# SignupVet, free: IP company lookup API

> Location, network, datacenter, VPN, Tor

SignupVet's Free plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. SignupVet's docs list 6 of the 10 fields on our checklist: Owner's name, ASN, Country, Region and city, VPN and proxy, Hosting.
We haven't run SignupVet 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/signupvet/free
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://www.signupvet.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#pricing
- Request: `POST https://www.signupvet.com/verify/ip`
- API key: with the plan, on https://www.signupvet.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#pricing
- Its API docs: https://www.signupvet.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: SignupVet (https://www.signupvet.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 60%
- Owner's name: ✓
- ASN: ✓
- Country: ✓
- Region and city: ✓
- VPN and proxy: ✓
- Hosting: ✓

## Price

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

## Charges

- Also pays for: from the same budget: Combined signup score · Email check · Phone check

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Location, network, datacenter, VPN, Tor

## Data

- Keep data: no limit
- Use data: You may use SignupVet only to protect your own products from fraud and abuse, and only in line with applicable law. In particular you must: have a legal basis for sending us your users' data and inform them in your privacy notice that signups are checked for fraud prevention, not use the service to harass, discriminate against or profile people beyond fraud prevention, not resell or redistribute the service or its results as a data product, scrape it [...], not overload, probe or circumvent the limits and security of the service. [...] Check people who are not your users. Do not run purchased, scraped or third-party lists through the service, build marketing or contact lists, enrich data for outreach, or look up people to track, profile or harass them. [...] Resell or repackage the service. Do not resell, sublicense or publish SignupVet results as a data product, and do not offer the API to others as part of your own lookup or verification service without a written agreement with us.

## Plan

- Pay: $0
- You get: 250 requests a month
- Enough for: 250 calls a month

## Rate limit

- Per second: 10
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip. Optional: context.timezone, context.user_agent, context.referrer, context.sign_up_source, context.accept_language
- Method: POST
- Path: /verify/ip

## About the plan

- Plan: Free
- Who can get it: businesses, trades and professions, not consumers

## The 18 fields the plan's answer can hold

request ID, status, risk score, risk level, recommendation, reason code, country, region, city, ASN, organization, datacenter, VPN, Tor, risk categories, confidence, data sources, latency

## SignupVet's plans (5)

- [SignupVet, free](https://datacircle.dev/ip-company-lookup-apis/signupvet/free/llms.txt): $0.00 per 1,000, 60% complete
- [SignupVet, $15 pack](https://datacircle.dev/ip-company-lookup-apis/signupvet/15-pack/llms.txt): $15.00 per 1,000, 60% complete
- [SignupVet, $49 monthly](https://datacircle.dev/ip-company-lookup-apis/signupvet/49-monthly/llms.txt): $9.80 per 1,000, 60% complete
- [SignupVet, $199 monthly](https://datacircle.dev/ip-company-lookup-apis/signupvet/199-monthly/llms.txt): $7.96 per 1,000, 60% complete
- [SignupVet, contact us](https://datacircle.dev/ip-company-lookup-apis/signupvet/contact-us/llms.txt): 60% complete

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

- `POST /verify/ip`: [SignupVet, free](https://datacircle.dev/ip-company-lookup-apis/signupvet/free/llms.txt)

## SignupVet's APIs (3)

- [SignupVet: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/signupvet/free/llms.txt)
- [SignupVet: IP company lookup API pricing, 5 plans](https://datacircle.dev/ip-company-lookup-apis/signupvet/free/llms.txt)
- [SignupVet: phone validation API pricing, 5 plans](https://datacircle.dev/validate-phone-apis/signupvet/free/llms.txt)

## SignupVet: IP company lookup API alternatives

- [IPHub, $29 monthly, Professional 5,000 requests / month, GET /ip/{ip}](https://datacircle.dev/ip-company-lookup-apis/iphub/29-monthly-professional-5000-requests-month-get-ip-ip/llms.txt): $5.80 per 1,000, 50% complete
- [Criminal IP, $1,069 yearly, Starter, GET /v1/asset/ip/report](https://datacircle.dev/ip-company-lookup-apis/criminal-ip/1069-yearly-starter-get-v1-asset-ip-report/llms.txt): $8.908 per 1,000, 10% complete
- [FraudLabs Pro, $249.95 monthly](https://datacircle.dev/ip-company-lookup-apis/fraudlabs-pro/249-95-monthly/llms.txt): $9.998 per 1,000, 20% complete
- [ip402.xyz, pay as you go](https://datacircle.dev/ip-company-lookup-apis/ip402-xyz/pay-as-you-go/llms.txt): $10.00 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 2026-11-05.

- https://www.signupvet.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://www.signupvet.com/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://www.signupvet.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://www.signupvet.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://www.signupvet.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing