tmpsms is a command line utility written in POSIX sh that allows you to get a temporary phone number and receive SMSes. It uses Upmasked temporary SMS service in order to receive the messages. This is a very useful tool for those who use are testing applications during bug bounty hunting or just need some privacy and don’t wan’t to use your personal phone number.

I don’t know when I’d ever use this, but I love that it’s POSIX compliant and depends on just a few other CLI tools (curl, jq, and fzf).