As of version 0.1.6 of wklej script you can manage your pastes on wklej.org website. 
IN order to do this you will need to get an API KEY. To get the KEY follow
few simple steps:

1. Go to http://wklej.org/rejestracja/ and create an account.
2. Confirm/Activate  your account.
3. Go to http://wklej.org/salt and click "Wygeneruj nowy salt"
4. Copy the generated API Key to ~/.wklejrc file

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~/.wklejrc :

[DEFAULT]
KEY = MY_API_KEY
