# Node library
Nodes are the building blocks of a conversation. You can use nodes to ask users questions, present information, call external systems, and perform actions.
Each node is connected by transitions. Transitions represent how the conversation flows when a user responds in the chat or makes a selection.
The Node Library contains the following node categories:
# Add a node to a flow
Complete the following steps to add a node to a flow:
1
Select a flow to open the conversation flow builder.
2
Click Open nodes drawer.
Open the nodes drawer
3
Drag and drop a node from the Node Library onto the flow.
Add node to flow
4
Hover over the tip of the arrow to drag and reconnect it to a different node.
Edit transitions between nodes
Last updated: 6/23/2025, 2:33:20 PM