I also struggled with this a bit and ended up using https://quotesondesign.com for mine. Their API has good documentation, doesn’t require any sign-up, uses https (which gets around cross security issues which seem to come up with some these these projects) and the quotes fit the content of the course fairly well too.
I’ve built a Golang application, it’s database-less, you must have Go installed in order to compile it, the quotes are hard-coded (that’s why it doesn’t use a database), and it serves an API over localhost:8080/quotes.
[
{
"id": "1",
"content": "Don't cry because it's over, smile because it happened.",
"author": {
"name": "Dr. Seuss"
}
},
{
"id": "2",
"content": "So many books, so little time.",
"author": {
"name": "Frank Zappa"
}
},
{
"id": "3",
"content": "You know you're in love when you can't fall asleep because reality is finally better than your dreams.",
"author": {
"name": "Dr. Seuss"
}
}
]