Is there a Financial API (for use in software development with a programming language such as Java, Python, or .NET) that provides Options Chains for US Stocks?
Yahoo! Finance had such an API available for around 20 years and it was terminated in 2017. Does a replacement exist, even if it is not free?
EDIT: Clarifying that this is for US Stocks, e.g. NYSE & NASDAQ, in response to the user comment.