# IPAddress.to, free, GET /score/{ip_or_hostname}: IP company lookup API

> A 0–100 risk score built from threat blocklists, VPN/proxy/Tor detection, ASN classification, reverse-DNS heuristics and bot signals.

IPAddress.to's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. IPAddress.to's docs list 2 of the 10 fields on our checklist: Owner's name, ASN.
You get as many calls as you like.
We haven't run IPAddress.to 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/ipaddress-to/free-get-score-ip-or-hostname
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://ipaddress.to/api/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://ipaddress.to/api/score/{ip_or_hostname}`
- API key: not needed
- Its API docs: https://ipaddress.to/api/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#score
- Sold by: IPAddress.to (https://ipaddress.to?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 20%
- Owner's name: ✓
- ASN: ✓

## Price

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

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: A 0–100 risk score built from threat blocklists, VPN/proxy/Tor detection, ASN classification, reverse-DNS heuristics and bot signals.

## Data

- Keep data: no limit
- Use data: You agree not to: Use the Service for any unlawful purpose or in violation of any applicable laws, Attempt to disrupt, overload, or impair the Service's infrastructure, Use automated tools to excessively scrape or crawl the Service beyond reasonable API usage, Circumvent any rate limits or access restrictions, Use the Service to harass, stalk, or harm other individuals, Misrepresent your identity or affiliation when using the Service. [...] The API is provided free of charge for reasonable use. We reserve the right to impose rate limits, restrict access, or require authentication at any time. [...] Information is provided "as is" for informational purposes only. [...] You may not copy, reproduce, or redistribute any part of the Service without prior written consent.

## Plan

- Pay: $0
- Enough for: no limit

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip_or_hostname
- Method: GET
- Path: /score/{ip_or_hostname}

## About the plan

- Plan: Free
- Who can get it: anyone

## The 5 fields the plan's answer can hold

IP address, company name, company type, ASN, ASN organization

## IPAddress.to's plans (1)

- [IPAddress.to, free, GET /score/{ip_or_hostname}](https://datacircle.dev/ip-company-lookup-apis/ipaddress-to/free-get-score-ip-or-hostname/llms.txt): $0.00 per 1,000, 20% complete

## IPAddress.to's calls for this API (2)

- `GET /score/{ip_or_hostname}`: [IPAddress.to, free, GET /score/{ip_or_hostname}](https://datacircle.dev/ip-company-lookup-apis/ipaddress-to/free-get-score-ip-or-hostname/llms.txt)
- `GET /lookup/{ip_or_hostname}`: [IPAddress.to, free, GET /lookup/{ip_or_hostname}](https://datacircle.dev/ip-company-lookup-apis/ipaddress-to/free-get-lookup-ip-or-hostname/llms.txt)

## IPAddress.to's APIs (3)

- [IPAddress.to: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/ipaddress-to/free/llms.txt)
- [IPAddress.to: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/ipaddress-to/free/llms.txt)
- [IPAddress.to: IP company lookup API pricing, 1 plan, GET /score/{ip_or_hostname}](https://datacircle.dev/ip-company-lookup-apis/ipaddress-to/free-get-score-ip-or-hostname/llms.txt)

## IPAddress.to: 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://ipaddress.to?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipaddress.to/api/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipaddress.to/api/score/8.8.8.8?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://ipaddress.to/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing