Most government departments have some form of api. Many use openapi (swagger) and have design decisions like this one, excepting the major APIs, like FDA. They

Most government departments have some form of api. Many use openapi (swagger) and have design decisions like this one, excepting the major APIs, like FDA. They enable projects like https://ofr.report/ https://ofr.report/ or https://sec.report/ https://sec.report/