In fact, if you listen to Marvel Studios President Kevin Feige, Spider-Man is more than just a key character in the MCU, he is the main guy when it comes to Marvel.
Chris Evans has a cameo as Captain America (who we now know is not Kevin Feige’s favorite Marvel character).
Kevin Feige has called Spider-Man the greatest superhero.
This summer, Spider-Man is a huge part of the movie landscape with Spider-Man: Homecoming, starring Tom Holland as a youthful Peter Parker and featuring Robert Downey Jr’s Tony Stark in the role of mentor.