🌍 AI Interpreter and Translator for WhatsApp – Translate Voice & Text

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Built by Bruno Dias Bruno Dias
Created on June 05, 2026

Description


🌍 AI WhatsApp Translator – Multilingual Voice & Text Translator for n8n

Hi! I'm Bruno — I’ve been building AI-powered workflows for n8n and Make for 2+ years, focused on smart automation and real conversational agents.

This powerful workflow allows you to receive WhatsApp messages (text or audio), automatically detect the sender’s language using their phone prefix, translate the content using GPT-4o via LangChain, and reply instantly via WhatsApp — all with native tone and cultural fluency.

It’s ideal for international support, global communities, multilingual bots, and agencies managing clients from different countries.

🔧 How it works

Message (text or voice) is received via webhook (WhatsApp API or Evolution API)
Sender's prefix is mapped to a country/language
Audio messages are transcribed using OpenAI Whisper
The text is translated using LangChain agent with GPT-4o
The reply is structured in JSON and sent back via WhatsApp

🧰 Nodes & Tech Used

HTTP Request** (Webhook & API calls)
OpenAI Whisper** (Audio transcription)
LangChain + GPT-4o** (LLM for translation)
If, Set, Merge** (Routing and logic)
Custom JSON response** for WhatsApp formats

📌 What you’ll need

OpenAI API key
WhatsApp API or Evolution API access
n8n (Cloud or self-hosted)
(Optional) Typebot, Airtable, CRM for integration

🛒 Want to use it?

❤️ Buy workflows: https://iloveflows.com
☁️ Try n8n Cloud: https://n8n.partnerlinks.io/amanda

Nodes Used (9)

AI Agent
@n8n/n8n-nodes-langchain.agent
Calculator
@n8n/n8n-nodes-langchain.toolCalculator
Code
n8n-nodes-base.code
Groq Chat Model
@n8n/n8n-nodes-langchain.lmChatGroq
HTTP Request
n8n-nodes-base.httpRequest
OpenAI
@n8n/n8n-nodes-langchain.openAi
OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi
Text Classifier
@n8n/n8n-nodes-langchain.textClassifier
Think Tool
@n8n/n8n-nodes-langchain.toolThink