Spacelift has introduced the Prometheus Exporter to enable customers to connect their Spacelift account to external monitoring systems. The exporter allows users to monitor various metrics about their Spacelift account over time, which can be visualized using tools like Grafana and used for alerting purposes with Alertmanager. The exporter works by acting as an adapter between Prometheus and the Spacelift GraphQL API, converting requests into the expected metrics format. Instructions on how to deploy and configure the exporter are provided in the article.