AI WhatsApp Translator: Voice & Text Interpreter

This n8n workflow revolutionizes communication for global businesses by receiving WhatsApp messages—text or voice—via webhook from WhatsApp API or Evolution API. It intelligently detects the sender's language using their phone prefix mapping, transcribes audio files with OpenAI Whisper for accurate speech-to-text conversion, and leverages a LangChain agent powered by GPT-4o to translate content with native tone and cultural nuance.

The workflow then structures a context-aware reply in the appropriate language and sends it back instantly via WhatsApp, ensuring seamless multilingual interactions. Key nodes include HTTP Request for webhooks and APIs, OpenAI Whisper for transcription, LangChain for intelligent translation, and logic nodes like If, Set, and Merge for robust routing and data handling.

Ideal for international customer support, global sales teams nurturing leads across languages, multilingual chatbots, and agencies managing diverse clients. Benefits include time savings on manual translations, improved response times, higher customer satisfaction, and scalable automation without coding expertise. Requires OpenAI API key and WhatsApp access; integrates optionally with Typebot or CRMs.