IBKR's APIs can be tested using Free Trial accounts. If you require a particular multi-account test structure, please contact your Sales Representative.
Can I test IBKR's APIs before my account is open and funded?
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Do I need a particular kind of account to use IBKR's APIs?
Who can use the IBKR's Web API?
How do I contact an institutional Sales Representative at IBKR?
Is there an Excel API for MacOS?