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ActionSynthesiaUpdated June 2026

Which voices does Synthesia support?

Short answer: You can list voices in Synthesia by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Synthesia List Voices action to a workflow, map its 0 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

List Voices in Synthesia — start free All 6 Synthesia actions
List Voices in Synthesia — start free
Sample request
{}
Returns
{
  "voices": [
    {
      "id": "v_abc",
      "gender": "female",
      "locale": "en-US",
      "displayName": "Anna (US)"
    }
  ]
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for List Voices.

Any of these apps can fire this action as part of a workflow.

Gmail → Synthesia
1 Gmail triggers
Slack → Synthesia
13 Slack triggers
Google Sheets → Synthesia
2 Google Sheets triggers
HubSpot → Synthesia
18 HubSpot triggers
FAQ

Questions about List Voices.

What does the List Voices action do in Synthesia?
Returns the voices available for Synthesia avatars, grouped by locale and gender. Useful for letting end users pick the language and tone of the generated video.
What inputs does List Voices require?
List Voices has no required inputs. Sensible defaults are applied if you leave fields blank.
Can I use dynamic inputs from earlier workflow nodes?
Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.
What happens if Synthesia returns an error?
The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.
Does List Voices support batch operations?
Yes. Run List Voices inside a Loop node to process arrays. TinyCommand handles Synthesia's rate limits automatically so you don't have to throttle manually.
More actions

Other Synthesia actions.

Action
Create AI Video
Renders a Synthesia video of an AI avatar reading your script in the chosen voice and background. Generation is asynchronous, so pair this with Get Video to poll until the download URL is ready.
Action
Create Video from Template
Fills in a Synthesia template's variables (text, images, links) and renders the personalized video. Perfect for 1:1 outbound, onboarding, or birthday-style campaigns at scale.
Action
Get Video
Polls a Synthesia video by ID and returns its current status plus, once complete, a downloadable URL. Standard pattern is to loop this every 15 to 30 seconds after Create Video.
Action
List Avatars
Returns the avatars available in your Synthesia workspace, including stock avatars and any custom personal avatars. Use it to render an avatar picker before generating.
Action
List Templates
Lists the Synthesia video templates available in your workspace along with their variable schemas. Combine with Create Video from Template to render personalized variants.
List Voices in Synthesia — start free