# I can no longer add passkeys to my Onlykey Duo

**URL:** <https://onlykey.discourse.group/t/i-can-no-longer-add-passkeys-to-my-onlykey-duo/1232>\
**Category:** Two Factor Authentication\
**Created:** [March 9, 2024, 2:31pm UTC](https://onlykey.discourse.group/t/i-can-no-longer-add-passkeys-to-my-onlykey-duo/1232 "2024-03-09T14:31:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wishy](https://yyz2.discourse-cdn.com/free1/user_avatar/onlykey.discourse.group/wishy/32/209_2.png) [@wishy](https://onlykey.discourse.group/u/wishy)\
**Post date:** [March 9, 2024, 2:31pm UTC](https://onlykey.discourse.group/t/i-can-no-longer-add-passkeys-to-my-onlykey-duo/1232/1 "2024-03-09T14:31:24Z")

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![CredentialUIBroker_fMrpw9Kxk6](https://global.discourse-cdn.com/free1/uploads/onlykey/original/1X/239c5c4d7ca772fd8bc39e4045f41683e37ba8dd.png)

I have many accounts, and I figured I would upgrade all of them to have passkey support, however I noticed that now I can no longer add new ones, and I have no idea how many are registered or if there are duplicates that can be removed.

Some help would be appreciated.

UPDATE 1: Seems it must be something called residential keys, I guess I’ve used up my 12 slots, is there a way to wipe them and replace them, If I have only 12 slots I want to know which I want to keep and which i want to remove.

UPDATE 2: Nvm, found it, [https://docs.onlykey.io/command-line.html#list-and-remove-fido2-resident-key](https://docs.onlykey.io/command-line.html#list-and-remove-fido2-resident-key)

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**Author:** ![Parcel8715](https://yyz2.discourse-cdn.com/free1/user_avatar/onlykey.discourse.group/parcel8715/32/378_2.png) [@Parcel8715](https://onlykey.discourse.group/u/Parcel8715)\
**Post date:** [July 22, 2024, 6:21am UTC](https://onlykey.discourse.group/t/i-can-no-longer-add-passkeys-to-my-onlykey-duo/1232/2 "2024-07-22T06:21:32Z")

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Thx for the update. Very helpful.