Overview:
WunderGraph Cosmo is an open-source lifecycle API management platform for federated GraphQL architectures, licensed under Apache 2.0. It provides a suite of tools—including a Schema Registry, composition checks, analytics, metrics, tracing, and a router—to help organizations manage a unified GraphQL API composed from multiple smaller schemas maintained by different teams. The platform supports both monolithic and federated setups and can be deployed on-premises or used as a managed service.
Core Features:
Schema Registry: Centralized management of GraphQL schemas across services.
Composition Checks: Automated validation of schema composition before deployment.
Analytics & Metrics: Monitoring of API usage and performance data.
Distributed Tracing: End-to-end request tracing for federated queries.
Cosmo Router: High-performance routing layer for federated GraphQL requests.
Deployment Flexibility: Options for local Docker Compose, Kubernetes via Helm Chart, or managed service.
Use Cases:
Developers: Compose and test federated GraphQL schemas locally from multiple services using the Cosmo Router.
Architects: Evaluate the full platform features by running it with Docker Compose in a local environment.
Platform Engineers: Deploy and manage the entire Cosmo platform on Kubernetes through the official Helm Chart.
Decision Makers (e.g., CTOs): Assess the platform for organizational-wide adoption by discussing specific needs with the founders.
Why It Matters:
As an Apache 2.0 licensed platform, Cosmo offers organizations building federated GraphQL APIs a self-hosted alternative to proprietary GraphQL management services. Its support for both on-premises and managed deployment allows teams to control data and infrastructure without vendor lock-in. The included tools—from schema composition checks to distributed tracing and the Cosmo Router—cover the full lifecycle of federated GraphQL API management, making it a practical choice for teams scaling a unified graph.
