The Evolution
From fragmented APIs to unified
GraphQL Federation
GraphQL as the foundation of a Microservices Architecture never felt right,
Cosmo Connect is here to fix that.
Schema Stitching
Gen 1: The Foundation
Backend for Frontend
Stitching schemas together
Requires manual stitching
Doesn't scale across teams
Apollo Federation
Gen 2: The Great Leap
Apollo Router / Cosmo Router
✓ Composable Schemas
GraphQLService 1
GraphQLService 2
GraphQLService 3
Forces GraphQL everywhere
Performance overhead of GraphQL
Cosmo Connect
Gen 3: The Evolution
Cosmo Router
Supports GraphQL, gRPC Services and Plugins
gRPCService 1
gRPCService 2
GraphQLService 3
Connect REST and legacy APIs through gRPC
Full support for GraphQL Federation
Stricly typed and high performance
Designed for LLM supported API Integration
Never write API glue code again.
Cosmo Connect is optimized for LLM code generation.
How it Works
From Schema to Service
Three simple steps. Cosmo Router handles the complexity. Your code stays simple.
01.
Design the Schema
Contract First
Declaratively define types, fields, and relationships
02.
Compile the schema into a gRPC Service proto definition
03.
Implement gRPC
Simple & Fast
Build your service with generated stubs in any language
Code Transformation
See how your GraphQL schema becomes gRPC service code
What Makes This Different
Beyond simplicity, this approach delivers real business value
The best part? Your frontend never knows the difference. It's still GraphQL all the way down, but your backend gets to be brilliantly simple.
Technology Choice
Why gRPC First?
Connect translates GraphQL to gRPC because it's the sweet spot for modern service communication.
Performance
Binary wire format; avoid double GraphQL parsing at the service level.
Coverage
Great tooling across Rust, Java, Python, C#, Go, and more.
Simplicity
Clean RPC handling, no GraphQL internals
Deployment Options
Choose Your Path
Modular Monolith, Microservices, or a mix of both. It's up to you.
Benefits
Built for Enterprise
Unlock the power of federated GraphQL without forcing your teams to rewrite everything
Use Cases
Works for Any Architecture
Whether you're building from scratch or modernizing legacy systems, Connect adapts to your architectural reality
Questions & Answers
Frequently Asked Questions
Everything you need to know about implementing gRPC services with GraphQL federation