Trusted by platform teams managing complex API ecosystems
Cosmo: Open-Source
GraphQL Federation Solution
Unify distributed APIs into one federated graph. Platform teams get observability and control. Service teams ship independently.
Real time subscriptions without new infrastructure
Cosmo Streams turns existing event streams into GraphQL subscriptions by handling authorization, filtering, and fan out in the Cosmo Router, keeping subgraphs stateless and avoiding a separate service.
Extend the router with TypeScript
With TypeScript plugin support in Cosmo Connect, you can extend the Cosmo Router using TypeScript and run custom logic directly inside the router, without deploying separate services.
Enforce custom schema rules before deploy
With Subgraph Check Extensions, you can run your own validation logic as part of Cosmo's subgraph checks, enforcing custom schema rules before changes are deployed.