Kirby disputed Lee's version of the story, and claimed Lee had minimal involvement in the character's creation.
According to Kirby, the idea for Spider-Man had originated with Kirby and Joe Simon, who in the 1950s had developed a character called the Silver Spider for the Crestwood Publications comic Black Magic, who was subsequently not used.
One of the first things I did was to work up a costume. But the whole thing was created by Steve on his own...
I think I added the business about the webs coming out of his hands." Amazing Fantasy #15 (August 1962) first introduced the fictional character.
Simon concurred that Kirby had shown the original Spider-Man version to Lee, who liked the idea and assigned Kirby to draw sample pages of the new character but disliked the results—in Simon's description, "Captain America with cobwebs".