Connect Retell Voice Agents to Custom Functions — n8n Workflow

Low complexity🔗 Webhook3 nodes💎 Other👁 1,189 viewsby Agent Studio

Overview

Overview This workflow allows you to trigger custom logic in n8n directly from Retell's Voice Agent using Custom Functions. It captures a POST webhook from Retell every time a Voice Agent reaches a Custom Function node. You can plug in any logic—call an external API, book a meeting, update a CRM, or even return a dynamic response back to the agent.

Who is it for For builders using Retell who want to extend Voice Agent functionality with real-time custom workflows or AI-generated responses.

Pre

Workflow Preview

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How it Works

  1. 1

    Trigger

    The workflow starts with a webhook trigger.

  2. 2

    Process

    Data flows through 3 nodes, connecting respondtowebhook, set, webhook.

  3. 3

    Output

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

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 → New → Import from file.
  3. 3Select the downloaded connect-retell-voice-agents-to-custom-functions 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 → Import from JSON:

{ "name": "Connect Retell Voice Agents to Custom Functions", "nodes": [...], ...}

Integrations

respondtowebhooksetwebhook

Get This Workflow

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View on n8n.io
Nodes3
Complexitylow
Triggerwebhook
Views1,189
CategoryOther

Created by

Agent Studio

Agent Studio

@agentstudio

Tags

respondtowebhooksetwebhook
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