Is this a decision that holds?
What others have built with it, how it keeps an audit trail and personal data compliant, how it is licensed and supported, and why it does not lock you in.
See what others have built
How teams have put events to work, told by the people who did it.
Audit and compliance by design
Every change is kept as it happened, and every event is chained to the one before, so the history can be audited – and personal data can still be handled as the GDPR demands.
This guide explains how to audit the integrity of events stored in EventSourcingDB. Using the audit endpoint, you can verify that the event chain has remained unchanged, ensuring tamper-proof compliance and reliable historical data integrity.
Verifying Store IntegrityThis guide explains how to verify the internal integrity of an EventSourcingDB instance. It covers how to trigger a full validation of stored events and indexes and how to interpret the results.
GDPR ComplianceThis guide explains how to assess and achieve GDPR compliance in event-sourced systems. It addresses the challenges of storing personal data in immutable event streams, outlines the implications for the right to erasure and other GDPR provisions, and offers practical recommendations for designing compliant systems.
Open standards, no lock-in
Events in the open CloudEvents format, models in the open ESDM specification, and a landscape of products from many makers.
This guide explains what CloudEvents are, why they matter for event-sourced systems, and how the specification helps standardize event data across systems. Understanding the CloudEvents model will help you work more effectively with the structure and semantics of stored events.
The ESDM SpecificationThe open language for event-sourced domain models, under the MIT license.
LandscapeThe products around Event Sourcing, CQRS, and Domain-Driven Design, from many makers.
MissionEvery system has a story, but most systems keep only its last page: what is true right now, not how it came to be. What gets lost are the answers to questions nobody has asked yet – why something happened, what was known at the time, and what can be learned from it.
Support and licensing
How EventSourcingDB is licensed, what it costs, and which support is available.
This guide explains the licensing model of EventSourcingDB and how it applies to different use cases. It outlines what is free to use, when a commercial license is required, and how the licensing mechanism works in practice.
Pricing of EventSourcingDBFree up to 25,000 events, and licensed per instance beyond.
Work with us
Training, consulting, and a second opinion on your architecture.