# Add Public Key for a Network

In Polkadot Vault after you add the chain specs and metadata for a network, you then need to add your Public Key for that network so that you can conduct transactions:

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The following steps need to be carried out on your **Polkadot Vault Device**.
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1. Ensure that you have added the desired network chain specs and metadata as described above.
2. Select the **Key Sets** tab.
3. Select the plus **+** icon at the top right of the screen.
4. Select the **Network** field and then Select your desired **network** in the list.
5. Input your desired account derivation path and then Select **Done**.
6. Select **Create Derived Key**.
7. Review the message about writing down your Derivation Path then Select the **I have written down my derivation path name** field and then Select **Done** and complete the PIN / Biometry confirmation if prompted.