Way off. Boyce & Hart wrote a number of their early tunes, and were their first studio producers, but from the first album Nesmith’s material was being incorporated. Other significant contributors along the way were Carole King, Neil Sedaka, Neil Diamond, David Gates, Harry Nillson, and Michael Murphy.
“Other significant contributors along the way were Carole King, Neil Sedaka, Neil Diamond, David Gates, Harry Nillson, and Michael Murphy.”
Might be worth mentioning that one of the Monkees’ biggest hits, “Daydream Believer”, was written by John Stewart, who first got recognition when he replaced Dave Guard in The Kingston Trio in the early 1960’s, and who went on to a long career as a solo artist and songwriter after the original Trio disbanded in 1967.