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Apache Pulsar

Open-source distributed messaging and streaming platform built for the cloud. Top-10 Apache Software Foundation project (740+ contributors, current version 4.2). Multi-tenant by design (tenants, namespaces, topics, subscriptions), supports both queue and pub/sub messaging models, layered architecture separates stateless brokers from BookKeeper storage. Includes Pulsar Functions (serverless processing) and Pulsar IO (connectors).

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API entry from apis.yml

name: Apache Pulsar
description: Open-source distributed messaging and streaming platform built for the cloud. Top-10 Apache
  Software Foundation project (740+ contributors, current version 4.2). Multi-tenant by design (tenants,
  namespaces, topics, subscriptions), supports both queue and pub/sub messaging models, layered architecture
  separates stateless brokers from BookKeeper storage. Includes Pulsar Functions (serverless processing)
  and Pulsar IO (connectors).
humanURL: https://pulsar.apache.org
tags:
- Brokers
- Streaming
- Open-Source
- Apache
tags_raw:
- Broker
- Streaming
- Open Source
- Apache
properties:
- type: Portal
  url: https://pulsar.apache.org
- type: Documentation
  url: https://pulsar.apache.org/docs
- type: GitHubRepository
  url: https://github.com/apache/pulsar