Marxsaid.com is an REST API that returns a random Groucho Marx quote in JSON format. You can use curl in order to retrieve a quote.
An example of a curl GET below.
curl -X GET https://www.marxsaid.com/quote
{"Author":"Groucho Marx","quote":"I must say I find television very educational. The minute somebody turns it on, I go to the library and read a good book."}