Per the source, the Hammers want Bony on a temporary move but may only be able to keep him on until the winter transfer window as he has a deal in place with an unnamed Chinese Super League club.
City are yet to confirm Bony having agreed terms with the mystery Chinese club in mention and the book makers are still pricing West Ham as favourite to sign the Ivory Coast international.
Skybet slashed the East London based clubs odds from outsiders down to clear favourites at odds of 1.4.
Considering the Hammers will be without record signing Andrew Ayew for four-months due to injury a six-month loan deal for Bony may be an attractive proposition.
Bony is almost certain to part ways with City after being instructed to find a new club this summer. Head coach Pep Guardiola has no plans for the powerful striker this season and has dropped him from the squad.