Summarize sales calls into GoHighLevel notes with Deepgram, Gemini, and Sheets

by iamvaar ✓ · 19 views · created 2026-06-13 · CRM, AI Summarization

What this workflow does

This AI workflow has 12 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Google Gemini Chat Model, HighLevel and Google Sheets. It also calls api.deepgram.com over HTTP.

How it runs

Trigger: When an HTTP POST request hits its webhook URL.

1. Check Mobile Number (If): checks a condition and branches into true / false
2. Fetch GHL Contacts (HighLevel): get many
3. Check Contact Existence (If): checks a condition and branches into true / false
4. Extract Binary Data (Code): runs custom JavaScript code
5. Transcribe Audio via Deepgram (HTTP Request): calls api.deepgram.com (POST)
6. Fetch User Notes (HTTP Request): calls an HTTP API
7. Generate LLM Response (Basic LLM Chain): sends a prompt to an LLM, with model: Gemini Chat Model
8. Create a Note about call summary (HTTP Request): calls an HTTP API (POST)
9. Append Logs to Sheets (Google Sheets): append or update
10. Respond to Webhook: sends the response back to the webhook caller

Services it uses

Google Gemini Chat ModelHighLevelGoogle Sheets

HTTP calls to: api.deepgram.com

Before you upgrade to n8n 3.0

Nodes used (9)

• Webhookn8n-nodes-base.webhook
• Respond to Webhookn8n-nodes-base.respondToWebhook
• Basic LLM Chain@n8n/n8n-nodes-langchain.chainLlm
• Google Gemini Chat Model@n8n/n8n-nodes-langchain.lmChatGoogleGemini
• HighLeveln8n-nodes-base.highLevel
• HTTP Requestn8n-nodes-base.httpRequest
• Ifn8n-nodes-base.if
• Coden8n-nodes-base.code
• Google Sheetsn8n-nodes-base.googleSheets

From the author

Quick overview Youtube Video Explanation: https://youtu.be/GNAplBWdCDE?si=fX31M-nu3sP2b276 This workflow receives an authenticated webhook with an audio file and mobile number, looks up the matching contact and recent notes in GoHighLevel, transcribes the…

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