VAPI•5d ago

How to store tool call response as a variable in dashboard

@Vapi @Duckie
I’m working with a tool call named

checkAvailability

checkAvailability

checkAvailability

checkAvailability that successfully returns available slots as an array of objects.
What I’d like to do is store this tool response in a variable within the dashboard, so that I can later reference it in my flow using

{{availableSlots}}

{{availableSlots}}

{{availableSlots}}

{{availableSlots}}.

Could you please guide me on:

How to capture the tool’s response and assign it to a variable in the dashboard?

Vapi Support BotAPP•12/12/25, 11:04 AM

To capture your tool's response and store it as a variable in the dashboard, use the Extract Variables feature in your workflow after the

checkAvailability

checkAvailability

tool node. Configure the extraction prompt to assign the tool's output to a variable, for example:

Variable Name: availableSlots
Type: Array
Extraction Prompt: Extract the available slots from the tool response.

Variable Name: availableSlots
Type: Array
Extraction Prompt: Extract the available slots from the tool response.

You can then reference this variable in later nodes using

{{availableSlots}}

{{availableSlots}}

.
For more details, see the workflows documentation on variable extraction and usage.

Source:

Workflows overview

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