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Akka

Akka is a powerful platform that simplifies building and operating highly responsive, resilient, and scalable services.

The platform consists of

  • the Akka SDK for straightforward, rapid development with AI assist and automatic clustering. Services built with the Akka SDK are automatically clustered and can be deployed on any infrastructure.
  • and Akka Automated Operations, a managed solution that handles everything for Akka SDK services from auto-elasticity to multi-region high availability running safely within your VPC.

The Akka SDK and Akka Automated Operations are built upon the foundational Akka libraries, providing the building blocks for distributed systems.

Akka has been downloaded more than 1 billion times and has powered thousands of systems for over 15 years. Akka enables millions of concurrent users, terabyte stream processing, low-latency read/write data access, 99.9999% availability, and multi-region high availability and disaster recovery (HA/DR).

Akka is used to build agentic AI, AI inference, transactional, analytical, digital twin, IOT, and edge-to-cloud systems. It is simple to learn and operate. Akka creates production-ready systems without requiring prior knowledge of events, threading, or distributed systems.

Akka libraries

To get started, see the Akka libraries documentation.

Akka (core)

Akka HTTP

Akka gRPC

Alpakka Kafka

Alpakka

Akka Persistence Cassandra

Akka Persistence JDBC

Akka Persistence R2DBC

Akka Projections

Akka Management

Akka Diagnostics

Akka Insights

Before contributing, please read the contributing guidelines and notice our Code of Conduct.

If you need help, please check support references.

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  1. akka-sdk akka-sdk Public

    The Akka SDK offer a set of components that let you build durable, responsive, real-time services.

    Java 21 11

  2. akka-core akka-core Public

    A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

    Scala 13.3k 3.6k

  3. akka-http akka-http Public

    The Streaming-first HTTP server/module of Akka

    Scala 1.3k 590

  4. akka-projection akka-projection Public

    Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication.

    Scala 105 36

  5. alpakka alpakka Public

    Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

    Scala 1.3k 631

  6. alpakka-kafka alpakka-kafka Public

    Alpakka Kafka connector - Alpakka is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Akka.

    Scala 1.4k 376

Repositories

Showing 10 of 52 repositories
  • akka-sdk Public

    The Akka SDK offer a set of components that let you build durable, responsive, real-time services.

    akka/akka-sdk’s past year of commit activity
    Java 21 11 31 8 Updated Feb 10, 2026
  • akka-core Public

    A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

    akka/akka-core’s past year of commit activity
    Scala 13,263 3,578 875 (200 issues need help) 26 Updated Feb 10, 2026
  • akka-management Public

    Akka Management is a suite of tools for operating Akka Clusters.

    akka/akka-management’s past year of commit activity
    Scala 255 158 110 (34 issues need help) 4 Updated Feb 10, 2026
  • homebrew-brew Public

    Homebrew tap for installation of Akka command line tools

    akka/homebrew-brew’s past year of commit activity
    Ruby 0 Apache-2.0 0 0 0 Updated Feb 6, 2026
  • akka-dependencies Public

    Maven "bill of materials" (BOM) for Akka releases

    akka/akka-dependencies’s past year of commit activity
    Scala 5 3 0 0 Updated Feb 6, 2026
  • akka-projection Public

    Akka Projections is intended for building systems with the CQRS pattern, and facilitate in event-based service-to-service communication.

    akka/akka-projection’s past year of commit activity
    Scala 105 36 77 (2 issues need help) 5 Updated Feb 6, 2026
  • akka/akka-persistence-r2dbc’s past year of commit activity
    Scala 24 18 37 2 Updated Feb 6, 2026
  • akka-persistence-jdbc Public

    Asynchronously writes journal and snapshot entries to configured JDBC databases so that Akka Actors can recover state

    akka/akka-persistence-jdbc’s past year of commit activity
    Scala 309 137 38 (2 issues need help) 4 Updated Jan 28, 2026
  • akka-persistence-cassandra Public

    A replicated Akka Persistence journal backed by Apache Cassandra

    akka/akka-persistence-cassandra’s past year of commit activity
    Scala 327 133 56 (10 issues need help) 6 Updated Jan 27, 2026
  • akka-quickstart-scala.g8 Public

    A minimal seed template for an Akka with Scala build

    akka/akka-quickstart-scala.g8’s past year of commit activity
    Scala 54 37 6 0 Updated Jan 22, 2026