Keycard
Start guide
Help
FAQ
Keycard Shell
Start guide
Help
FAQ
Verify device
Update
Language
English
Français
Deutsch
Español
Nederlands
Cart
–
Cart
–
Language
English
Français
Deutsch
Español
Nederlands
Overview
Integrate Keycard
Java SDK
APDU Reference
Build Your Own Hardware
Resources
Contact
Developers
Contact
29 Jan 2026
#
Contact
For support, email
support@keycard.tech
or report issues on our
GitHub repositories
.
Last edited
29 Jan 2026