Systems and methods for streaming billing data associated with third-party network resources consumed by a managed network to a remote network management platform are disclosed. Streaming of billing usage data associated with third-party resources may use resource identifiers to associate resources with line items in a service bill generated by the third-party network. A proxy server in the managed network may intermediate streaming from the third-party network to a remote server in a computational instance of the remote network management platform. Billing data may be recorded partly in a metric-base database configured for storing time series data corresponding to usage quantities of third-party resources consumed by the managed network per unit time, and partly in a static records database configured for storing database records associated with the time series data, and including data for identifying the third-party resources and for recording static information relating to billing for the third-party resources.