Transcribe audio to text via webhook with Smallest.ai speech-to-text
UnknownUnknown. This template uses community nodes we can't verify statically. Uses community nodes that can't be verified statically (unverified community packages are off by default in 3.0). Static check, last run 2026-10-19.
What this workflow does
This workflow has 8 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Google Sheets and Smallestai (community).
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Check if request has audio (If): checks a condition and branches into true / false
- Transcribe audio (Smallestai): work with stt
- Respond Error if request has no audio (Respond to Webhook): sends the response back to the webhook caller
- Shape Response (Edit Fields (Set)): sets 1 field: transcript
- Respond Error if STT failed (Respond to Webhook): sends the response back to the webhook caller
- Success (Respond to Webhook): sends the response back to the webhook caller
- Log response in sheet (Google Sheets): append
Services it uses
Before you upgrade to n8n 3.0
We can't fully verify this one: it relies on 1 community package, and n8n 3.0 turns unverified community packages off by default (N8N_UNVERIFIED_PACKAGES_ENABLED=false).
- Check that n8n-nodes-smallestai is verified or supports 3.0 (used in Transcribe audio).
Nodes used (6)
- Webhook
n8n-nodes-base.webhook - Smallestai
n8n-nodes-smallestai.smallestai - Edit Fields (Set)
n8n-nodes-base.set - If
n8n-nodes-base.if - Respond to Webhook
n8n-nodes-base.respondToWebhook - Google Sheets
n8n-nodes-base.googleSheets
From the author
Quick Overview This workflow exposes a POST webhook endpoint that accepts a binary audio file, transcribes it to text using Smallest.ai speech-to-text, and returns the transcript in the same synchronous HTTP response. How it works 1. Receives an HTTP POST…