Different ways to run a Workflow v1

A v1 Runtime Workflow can start through the following interfaces.

Entry point	Use it when
Designer run	A builder is testing the current visual design.
Run Now	A person starts an on-demand Workflow through its Variable Bar interface.
Always On	A Trigger Node waits continuously for events or scheduled work.
HTTP Binding	An application, webhook, or service invokes a published route.
MCP tool	An authorized MCP client invokes an eligible published Workflow.
Sub-Workflow	Another Workflow calls the operation through the Workflow Node.

The Start Node and its connected Execution Flow Outputs determine how enabled launch modes enter the design.

See Run Now, Always On, API, and How to use Sub-Workflows.