Prompt Engineer

Call any API and know exactly what happened.

For prompt & AI engineers. Follow a request from your laptop to a server and back — DNS, ports, HTTP, JSON, and the auth token that opens the door.

Lessons in this path

• The Round Trip — Watch one API call cross the internet and return.
• Clients & Servers — A server is a computer running a listening process.
• Names to Addresses — Turn a name into an address you can reach.
• Ports: Many Doors, One Machine — One machine, many ports — each a different process.
• Anatomy of HTTP — See the moving parts inside one HTTP exchange.
• APIs, JSON & Tokens — Call a real API: token in, JSON out.