| Project name | URL | Supported languages | License | Comments |
|---|---|---|---|---|
| Eclipse Keyple® | keyple.org | Java & C++ | Eclipse Public License v2.0 | Provides complete implementation of Keypop APIs for the Reader Layer and for the Calypso Card Layer |
| CNA Storage Card Libraries | calypsonet.org | Java only (C++ porting planned) | CNA member restricted | Provides Java implementation of Keypop APIs for the Storage Card Layer |