MaxMind minFraud charges $0.005 to $0.020 a query, and 1Lookup charges $0.025 for a signup checked, with the verdict, the reasons and a phone check in one call.

Pay as you go, billed per query from prepaid service credit, with 'No Commitment' and 'No Minimums'. minFraud Score is $0.005 a query, Insights $0.015 and Factors $0.020, which is $5, $15 and $20 per 1,000 (arithmetic). Credit presets are $25, $50, $100 and $250, or a custom whole-dollar amount between $20 and $25,000. Volume discounts exist but no tiers are published. Checked October 2026.

Score returns an overall transaction risk score and an IP risk score. Insights adds IP risk reasons and 'over 80 data points on IPs, emails, devices, payment cards, and more'. Factors adds risk reasons that explain what is behind a score. Custom rules can label a transaction accept, reject or manual review. Checked October 2026.

5 credits per signup checked, billed for every completed check, whatever the verdict. On the Starter plan ($99 a month for 20,000 credits) a check is about $0.025, which covers 4,000 signups a month and is $24.75 per 1,000. At the Enterprise end of the rate card it is about $0.010.

No. minFraud Score is $5.00 per 1,000 queries, Insights $15.00 and Factors $20.00 (arithmetic on the printed per-query prices), against $24.75 per 1,000 on 1Lookup Starter. MaxMind is cheaper than Starter at every level it sells, and Score is cheaper than even the Enterprise end of the 1Lookup rate card, $9.99 per 1,000.

Its product page describes transaction data like 'IP, email, credit card, device, physical address, and more' and does not mention phone checks, so this page makes no claim about them either way. 1Lookup checks an optional phone number for invalid and VoIP lines and for a phone from another country than the IP address.

The email address, which is required: Gmail dots and +tags collapse to the real inbox, and disposable domains, brand-new domains, domains with no mail server and mailboxes that do not exist are flagged. The IP address, which is optional: data center, VPN, proxy and Tor addresses and public blocklists. The phone number, which is optional: invalid numbers, VoIP numbers and a phone from another country than the IP address. And the signups in the last hour on the same API key that share the IP address, the inbox or the email domain.

On price per query (Score at $5 per 1,000), on pay as you go with no minimums from $20 of prepaid credit, and on breadth: the product page describes IP, email, credit card, device, physical address and more, and Insights adds over 80 data points. It also lets you write custom rules that label a transaction accept, reject or manual review. 1Lookup reads the email address, the IP address and the phone number, and returns review from a score of 35 and block from 70.

MaxMind offers a free trial of up to 1,000 queries on request, and the length is not stated. 1Lookup starts with a 7-day free trial.

If you want the lowest price per query, pay as you go with no minimums, or payment and address data in the same score, minFraud is the better fit. If you want the verdict, the score and the reasons in plain words at one price, with a phone check and a one-hour count of repeat signups, 1Lookup's Signup Check bills 5 credits for every completed check.

Yes if you want a low price per query and data on payments and addresses beside the IP address and email; Score starts at $0.005 a query. If you only need to judge the email, the IP address and the phone number of a new signup and read the reasons in plain words, compare the per-check price of 1Lookup.