How We Help You Succeed
- ✓Consulting & Architecture
Expert guidance on Event Sourcing, CQRS, and asynchronous messaging to help you build resilient, scalable systems.
- ✓Support Plans
An ongoing relationship with the team behind the Critter Stack - questions, advice, fixes, and event enhancements when you need them.
- ✓Workshops & Training
Interactive, customized 1-2 day online workshops on the Critter Stack, event-driven architectures, and automated testing.
- ✓Battle-Hardened Tools
Proven, well-documented .NET libraries optimized for low-friction development, testability, and AI-assisted workflows.
The Critter Stack at a Glance
One family of .NET tools for event sourcing, document storage, and messaging - on the database you already run.
Latest from the Blog
Release notes, deep dives, and what we learned building the Critter Stack - several posts a week.
4th November 2026Recurring Jobs with Wolverine and CritterWatchEvery system has work that runs on a schedule. Wolverine turns a cron job into an ordinary message, so it gets the outbox, retries, dead letters, OpenTelemetry tracing and once-per-cluster execution for free, and CritterWatch 1.2 lets you see, pause, resume and trigger every schedule across your fleet. Plus how Wolverine treats a nightly job differently from one that fires every few seconds, and why.WolverineCritterWatch
3rd November 2026Critter Stack AI Skills 1.18: Caught Up With CritterWatch 1.2AI Skills 1.18 brings every CritterWatch skill up to the 1.2 MCP tools, checked tool by tool against the source: a new sagas skill, the get_command_outcome tool, dead letters ranged by failure time, event queries over bodies and metadata, and six corrections to advice that had gone wrong, including the Prometheus series names every Grafana example used.MartenWolverineCritterWatch
3rd November 2026CritterWatch 1.2: See Inside Your Event Store, Documents, Sagas and SchedulesCritterWatch 1.2 turns the console into a real explorer for what your Critter Stack services hold: an overview of every event store, a Step Through tab for projections, a Document Store Explorer that checks your documents still deserialize, saga instances with their state and pending timeouts, a Schedule Explorer that tells you what a schedule is actually doing, and an Event Model you can drill into.MartenWolverineCritterWatchWhat Our Users Are Saying
Critter Stack libraries are some of the most mature libraries I've ever used and their feature set and integration is perfectly tailored for real world problems to solve.
- Alexander Zeitler, PDMLab
The ease of implementing event driven and nosql support is what I value the most. Not having the struggle of making different frameworks play well together to get the same functionality is both time, and therefore, cost saving.
- Daniel Toivonen
I love the simplicity you get in the end. There is a learning curve as you need to unlearn things and change your way of thinking, but in the end you will get very low ceremony code that is easy to reason about. You can read the business intention. The [AggregateHandler] as both a Decider implementation and an example of A-Frame is just beautiful!
- Major Martin, MADIS Consulting Kft
I started small - a bit of Alba for testing, a little Marten for documents, Wolverine as a mediator, and as the complexity of my applications have grown, I've only leaned in more on the Critter Stack. The developer experience of these tools is amongst the best in the industry. My code is better than it has ever been - clearer, easier to reason about, and with the excellent support for event sourcing, I'm amazed how often my customers sheepishly ask for something they anticipate will be challenging, and I actually have to reassure them it won't be - nice change! I never feel backed into a corner with these tools. My code grows and adapts in pace with the businesses I support.
- Jeff Gonzalez, Owner, Hypertheory