Amazon MQ
Amazon MQ is a managed message broker service provided by AWS. It allows developers to run popular open-source message brokers in the cloud without managing the underlying infrastructure. This service is primarily used for decoupling application components, enabling reliable communication between microservices and distributed systems through standard messaging protocols.
You should choose this service if you need a fully managed environment for legacy or open-source message brokers. Be aware of the pricing limitation: while the model is listed as free, the free tier is strictly limited to the first 12 months, after which standard usage charges will apply.