Automatically store Retell transcripts in Google Sheets/Airtable/Notion from webhook
Automatically store Retell transcripts in Google Sheets/Airtable/Notion from webhook Overview This workflow stores the results of a Retell voice call (transcript, analysis, etc.) once it has ended and been analyzed. It listens for call_analyzed webhook events from Retell and stores the data in Airtable, Google Sheets, and Notion (choose based on your stack). Useful for anyone building Retell agents who want to keep a detailed history of analyzed calls in structured tools. Who is it for For builders of Retell's Voice Agents who want to store call history and essential analytic data. Prerequisites Have a Retell AI Account Create a Retell agent Associate a phone number with your Retell agent Set up one of the following: An Airtable base and table (example: "Transcripts") A Google Sheet with a “Transcripts” tab A Notion database with columns to match the transcript fields Templates: Airtable Google Sheets Notion How it works Receives a webhook POST request from Retell when a call has been analyzed. Filters out any event that is not call_analyzed (Retell sends webhooks for call_started, call_ended and call_analyzed) Extracts useful fields like: Call ID, start/end time, duration, total cost Transcript, summary, sentiment Stores this data in your preferred tool: Airtable Google Sheets Notion How to use it Copy the webhook URL (e.g., https://your-instance.app.n8n.cloud/webhook/poc-retell-analysis) and paste it in your Retell agent under "Webhook settings" then "Agent Level Webhook URL". Make sure your Airtable, Google Sheet, or Notion databases are correctly configured to receive the fields. After each call, once Retell finishes the analysis, this workflow will automatically log the results. Extension If you use any "Post-Call Analysis" fields, you can add columns to your Airtable, Google Sheet, or Notion database. Then fetch the data from the call.call_analysis.custom_analysis_data object. Additional Notes Phone numbers are extracted depending on the call direction (from_number or to_number). Cost is converted from cents to dollars before saving. Dates are converted from timestamps to local ISO strings. You can remove any of the outputs (Airtable, Google Sheets, Notion) if you're only using one. 👉 Reach out to us if you're interested in analysing your Retell Agent conversations. An n8n automation workflow template by Agent Studio.
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