Templates / Manage finances, tasks, tweets and Gmail with GPT‑4.1 on WhatsApp

Manage finances, tasks, tweets and Gmail with GPT‑4.1 on WhatsApp

Needs changes

by moosa ✓ · 435 views · created 2026-02-01 · Personal Productivity, AI Chatbot

Needs changes. This template uses 1 thing(s) that n8n 3.0 removes: SerpApi (Google Search). 1 breaking item(s) found. Static check, last run 2026-10-19.

What this workflow does

This AI workflow has 33 nodes and runs when an HTTP POST request hits its webhook URL (plus 1 other trigger). Along the way it connects Google Sheets, OpenAI Chat Model, X (Formerly Twitter) and Gmail and 3 more. It also calls tasks.googleapis.com over HTTP.

How it runs

Trigger: When an HTTP POST request hits its webhook URL (plus 1 other trigger).

  1. Switch: routes items into 4 branches
  2. main-agent (AI Agent): runs an AI agent, with model: OpenAI Chat Model; 6 tools (get-gmail, Calculator, Tweet-agent, expense-tracker…); memory: Simple Memory
  3. download-audio (HTTP Request): calls an HTTP API
  4. audio to (Edit Fields (Set)): sets 2 fields: text, audio
  5. If: checks a condition and branches into true / false
  6. Transcribe a recording (OpenAI): transcribe (audio)
  7. Generate audio (OpenAI): work with audio
  8. send text response (HTTP Request): calls an HTTP API (POST)
  9. set audio to one (Edit Fields (Set)): sets 2 fields: text, audio
  10. send audio response (HTTP Request): calls an HTTP API (POST)

Services it uses

Google SheetsOpenAI Chat ModelX (Formerly Twitter)GmailOpenAIHTTP RequestSerpApi (Google Search)

HTTP calls to: tasks.googleapis.com

Before you upgrade to n8n 3.0

1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:

  • SerpApi (Google Search) in quick-web-search: no direct replacement: call the SerpApi REST API with an HTTP Request tool, or use a verified community node.

Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).

Removed in 3.0Replace with
SerpApi (Google Search)
quick-web-search
No direct replacement: call the SerpApi REST API with an HTTP Request tool, or use a verified community node

Nodes used (17)

From the author

n8n Wizard 🪄 – Your personal AI assistant inside WhatsApp This workflow transforms WhatsApp into a powerful personal AI using n8n + Green-API. Send text or voice messages — the assistant understands intent and handles daily tasks automatically. Key features…

Excerpt from moosa's description on n8n.io.

View the original on n8n.io → Check your own copy

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