ActionSynthesiaUpdated September 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.

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 run history shows the failed step with its input and the error message Synthesia returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does List Voices support batch operations?

Run List Voices inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Synthesia's rate limits.

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