The Kurrent Ecosystem

The Kurrent ecosystem is made up of the core database (which can run standalone or in the cloud), client SDKs and APIs, connectors, and management user interfaces:

KurrentDB

At the heart of Kurrent’s platform is KurrentDB, the core database engine (formerly EventStoreDB). KurrentDB is an immutable, append-only event store designed for event-sourced architectures. Data is organized into streams – essentially sequences of events – and the engine supports billions of independent streams while maintaining consistent ordering of events within each stream. Every write appends a new event to a stream (no in-place updates), preserving a durable history of changes. An integrated indexing mechanism allows fast retrieval of events by stream or globally, and the database can handle real-time event ingestion at scale without compromising on write/read performance.

Kurrent Cloud

Kurrent Cloud is the fully managed cloud offering of the Kurrent platform, aimed at eliminating the operational overhead of running KurrentDB clusters. It allows one-click (or API-driven) deployment of managed KurrentDB clusters on all major cloud providers – Amazon Web Services, Microsoft Azure, and Google Cloud Platform. With Kurrent Cloud, developers can spin up a KurrentDB cluster in minutes through a web console, without having to manually provision VMs or containers. The service supports multiple deployment modes: shared infrastructure and dedicated infrastructure.

Kurrent Clients and APIs

Kurrent offers a range of client SDKs for multiple languages and environments, including .NET (C#), Java (and other JVM languages), JavaScript/TypeScript (Node.js), Python, Rust, and Go.

KurrentDB also exposes a straightforward HTTP API. This allows any application that can speak HTTP to read and write events or perform administrative operations over REST, enabling integration from scripts or systems where a custom SDK might not be available.

Connectors

Connectors make it easy to integrate data from KurrentDB into other systems. Each connector runs on the server-side and uses a catch-up subscription to receive events, filter or transform them, and push them to an external system.

Projections

Projections in KurrentDB let you continuously query event streams to detect patterns over time—ideal for scenarios like tracking sequences of medical events or analyzing user behavior in real time.

Management Interfaces

Kurrent provides both command line and graphical user interfaces for managing your KurrentDB installation.