1
In Blockhouse, on the OKX tab of the Credentials step, copy the Read-only API IPs and the Trading API IPs.Then ask your FalconX customer success contact to open a sub-account on OKX for this strategy, with two API keys: a read-only key whitelisted to the Read-only API IPs, and a trading key whitelisted to the Trading API IPs.
2
Enter the keys in Blockhouse
Once FalconX has sent the keys, copy each key’s API key, secret and passphrase into the matching fields on the OKX tab in Blockhouse, and tick IPs are whitelisted for read-only API and IPs are whitelisted for trading API.
3
Switch to Multi-currency margin
Log in to the sub-account on okx.com and open a perpetual’s trading page, such as BTCUSDT. Open Settings, the hexagon icon in the bar on the right. Account mode should read Multi-currency margin mode.If it doesn’t, open Account mode, scroll to Advanced mode, choose Multi-currency and Switch. When OKX asks you to Set margin collateral, choose All crypto and Confirm. Complete the knowledge test if OKX asks for one.
4
Turn on Auto-borrow
In the same Settings panel, under Preferences, turn Auto-borrow on.
5
Set one-way mode
In the same panel, Position mode should read One-way mode. If it doesn’t, open it, choose One-way mode and OK.
6
Finish in Blockhouse
FalconX needs no account ID per exchange, so there’s nothing more to enter on the OKX tab.Check that every key field on the tab is filled in and both IP boxes are ticked. Set up any other exchange from the FalconX guide, then submit the Credentials step.
OKX sources
OKX sources
Checked against OKX’s help centre and API docs on 9 October 2026. OKX renames menus from time to time; if a label differs, use the nearest match.