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Keel vs WunderGraph Cosmo
Short answer: Pick Keel if you want code-first backend with built-in internal tools; pick WunderGraph Cosmo if you want open-source GraphQL federation platform. WunderGraph Cosmo has a free plan, paid from $499/month.
KeelThe backend for your apps, the tools for your teams
WunderGraph Cosmo A drop-in replacement for Apollo GraphOSWhich to pick
Pick Keel if you want…
- Code-first backend with built-in internal tools
- Backend tooling
- Integrations with VSCode extension (on Keel's list, not WunderGraph Cosmo's)
Pick WunderGraph Cosmo if you want…
- Open-source GraphQL federation platform
- Integrations with Go, Kafka or NATS (on WunderGraph Cosmo's list, not Keel's)
Side by side
- What it is
- Keel:Keel provides a code-first backend platform with instant internal tools, schema-driven APIs, and full-stack operations features.
- WunderGraph Cosmo:WunderGraph Cosmo is an open-source GraphQL federation platform for building, managing and scaling federated APIs.
- Best for
- Keel:Code-first backend with built-in internal tools
- WunderGraph Cosmo:Open-source GraphQL federation platform
- Who it’s for
- Keel:Engineers building operational backends and internal tools for fast-moving teams
- WunderGraph Cosmo:Platform and engineering teams needing self-hosted or managed GraphQL federation.
- Pricing
- Keel:Contact sales
- WunderGraph Cosmo:Freemium
- Starting price
- Keel:—
- WunderGraph Cosmo:$499/month (Launch)
- Plans
- Keel:—
- WunderGraph Cosmo:Launch $499 per month · Scale $3499 per month
- Open source
- Keel:Yes
- WunderGraph Cosmo:Yes
- Works with
- Keel:VSCode extension
- WunderGraph Cosmo:Go, Kafka, NATS, Redis, Prometheus, OpenTelemetry, Datadog
Keel features
- Schema-driven data model. Define data models, actions, and permissions in a clear schema that generates APIs and internal tools.
- TypeScript extensions. Write custom functions, jobs, and durable functions in TypeScript with full type safety.
- Version-controlled environments. Create multiple environments, branch deployments, and PR previews with audit trails.
- Built-in testing framework. Generate type-safe end-to-end tests from the schema for actions, functions, and jobs.
- Instant internal tools. Automatically generate UI tools for ops teams that stay in sync with schema changes.
- Serverless infrastructure. Managed, multi-region PostgreSQL and serverless runtime scales from first to millionth user.
WunderGraph Cosmo features
- Self-hosted Router. Run the Cosmo router on any infrastructure with full control.
- Event-Driven Federated Subscriptions. Combine GraphQL federation with Kafka, NATS or Redis for scalable subscriptions.
- OpenTelemetry & Prometheus Support. Integrates with existing observability stacks for metrics and tracing.
- Custom Router Modules. Extend the router with Go modules or gRPC plugins.
- Schema Registry & Studio. Manage schemas, query plans and analytics via a unified UI.
- Enterprise-grade Security. SOC 2 compliance, OIDC, SCIM and role-based access control on Cosmo Cloud.
Keel vs WunderGraph Cosmo FAQ
What is the difference between Keel and WunderGraph Cosmo?+
Keel offers backend services but does not provide a full federation router and studio like Cosmo.
Should I use Keel or WunderGraph Cosmo?+
Pick Keel if you want code-first backend with built-in internal tools, backend tooling or integrations with VSCode extension (on Keel's list, not WunderGraph Cosmo's). Pick WunderGraph Cosmo if you want open-source GraphQL federation platform or integrations with Go, Kafka or NATS (on WunderGraph Cosmo's list, not Keel's).
Is Keel or WunderGraph Cosmo free?+
WunderGraph Cosmo has a free plan; paid plans start at $499/month (Launch).
Is Keel or WunderGraph Cosmo open source?+
Yes, both are open source: Keel (teamkeel/keel on GitHub) and WunderGraph Cosmo.
Do Keel and WunderGraph Cosmo integrate with the same tools?+
Their integration lists don't overlap: Keel lists VSCode extension; WunderGraph Cosmo lists Go, Kafka, NATS, Redis and 3 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.