The midfielder was a standout as Monk’s men recorded a 2-2 draw at champions Chelsea on the opening day of the Premier League season on Saturday.
Shelvey attracted criticism from his manager last year for a perceived lack of commitment but Monk has been buoyed by the way the 23-year-old has reacted following a meeting with the player, his father and his agent.
Shelvey’s pass played in Bafetimbi Gomis who won Swansea’s equalising penalty and now his challenge is to add to his sole international appearance against San Marino in 2012.
Monk said: “He’s a young player, which you forget about because he looks older, but he has talent. His technical ability is excellent.
“I said a few things last season to see what reaction I might get and I’m glad to say I got the right reaction. He did it at the end of last season and has done it again.
“He’s a great lad. Keep him motivated and he can produce his best football like he did against Chelsea.
“It would be nice to have an English international at Swansea. I am just focusing on the group at Swansea. What will be will be.
“He realises how serious it is at this level and what type of player he can be, it’s alright me wanting it for him but he has to want it for himself.”