API Architecture
Playground
A hands-on system showcasing REST, real-time, async, and contract-based APIs. Built to demonstrate when—and why—different communication models belong in real systems.
Built by Robby Rolison
Services Online
9 / 9
Operational
Protocols Supported
8+
Active
System Model
Hybrid
Scalable
System Overview
Each service represents a distinct communication model used in modern backend systems—chosen intentionally based on latency, coupling, and data flow requirements.
API Protocol
REST API
HTTP · JSON · Stateless
API Protocol
WebSocket
Bidirectional · Real-time
API Protocol
SSE
Server → Client Streams
API Protocol
GraphQL
Flexible Queries · Typed
API Protocol
RPC
Procedure Calls · Low Overhead
API Protocol
Webhooks
Event Push · External Triggers
API Protocol
SOAP
XML · Contract-Driven
API Protocol
gRPC
Protobuf · High Performance
API Protocol
Event Bus
Async · Event-Driven
Live Request Playground
Send a real request into the system and observe how different API styles respond. No mocks. No shortcuts.