Qualify and manage voice sales calls with Claude, GPT-4o, Gemini, and GoHighLevel β€” n8n Workflow

High complexityπŸ”— Webhook49 nodes✨ AIby Kumar SmartFlow Craft

Overview

⏺ πŸš€ How it works

Nodes used

Google SheetsHTTP RequestSupabaseHighLevelCodeAI AgentAnthropic Chat ModelOpenAI Chat ModelStructured Output ParserGoogle Gemini Chat Model

Workflow Preview

πŸš€ Voice AI + GHL Sales Agent β€” Setup Guide
STEP 1 β€” Credentials
- Add `HighLevel OAuth2` credential (OAuth2 flow via GH
- Add `Anthropic` API key credential
- Add `OpenAI` AP
πŸ—„οΈ Supabase Table Schema
```sql
CREATE TABLE voice_call_logs (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
call_id TEXT NOT NULL,
phone_number TEXT,
πŸ“Š Google Sheets Columns
Sheet name: Voice Call Log
Create these columns (Row 1 headers):
1. Call ID
2. Date
3. Phone Number
πŸ”‘ HighLevel Placeholder IDs
| Placeholder | Where to find |
|---|---|
| `YOUR_HL_CRED_ID` | n8n Credentials page |
| `YOUR_PIPELINE_ID` | GHL β†’ Opportunities β†’ Pipeline s
| `YOUR_HOT_STAG
πŸ“ž INBOUND FLOW β€” Vapi / Retell Webhook β†’ BAN
Receives end-of-call report from Vapi or Rete
Normalises Vapi + Retell payloads β†’ unified:
Skip calls < 30 s or transcript < 50 chars
Claude Haiku scores Budget Β· Authority Β· Need
Merges BANT score + objections into working o
score β‰₯ 6 β†’ Booking path | score < 6 β†’ Nurt
GPT-4o detects appointment intent + preferred
Extracts appointment_requested, preferred_tim
Search HighLevel contact by phone number
TRUE β†’ update existing | FALSE β†’ create new
Tag existing HL contact: voice-lead, qualifie
Create HL contact with phone + source = Voice
Rejoin update + create branches with resolved
Open opportunity in Hot Lead pipeline stage
Claude Sonnet generates rebuttal script using
Extracts response_script, technique, confiden
Gemini 2.0 Flash writes professional CRM note
Extracts crm_note string from agent output
Append AI CRM note to HL contact record
Move HL opportunity to Hot Lead stage
Persist qualified inbound call to voice_call_
Append summary row to Voice Call Log sheet
Search HL contact by phone before nurture ups
TRUE β†’ update | FALSE β†’ create
Tag contact: not-qualified, add to nurture qu
Create HL contact, flag for nurture sequence
Rejoin upsert paths with resolved contact ID
Open opportunity in Nurturing pipeline stage
Fire HL automation to enrol contact in nurtur
Persist not-qualified call to voice_call_logs
Append not-qualified row to sheet
9:00 AM Mon–Fri Β· cron: 0 9 * * 1-5
Retrieve all Nurturing stage contacts from Hi
GPT-4o Mini ranks leads by conversion priorit
Sort ranked_leads by priority_score desc Β· li
5 leads per batch β€” respects Vapi rate limits
POST outbound call to Vapi API for each prior
Record outbound initiation in voice_call_logs
Append outbound row to Voice Call Log sheet
πŸ“€ OUTBOUND FLOW β€” Daily Prioritised Outbound
modelparsermodelparsermodelparsermodelparsermodelparser
⚑
I
Inbound Call Webhook
Normalize Call Payload
V
Valid Call?
BANT Qualifier
Claude Haiku (BANT)
BANT Output Parser
Extract BANT
Q
Qualified?
Booking Intent Detector
GPT-4o (Booking)
Booking Output Parser
Extract Booking
Search GHL Contact
C
Contact Exists?
Update Contact
Create Contact
M
Merge Contact Paths
Create Hot Opportunity
Objection Handler
Claude Sonnet (Objection)
Objection Output Parser
Extract Objection Response
CRM Note Writer
Gemini Flash (CRM Note)
CRM Note Output Parser
Extract CRM Note
Update Contact Notes
Update Stage: Hot Lead
Log to Supabase
Log to Google Sheets
Search GHL Contact NQ
C
Contact Exists NQ?
Update Contact NQ
Create Contact NQ
M
Merge Contact NQ
Create Nurturing Opportu…
Trigger Nurture Workflow
Log to Supabase NQ
Log to Google Sheets NQ
⚑
D
Daily Outbound Schedule1
Fetch GHL Nurturing Leads1
Priority Ranker1
GPT-4o Mini (Ranker)1
Priority Ranker Output P…
Extract Ranked Leads1
S
Split in Batches1
Initiate Vapi Outbound C…
Log Outbound to Supabase1
Log Outbound to Sheets1
49 nodes49 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a webhook trigger.

  2. 2

    Process

    Data flows through 49 nodes, connecting agent, code, googlesheets.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (49)

GO

Google Sheets

googleSheets

#1
HT

HTTP Request

httpRequest

#2
SU

Supabase

supabase

#3
HI

HighLevel

highLevel

#4
CO

Code

code

#5
AI

AI Agent

n8n-nodes-langchain.agent

#6
AN

Anthropic Chat Model

n8n-nodes-langchain.lmChatAnthropic

#7
OP

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

#8
ST

Structured Output Parser

n8n-nodes-langchain.outputParserStructured

#9
GO

Google Gemini Chat Model

n8n-nodes-langchain.lmChatGoogleGemini

#10

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows β†’ New β†’ Import from file.
  3. 3Select the downloaded qualify-and-manage-voice-sales-calls-with-claude-gpt-4o-gemini-and-gohighlevel file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n β†’ Import from JSON:

{ "name": "Qualify and manage voice sales calls with Claude, GPT-4o, Gemini, and GoHighLevel", "nodes": [...], ...}

Integrations

agentcodegooglesheetshighlevelhttprequestiflmchatanthropiclmchatgooglegeminilmchatopenaimergeoutputparserstructuredscheduletriggersplitinbatchessupabasewebhook

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes49
Complexityhigh
Triggerwebhook
CategoryAI

Created by

Kumar SmartFlow Craft

Kumar SmartFlow Craft

@smartflowautomate

Tags

agentcodegooglesheetshighlevelhttprequestiflmchatanthropiclmchatgooglegeminilmchatopenaimerge
⚑

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