The SFA are searching for a boss following Craig Levein's sacking earlier this month and are hoping to have him in place for the World Cup qualifier against Wales in March.
A host of names have been linked with the post and Coyle is open to an approach from officials at Hampden.
Speaking on Sky Sports Footballers' Football Show, he said: "Any job I've had people have come to me because I've never applied for a job.
"Geoff Brown, the St Johnstone chairman, came to me when I was playing at Airdrie as assistant manager, Burnley approached me and Bolton obviously came for me when I was at Burnley so I've been very fortunate in that respect.
"So if someone wants to speak to me of course I am always open. I've turned down a couple of things in the last few weeks because I didn't think they were the right thing for me at this time.
"But, whatever happens, I know I will be ready for the next challenge when it comes about."