Amazon EventBridge
Event bus for event-driven architectures
Amazon EventBridge is a serverless event bus service that makes it easy to connect applications using data from your own apps, integrated SaaS apps, and AWS services.
Amazon SNS
Messaging service for notifications
Amazon SNS is a fully managed messaging service for both application-to-application (A2A) and application-to-person (A2P) communication.
Amazon SQS
Managed message queue service
Amazon SQS is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications.
AWS Step Functions
Workflow orchestration service
AWS Step Functions is a low-code visual workflow service that lets you coordinate multiple AWS services into serverless workflows.