Lexxrt/FireFly ? reverse-engineered prompt

Build me a simple Python tool that looks up a phone number and shows basic info about it using the NumVerify API.

I want to be able to put my API key in a config file, then run the script from the command line with a phone number and get readable results like country, carrier, line type, and whether the number looks valid. Make it easy to use, with clear output and a friendly error message if the key is missing or the number is invalid.

Keep it lightweight and focused on one job. If you need to check the current NumVerify docs or install details, look them up online and wire it up cleanly.