Enable the dYdX chain in Keplr
Keplr supports hundreds of Cosmos chains but lets you pick which ones to enable. dYdX (chain id dydx-mainnet-1) must be checked before the wizard can talk to your wallet.
Open the Select Chains screen
After importing or creating a wallet, Keplr shows a "Select Chains" step (or under the hamburger menu → Settings → Manage Chain Visibility). The default selection is just Cosmos Hub and Osmosis.
Type "dydx" into the search bar. You'll see dYdX with its native logo. Check the box on the right.
Uncheck what you don't need
If you only care about dYdX, you can uncheck Cosmos Hub and Osmosis. This reduces clutter in the Keplr main view so you only see balances on chains you actually use.
You can always re-enable other chains later — disabling is non-destructive, the addresses are still derived from your seed.
Verify the address
Click Save. Keplr opens the wallet view. You'll see your dydx1… address at the top. Confirm it matches what you expect — the same address you use on dydx.trade or that you set as DYDX_ADDRESS in your bot.
If the address is different, you imported a different recovery phrase than intended. Switch wallet via Keplr's account dropdown or re-import the correct phrase.