The StoneOne open IoT platform is powered by FIWARE and provides building blocks, tools and expertise for developing individual digital service platforms across all sectors in an open, economical manner with fast time-to-market. The platform connects and configures various services using standardized APIs and delivers data in a standard format. Onboarding captures detailed descriptions of services, devices, APIs and data formats for consistent integration. Dashboards can be customized and contain widgets for monitoring. Services are billed flexibly through various billing models and pooled invoices. A use case example is the SmartOrchestra platform which combines private and municipal services for users to buy, subscribe and manage from one source.