When a new appointment is scheduled in Appointlet, list voices in Hume AI
Each time a meeting is scheduled in Appointlet, this workflow asks Hume AI for its list of voices. It only reads that list; add a step if you want to use it.
Appointlet
Hume AI2 steps Setup ~5 min Used on 3.5k sites Free to import
What this workflow does
This is a small starting point rather than a finished automation. It connects an Appointlet booking to your Hume AI account and fetches the voices available there, which is useful while you plan spoken confirmations or reminders for the people who book with you.
The Appointlet trigger is Meeting Scheduled, so every new meeting booked through Appointlet starts one run and carries the booking data with it. The Hume AI step then runs List Voices, which retrieves the voices from your Hume AI account.
List Voices only reads. It does not create audio, send anything to the person who booked, or change your Hume AI account, and no later step uses the list it returns. Task History shows the list for each run. To turn the booking into something spoken, add Hume AI's Text to Speech (File) action after it, check with a test run how it uses your voices, and add a step that delivers the result.
Planning spoken booking confirmations
You want each Appointlet booking to produce an audio confirmation later. Run this first to see which Hume AI voices your account holds.
Checking your Hume AI connection on real bookings
Before building a longer workflow, confirm that Appointlet bookings start runs and that your Hume AI account answers, using Task History.
Base for a booking-to-audio workflow
Import this, then add Text to Speech (File) and a delivery step, so the Appointlet trigger and Hume AI connection are already set up.
How this workflow runs
What happens at each step once the workflow is on, and what you need before you import it.
Appointlet Meeting ScheduledStarts a run whenever a meeting is scheduled through your Appointlet account. The booking data is available for any steps you add later.
- Hume AI List Voices
Retrieves the voices available in your Hume AI account. This step reads only; it does not make audio or send anything. You link Hume AI to FlowMattic when you set this step up.
What you need
- FlowMatticCore
- Appointlet AccountAccount
- Hume AI AccountAccount
After importing, map your own data. To keep the template universal, not every step is pre-filled. Open each step in the builder and connect your accounts and fields (channels, lists, sheets, recipients) before you switch the workflow on.
Make it yours
Changes worth making after you import it.
- Add Hume AI's Text to Speech (File) after List Voices and map booking details into the text, so each scheduled meeting produces a spoken message.
- Once you know which voices your account holds, you can remove List Voices from the workflow. It does not need to run on every booking.
- Appointlet also offers Meeting Rescheduled and Meeting Cancelled triggers. Build separate workflows on them if you want those events handled too.
Questions about this workflow
Does this Appointlet workflow create any audio?
No. Hume AI's List Voices only returns the voices in your account. Add the Text to Speech (File) action if you want audio made from each booking.
Will the person who booked in Appointlet receive anything?
No. Nothing is sent to the attendee. The workflow fetches the Hume AI voice list and stops.
Does Hume AI List Voices change my account?
No. It reads the voices that exist and returns them to the workflow. Your voices and settings stay as they are.
Where do I see the voices Hume AI returns?
Open the run in Task History after a test booking. The List Voices step shows the response, which you can map into any step you add after it.
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Import this workflow into your WordPress site
Download the JSON, import it from the Workflows screen and connect your accounts. Every run stays on your server, with no per-task fees.
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