FusionAuth - FusionAuth is a CIAM platform that is 100% free for unlimited users.
Eyep - Coolest way to get your IP
Beagle - Secure your website before hackers break into it.
Antideo - Email, IP address and phone number validation API service
blockslack.io - Chat for small teams — encrypted and decentralized
Secure Send - Securely send passwords or sensitive data