Apache Pulsar is the named product: an Apache Software Foundation project, documented on the ASF site 1, though its source page only describes the foundation and Apache Fluss rather than Pulsar's features, and no Pulsar-specific action is indexed. Alternatives that do the same job of distributed, persistent messaging and streaming are Confluent 3, NATS 4, and RabbitMQ 5.

1. 1

   Apache Pulsarapache.orgverified and signed

   Apache Software Foundation project page that hosts Apache Pulsar, a distributed messaging and streaming system; its fetched page does not describe Pulsar's features or list an official MCP, API, SDK or CLI door.

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   official:API · Airflow API (Stable)API · Airflow API (Stable)+22 community tools built for it

   for agents: orchestration · slack · pipelines

2. 2

   Confluent Data Streaming Platformconfluent.ioverified and signed

   Managed data streaming platform built on Apache Kafka and Apache Flink for streaming, connecting and processing events in real time 3.

   WebsiteDocsPricingGet started

   +1 community tools built for it

   for agents: Confluent · Kafka · apache

3. 3

   NATSnats.iowebsite read, tools not yet checked

   Open-source high-performance messaging system supporting pub/sub, request/reply and persistent streaming via JetStream 4.

   WebsiteDocs

   +4 community tools built for it

4. 4

   RabbitMQrabbitmq.comverified and signed

   Open-source messaging and streaming broker for queuing and routing messages between applications 5, with a sendMessageToQueue action 15.

   WebsiteDocs

   +10 community tools built for it

   for agents: sendMessageToExchange · sendMessageToQueue · amqp