 |
Player | Position | Former Team | New Team | Transaction date | Notes | |
| 1. | Hairston, Scott | OF | NYM | CHC | 2/10/13 | Two-year contract | |
| 2. | Harris, Willie | OF | NYM | CIN | 1/25/12 | Minor league contract | |
| 3. | Rauch, Jon | RP | NYM | MIA | 2/05/13 | One-year contract | |
| 4. | Capuano, Chris | SP | NYM | LAD | 12/02/11 | Two-year contract | |
| 5. | Boyer, Blaine | RP | ARI | NYM | 1/25/10 | Minor league contract | |
| 6. | Buck, John | C | TOR | NYM | 12/17/12 | Part of two big trades | |
| 7. | Byrdak, Tim | RP | NYM | NYM | 12/07/12 | Minor league contract | |
| 8. | Chavez, Raul | C | TOR | NYM | 1/14/11 | Signed Minors deal with Mets. | |
| 9. | Feliciano, Pedro | RP | NYY | NYM | 1/21/13 | Minor league contract | |
| 10. | Francisco, Frank | RP | TOR | NYM | 12/19/11 | Two-year contract | |
| 11. | Marcum, Shaun | SP | MIL | NYM | 1/30/13 | One-year contract | |
| 12. | Tankersley, Taylor | RP | MIA | NYM | 1/12/11 | Minor league contract | |
| 13. | Torres, Carlos | RP | COL | NYM | 11/15/12 | Minor league contract | |
| 14. | Thayer, Dale | RP | NYM | SD | 12/06/11 | Minor league contract | |
| 15. | Torres, Andres | OF | NYM | SF | 12/13/12 | One-year contract | |
| 16. | Carter, Chris | OF | NYM | TB | 1/04/11 | Minor league contract | |
| 17. | Young, Chris | SP | NYM | WSH | 2/21/13 | Minor league contract | |
| 18. | Buchholz, Taylor | RP | NYM | --- | --- | --- | |
| 19. | Dessens, Elmer | RP | NYM | --- | --- | --- | |
| 20. | Escobar, Kelvim | RP | NYM | --- | --- | --- | |
| 21. | Lewis, Fred | OF | NYM | --- | --- | Minor league free agent | |
| 22. | Tatis, Fernando | 1B | NYM | --- | --- | --- | |
|
|||||||
|
|||||||
