The Open-Source Solutionfor Federated GraphQLgRPCRESTKafka
The Open-Source Solution for FederatedGraphQLgRPCRESTKafka
for Federated GraphQLgRPCRESTKafka
GraphQLgRPCRESTKafka
Modern API platforms aren't just about endpoints — they're about alignment. As teams, tools, and protocols multiply, things drift. Cosmo unifies REST, GraphQL, gRPC, and Kafka under a single, trusted contract model.
What our customers have to say
Built for every use case
Modern APIs are multi-protocol.
Cosmo unifies them.
Unify API Infrastructure Across GraphQL, REST, gRPC, and Kafka
Fragmented contracts slow teams down. Cosmo unifies routing, schemas, and observability into one shared model.
Open source. Language-agnostic.
Ready for monoliths, microservices, and federated graphs.
Federation v1 and v2 compatible
Works with all existing GraphQL services. Any framework, any language.
Fast and Reliable Router
Built in Go with native support for Subscriptions, JWT, and observability.
Maximized compliance
Deploy fully on-prem or use our managed service to meet strict compliance needs.
Powerful CLI
Docs and schemas searchable by agents like Cursor — right from your terminal.
Packed with nothing short of everything
Features that enable teams to move fast without breaking things
View all featuresGain valuable insights into your GraphQL API
Metrics
Access real-time metrics for graphs and subgraphs such as requests, errors and latency. Dive into query complexities and response times for peak performance
Distributed Tracing
Instrument your graphs and subgraphs and track queries across multiple services, identify bottlenecks, and ensure consistent, high-quality performance
Schema Field Usage
Monitor client interactions and operations usage on your schema fields. Use insights to guide schema evolution and cater to user needs
Advanced Request Tracing
Get the execution plan for your queries with verbose information about how it is resolved as a JSON and find means to optimize them
We listen to what you and your team need
Enterprise grade tooling at your disposal
8x
better P99 latency and more requests per second than Apollo Router
Deliver raw performance with the Cosmo Router
Native High-Performance Query Execution Planner written in Go.
Dataloader 3.0, enabling ahead of time batch optimizations through its breadth-first execution strategy.
AST-JSON based result merging for maximum performance and minimal memory of the Resolver.
Single-Flight for Query Execution Planning and data-fetching to avoid duplicate work and reduce latency.
Cache Warmer to precompute and cache query plans to handle high throughput surges. See it in action at the Super Bowl.
P99 Latency
Lower is better
Requests Per Second
Higher is better
JWT with Field-level Auth
Authenticate incoming requests to your federated graphs down to the field level with support for multiple providers
DocsEDFSCosmo Exclusive
Event Driven Federated Subscriptions enables you to build highly scalable and resource-efficient graphs
Lambda SupportCosmo Exclusive
The first and only solution to officially support running a GraphQL Federation Gateway on AWS Lambda
Organization-wide Access Control
OIDC
Secure authentication and authorization protocol for seamless identity verification
RBAC
Granular access management for users within the organization with defined roles and permissions
API Keys
Create API keys to specific federated graphs or subgraphs for fine grained control
Audit Log
Understand activities performed by organization members directly or via API keys
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