WunderGraph Cosmo is an open-source platform for GraphQL Federation. A router provides one GraphQL endpoint for several independently developed backend services, known as subgraphs. Cosmo Studio supplies the schema registry, schema checks, analytics and distributed tracing. The vendor positions the platform for teams that grow from a first subgraph to a larger setup. Cosmo is available as self-hosted open-source software or as a managed service with a hosted control plane and self-hosted routers.
The vendor's terms of use state that the owner of the website is based in Florida, United States, and that the terms are governed by Delaware law, which places the vendor within US legal jurisdiction, including the CLOUD Act. The core code is licensed under Apache 2.0 and can run on the organisation's own infrastructure, so it keeps control of its data flows. The privacy policy does not mention the GDPR or a data processing agreement, and the hosting location of the managed service is not stated. European organisations that self-host therefore keep more control over where their data resides.