No. 0002 in Privacy and security
FFraud
A free and open API that checks IP addresses and emails for fraud
About FFraud
FFraud checks an IP address for VPN, proxy, Tor, datacenter and residential proxy use, adds its abuse history, and returns a fraud score from 0 to 100. It also spots disposable and temporary email addresses, role accounts and reported spammers.
Single lookups work without a key or a sign-up. A free API key adds batch lookups and usage statistics, and the lookups have no daily or monthly caps.
FFraud also publishes its data openly under the MIT license, including about 1.6 million confirmed attacker IP addresses and more than 220,000 disposable email domains.
