wundergraph/cosmo

Health v2 · maintenance only

Adoption not part of the score

1259 stars · 253 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

WunderGraph Cosmo is an open-source full lifecycle API management platform for federated GraphQL, including a schema registry, composition checks, a high-performance router, analytics, and distributed tracing. It serves as an Apache-2.0 licensed alternative to Apollo Studio/GraphOS and can run locally, on-premises, or as a managed cloud service.

Use cases

• manage federated graphql graphs at scale
• self-host an alternative to apollo studio or graphos
• run composition checks before merging subgraph schema changes
• route graphql requests across multiple subgraphs
• get analytics and distributed tracing for a federated graph
• migrate an existing apollo federation setup to an open-source platform
• manage a schema registry for multiple teams via a cli

When to choose

• you need federated GraphQL (v1 or v2) with schema registry, routing, and observability in one platform
• you want to self-host or run on-prem without vendor lock-in under Apache-2.0
• you are looking for an open-source Apollo Studio/GraphOS alternative
• you support both monolithic and federated GraphQL architectures

When to avoid

• you only need a simple single-schema GraphQL server without federation
• you rely on Apollo-specific proprietary features not replicated by Cosmo
• you want a fully managed service and prefer not to operate any infrastructure (though Cosmo Cloud exists)

Facets

service · maturity active

graphql api-gateway routing analytics tracing monitoring cli self-hosted apis web-development backend developer-tools microservices self-hosted windows self-hosted cloud cli graphql-federation schema-registry apollo-alternative graphql-router api-management composition-checks federation-v2 linux macos docker nodejs

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markdown · JSON · MCP: product_card(name="wundergraph/cosmo")