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IBKR API – reqFamilyCodes

Exciting news from IBKR API dev team! More support for comprehensive “family codes” in the API has been added (changes server-side). API traders can use the function reqFamilyCodes to check if an account already exists under an account family – such as an individual account under an advisor “umbrella”. Here is an example from our GitHub guide on how to find the family code:


public void familyCodes(FamilyCode[] familyCodes)
Console.WriteLine("Family Codes:");
foreach (var familyCode in familyCodes)
Console.WriteLine("Account ID: {0}, Family Code Str: {1}", familyCode.AccountID, familyCode.FamilyCodeStr); }

For more details, see

To download the API software package see our GitHub Guide:

Disclosure: Interactive Brokers

The analysis in this material is provided for information only and is not and should not be construed as an offer to sell or the solicitation of an offer to buy any security. To the extent that this material discusses general market activity, industry or sector trends or other broad-based economic or political conditions, it should not be construed as research or investment advice. To the extent that it includes references to specific securities, commodities, currencies, or other instruments, those references do not constitute a recommendation by IBKR to buy, sell or hold such investments. This material does not and is not intended to take into account the particular financial conditions, investment objectives or requirements of individual customers. Before acting on this material, you should consider whether it is suitable for your particular circumstances and, as necessary, seek professional advice.

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