LittleHorse Kernel
Open-source composer for microservices, AI agents, integrations, and workflows.
Talk to an Expert
Get in touch with us to discuss how the LittleHorse Kernel can solve your composition problems.
Try Out LittleHorse
Run your first workflows with the LittleHorse Kernel in under 10 minutes.
Read the Docs
The LittleHorse Kernel is open-source, so you can take a look on GitHub or check out our docs
View on GitHub
Explore the LittleHorse Kernel source code, contribute, and see how it's built.
How It Works
Business-as-Code
// Reserving inventoryvar success = wf.execute("reserve-inventory", itemId);// Processing paymentwf.execute("charge-credit-card", customer, price);// Shipping item to customerwf.execute("ship-item", itemId, customer);
The Kernel In Action
The LittleHorse Kernel is open-source and valuable on its own. Start with the Kernel and add other Saddle components as needed.
Invovate In Place
0. Register Task Workers
Register task workers that execute the individual tasks defined in your workflow.
1. Register a `WfSpec`
Define your workflow specification using the LittleHorse SDK in your preferred language.
2. Run your durable workflow
Start workflow runs and let LittleHorse handle execution, retries, and state management.
Workflow re-imagined for engineers
The LittleHorse Kernel is an open-source workflow engine designed with developers in mind: easy to adopt, in a language of your choice, and without rewriting existing code.
Define your workflows in code, and let LittleHorse take care of the rest.
Optimized for microservices
Debugging microservices is a nightmare. LittleHorse makes it easy by providing a single pane of glass to monitor, debug, and compose your services.
Every step in your workflow is tracked, and you can see the state of your workflow at any time, while retaining the agility and loose coupling promised by microservices.
Secure and reliable at any scale
Your apps are mission-critical, and you cannot afford downtime or security breaches. That's why we built fault-tolerance OAuth, TLS, encryption at rest, and sensitive data masking into LittleHorse from day 1.
On top of that, we engineered the LittleHorse Kernel to be horizontally scalable and highly-available so that it can run your most demanding workloads.
Available on-prem or in the cloud
LittleHorse is available delivered on-premise through a Kubernetes operator or via a managed SaaS service in the cloud.
Get Started. It's Easy and Free.
Ready to get started with the LittleHorse Kernel?