Youtuber blondiebytes published a great video that takes users step-by-step through the whole process of creating a fact Alexa skill. Her beginner Alexa Skill tutorial in this video is full of great insider tips. This video is a great starting point if you have no experience with the Alexa Developer Console. You can easily take her example as a starting point and integrate an API response into your skill.
blondiebytes has a lot of other great content for Alexa and other software-related tops on her channel, check it out here! Make sure to like and subscribe if you enjoyed her video! Stay tuned for more beginner Alexa Skill tutorials!