OpenMeter Cloud has raised $3 million in seed funding from Y Combinator, Haystack, and Sunflower Capital to help engineers monetize AI products and standardize usage metering. The platform enables engineers at AI companies to process millions of usage events per second for product, revenue, and efficiency teams. OpenMeter Cloud is a managed version of the open-source metering engine that offers usage insights, Stripe integration, visibility, and understanding of per-usage cost. It helps engineers adopt cloud metering in minutes instead of months.