These two statements confuse which one is correct? And can you explain how the usage of to & for changes the meaning of the statement?

Hey, are you open to a new project?

or

Hey, Are you open for a new project?

These two statements seem correct, but actually, which one is the proper statement? And can you explain how the usage of to & for changes the meaning of the statement?

Hey, are you open to a new project?

or

Hey, Are you open for a new project?