Polkadex - Setup Guide

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1. Install

Use our script for a quick installation:

wget -q -O && chmod +x && sudo /bin/bash

Specify your node name and wait for the installation.

You can check the logs with the command:

journalctl -u polkadexd -f

2. Creating a validator

2.1. Install Polkadot extenstion

To install, go to the website and download the version for your browser:


2.2. Creating an account

First, go to the website and allow access to the extension in the pop-up window:


We need to create an account(s) (you can use existing accounts), to do this click Add account:


Then we enter the name of the wallet (in our case it is stash), save the mnemonic, enter the password and click “Next”:



After that, confirm the creation of the account by clicking on Save and download the json file (the download will start automatically):


2.3. Requesting the funds

Follow the official guide here.

2.4 Staking

Now we need to staking our tokens, to do this, go to the tab Network -> Staking:


Now go to the Account actions tab and click on Stash:


The window for bonding will open, the value bonded will be set automatically, it is not recommended to bond the entire balance:


Approve the tx (Sign and Submit):


2.5. Session key

Now we need to enter the session key for our account, to do this on the server with the node run the following command:

curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "author_rotateKeys", "params":[]}' | jq .result | sed 's/"//g'

The output should looks like the following:


Copy this value (you can use double left mouse click for quick selection) by pressing Enter or by right-clicking the mouse.

Then go back to the site and click Session key:


In the opened window enter the key that we copied and click Set Session Key, confirm the tx. If successful, you output should looks like the following:


2.6. Connecting the validator

Make sure that your node is synced with the network. To do this, go to the telemetry and make sure that the height of your node equals the network height.

Click Validate:


Set the desired amount of commission, confirm the transaction. Now you should see approximately the following:


Now you should see like the following:


Congratulations, you are now a validator candidate (you can see your account in the Waiting tab)! To become a validator you need to wait for the next era (you can check your validator status here).

Good luck!


Use our script, choose option 2 – update:

wget -q -O && chmod +x && sudo /bin/bash

Then repeat steps from 2.3.