About Maestro Flow

Note:

Maestro Flow is in Preview.

Maestro Flow is a visual canvas for building and deploying automations that connect APIs, AI agents, human approvals, document processing, and enterprise services. You design a Maestro Flow by placing nodes on a canvas and connecting them, then debug and publish it directly from Studio Web.

Flow processes run on the UiPath Maestro runtime alongside RPA workflows, API workflows, and Maestro BPMN processes. If you have used Maestro BPMN before, Flow is a different modeler built on the same runtime — designed for developers who prefer a visual, node-based experience over BPMN notation.

Node types

Nodes are organized into categories in the Add node panel:

Category	Description
Agent	UiPath agents and external AI agents
Agentic process	Invoke a Maestro BPMN process
API workflow	Call an API workflow
Connector	Integration Service connector actions
Control	Branching, looping, and flow control nodes
Flow	Invoke another Flow as a subflow
Human task	Human approvals and action apps
RPA workflow	Invoke an RPA workflow
Tool	Data transformation and scripting nodes
Document processing	Summarize or extract data from documents

Agent

When you select Agent, the following options appear:

Node	Description
Autonomous Agent	A UiPath AI agent that completes tasks autonomously
External AI agents	Third-party AI agents — includes Databricks Agent, Google Vertex, Microsoft Azure AI Foundry, and Snowflake Cortex

Control

When you select Control, the following options appear:

Node	Description
Mock	Placeholder node for prototyping — does nothing at runtime
Decision	Branches to a true or false path based on a JavaScript expression
Loop	Iterates over a collection, executing its body once per item
Merge	Joins parallel branches back into a single path
Switch	Routes to one of several branches based on an ordered list of conditions
Delay	Pauses execution for a specified duration or until a target date
Subflow	Groups a set of nodes into a reusable, self-contained unit
End	Marks the end of a workflow path
Terminate	Ends the flow immediately with a success or failure status

Human task

When you select Human task, the following options appear:

Node	Description
Quick Form	Fast inline approvals with inline debug support
Action App	A customized coded action app service

Tool

When you select Tool, the following options appear:

Node	Description
HTTP Request	Calls any REST API endpoint and returns the response
Script	Runs custom JavaScript code
Batch Transform	Adds AI-generated columns to a CSV
Transform	Reshapes and converts data
Filter	Filters data by conditions
Map	Renames and transforms fields
Group By	Groups data by a field with aggregation
Create queue item	Adds an item to an Orchestrator queue
Create and wait for queue item	Adds a queue item and waits for it to complete

Document processing

When you select Document processing, the following options appear:

Node	Description
Summarize	Creates a complex summary of a document
Extract	Extracts structured data using an IXP model deployed to a folder in your tenant

For the full node reference, tutorials, and observability guidance, refer to the Maestro Flow documentation.

Related links

• Choosing a Maestro modeler
• Your first Flow