup-apis/maskbreak/2990-yearly/llms.txt): $0.028 per 1,000, 40% complete
- [Maskbreak, contact us](https://datacircle.dev/ip-company-lookup-apis/maskbreak/contact-us/llms.txt): 40% complete

## Maskbreak's calls (1)

- `GET /v1/lookup/{ip}`: [Maskbreak, free](https://datacircle.dev/ip-company-lookup-apis/maskbreak/free/llms.txt)

## Maskbreak's APIs (1)

- [Maskbreak: IP company lookup API pricing, 8 plans](https://datacircle.dev/ip-company-lookup-apis/maskbreak/free/llms.txt)

## Maskbreak: IP company lookup API alternatives

- [ipbase, $1,990 yearly, Business (yearly), GET /v2/info](https://datacircle.dev/ip-company-lookup-apis/ipbase/1990-yearly-business-yearly-get-v2-info/llms.txt): $0.028 per 1,000, 80% complete, 1 day
- [ipwhois.io, $199.90 yearly](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/199-90-yearly/llms.txt): $0.028 per 1,000, 50% complete
- [IPDetective, $25 monthly, Basic, GET /ip/{ip}](https://datacircle.dev/ip-company-lookup-apis/ipdetective/25-monthly-basic-get-ip-ip/llms.txt): $0.028 per 1,000, 30% complete
- [DB-IP, €149.90 monthly, Premium 200K Core API, GET /v2/{apiKey}/as/{ipAddress}](https://datacircle.dev/ip-company-lookup-apis/db-ip/149-90-monthly-premium-200k-core-api-get-v2-apikey-as-ipaddress/llms.txt): $0.028 per 1,000, 40% 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://maskbreak.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://maskbreak.com/ip-reputation-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://maskbreak.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://maskbreak.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://maskbreak.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing