Someone has already added that SSH key.

[Konstantinos Kallipolitis]

I have two bitbucket accounts and want to access them via ssh from my laptop.When I add the ssh key to the second account i get "Someone has already added that SSH key". Cant I use the same ssh key in both the accounts?

[Nic Brough -Adaptavist-]

Welcome to the Atlassian Community!

You should not be sharing keys or certificates between different people (accounts), it's not secure and not what they are for.

So, no, Bitbucket won't let you use the same key for two accounts.