What is the name of the mechanism for asynchronous interaction between services?

The mechanism of asynchronous interaction between services is usually called a message queue or event-driven architecture. In such systems, services exchange messages through message brokers (e.g., RabbitMQ, Kafka), which allows them to operate independently and not block each other. This increases the scalability and resilience of the system, as the sender does not wait for an immediate response, and the receiver processes messages as it can.