SoundCloud successfully migrated to WunderGraph Cosmo, reducing infrastructure costs by an impressive 86% and improving query latency by 45%. This was achieved through the adoption of an open-source GraphQL Federation model, which provided cost-effective scalability without restrictive licensing. By migrating away from a third-party solution, SoundCloud gained full control over its GraphQL infrastructure, enabling them to optimize performance, reduce overhead, and improve efficiency. The company's journey highlights the benefits of choosing the right GraphQL strategy, including flexibility, cost savings, and improved performance. With ongoing optimization efforts, SoundCloud is poised to further reduce spending without compromising performance, making it an attractive example for companies looking to optimize their API and microservices infrastructure.