An API Inspection job involves inspecting pressure vessels, piping systems, and storage tanks according to standards set by the American Petroleum Institute (API). Inspectors assess equipment for corrosion, cracks, and other defects to ensure safety, compliance, and reliability in industries like oil and gas, power plants, and refineries. They use techniques such as visual inspection, ultrasonic testing, and magnetic particle testing. API Inspectors must be certified (e.g., API 510, API 570, API 653) and adhere to industry regulations to prevent failures and accidents.