Smoltz wants to pitch next season
Smoltz, 42, met with his agents on Tuesday and informed them of his desire to extend his 22-year career.
Smoltz, a free agent, is open to starting or relieving, according to a source with knowledge of his thinking.
He does not have a specific team in mind, but figures to again end up in the National League.
Smoltz signed a free-agent contract with the Red Sox last winter but was released after going 2-5 with an 8.32 ERA in eight starts.
He then signed with the Cardinals and performed much better, going 1-3 with a 4.26 ERA in seven starts.