Data Processing & Analysis

AI agent: expense tracker in Google Sheets and n8n chat

Complex

High

Nodes

Complex

Trigger

High

Complexity

7/22/2025

Added

Workflow Overview

Total Nodes

Node Types

execute Workflow Trigger

Workflow Input Trigger

1 node

agent

AI Agent

1 node

chat Trigger

When chat message received

1 node

lm Chat Open Ai

OpenAI Chat Model, OpenAI Chat Model1

2 nodes

memory Buffer Window

Window Buffer Memory

1 node

sticky Note

Sticky Note

1 node

information Extractor

Expense text to JSON parser

1 node

google Sheets

Save expense into Google Sheets

1 node

tool Workflow

Parse msg and save to Sheets

1 node

Workflow JSON

10.34 KB

{
  "id": "aLTkMiEDYXbMK4fT",
  "meta": {
    "instanceId": "5b860a91d7844b5237bb51cc58691ca8c3dc5b576f42d4d6bbedfb8d43d58ece",
    "templateCredsSetupCompleted": true
  },
  "name": "AI agent: expense tracker in Google Sheets and n8n chat",
  "tags": [],
  "nodes": [
    {
      "id": "9260b53e-6848-4f34-9643-311c58c807f6",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        360,
        40
      ],
      "parameters": {
        "options": {
          "maxIterations": 3,
          "systemMessage": "You are a helpful accountant. Use save to db tool to save expense message to DB. respond with \"Your expense saved, here is the output of save sub-workflow:[data]\""
        }
      },
      "typeVersion": 1.7
    },
    {
      "id": "0d7a686c-42c2-4223-9f78-b454788fb6da",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
        0,
        40
      ],
      "webhookId": "6...

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