Saxo Bank Options Chain API
The Options Chain is a construct made specifically for displaying a number of options (ETOs or FxOptions) in a classic "Options Board" that orders the options according to Expiries and Strikes. It is made with the common UI needs of such a board in mind. The service provides endpoints for subscribing to a stream of (limited) price-data for a number of options (FX or ETO) and managing such subscriptions to provide e.g. scrolling.