I just built a search API using their widget:
GET https://www.googleapis.com/youtube/v3/search?part=snippet&q=cold+water&key=%5BYOUR_API_KEY%5D HTTP/1.1
Authorization: Bearer [YOUR_ACCESS_TOKEN]
This allows for a search of all videos with keyword "Cold Water" (Shout out to JivTurkey)!
I estimate about Zero cost, and about 4 hours of coding time! If you need a wire frame, let me know!