Ozone API, a global leader in open banking technology, has launched an industry-first tool called the “Build It Calculator” to estimate the cost of building and maintaining API infrastructure for US banks. The tool, which has been tested and validated by US banks, helps financial institutions understand the complexity and cost involved in building APIs, as well as the hidden costs of maintenance. The tool can estimate both the up-front cost and maintenance costs of building their own open banking APIs in a single phone call with Ozone API, providing clarity to initiatives that often reach eight-figure budgets. The tool has already been tested and validated by banks in the US.