Why does BookyAI refuse my Base URL that starts with http://?

For an address on the internet BookyAI requires https://. Over plain http your key and your manuscript would travel unencrypted. Plain http is accepted for a server on your own computer or local network, such as http://localhost:1234/v1 or an address starting with 192.168. If your provider's address starts with https://, type it that way. Also do not put a user name or password in the address: use the key field.