Nirav Gajera This workflow corresponds to n8n.io template #14135 — we link there as the canonical source.
This workflow follows the Chainllm → Chat Trigger recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"meta": {
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "ff5c621a-0deb-4067-864d-04bd59b6c2e5",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
6480,
4560
],
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "9806596c-ad71-48dc-a7b4-e4ffbc992dbd",
"name": "Detect Intent",
"type": "n8n-nodes-base.code",
"position": [
6704,
4560
],
"parameters": {
"jsCode": "\nconst chatInput = ($input.first().json.chatInput || $input.first().json.input || '').trim();\nconsole.log('Input:', chatInput);\nconst isSummary = /\\b(summary|report|total|spending|how much|breakdown|stats)\\b/i.test(chatInput);\nconst isHelp = /^(\\?|help|\\/help)$/i.test(chatInput);\nreturn [{ json: {\n chat_input: chatInput,\n intent: isSummary ? 'summary' : isHelp ? 'help' : 'expense'\n}}];\n"
},
"typeVersion": 2
},
{
"id": "9387f59f-2ce3-4d22-b8a8-7e48032f3ca2",
"name": "Intent Switch",
"type": "n8n-nodes-base.switch",
"position": [
6928,
4544
],
"parameters": {
"rules": {
"values": [
{
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "i1",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.intent }}",
"rightValue": "expense"
}
]
}
},
{
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "i2",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.intent }}",
"rightValue": "summary"
}
]
}
},
{
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "i3",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.intent }}",
"rightValue": "help"
}
]
}
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "57ea0ffb-1a76-4f6c-8e60-0e7619c7f4a7",
"name": "Read All Expenses",
"type": "n8n-nodes-base.googleSheets",
"position": [
7152,
4368
],
"parameters": {
"options": {},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg/edit?usp=drivesdk",
"cachedResultName": "Expense track"
}
},
"typeVersion": 4.5,
"alwaysOutputData": true
},
{
"id": "b9f18554-7c19-4969-86de-0a81be8c53d2",
"name": "Prepare Data",
"type": "n8n-nodes-base.code",
"position": [
7376,
4368
],
"parameters": {
"jsCode": "\n// This node ALWAYS outputs data regardless of how many rows the sheet has\n// Fixes: \"No item to return\" when sheet is empty\n\nconst allRows = $input.all();\nconst chatInput = $('Detect Intent').first().json.chat_input;\n\n// Calculate current month total from existing rows (0 if empty)\nconst now = new Date();\nconst currentMonth = now.toLocaleString('en-US', {month:'long'}) + ' ' + now.getFullYear();\n\nconst monthTotal = allRows\n .filter(r => (r.json['Month'] || '') === currentMonth)\n .reduce((sum, r) => sum + parseFloat(r.json['Amount'] || 0), 0);\n\nconsole.log('Rows in sheet:', allRows.length, '| Month total so far:', monthTotal);\n\n// Always return exactly 1 item so flow never stops\nreturn [{ json: {\n chat_input: chatInput,\n month_total: monthTotal,\n current_month: currentMonth,\n row_count: allRows.length\n}}];\n"
},
"typeVersion": 2
},
{
"id": "a433bab2-5943-49d2-a770-b75ecd7baa62",
"name": "AI Parse Expense",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
7600,
4368
],
"parameters": {
"text": "=You are an expense parser. Extract expense details from this message and return ONLY a JSON object, nothing else.\n\nMessage: \"{{ $('Detect Intent').first().json.chat_input }}\"\nToday: {{ new Date().toISOString().split('T')[0] }}\n\nReturn ONLY this JSON:\n{\"amount\": <number>, \"description\": \"<2-4 words>\", \"category\": \"<Food & Dining|Transport|Shopping|Bills & Utilities|Entertainment|Health|Business|Education|Other>\", \"currency\": \"<INR|USD|EUR|GBP>\", \"date\": \"<YYYY-MM-DD>\", \"is_expense\": <true|false>}\n\nRules:\n- If the message is clearly an expense with an amount \u2192 is_expense: true\n- If no amount can be found \u2192 is_expense: false\n- currency default: INR\n- date default: today\n\nExamples:\n\"spent 500 on car wash\" \u2192 {\"amount\":500,\"description\":\"Car wash\",\"category\":\"Transport\",\"currency\":\"INR\",\"date\":\"{{ new Date().toISOString().split('T')[0] }}\",\"is_expense\":true}\n\"test 500\" \u2192 {\"amount\":500,\"description\":\"Test\",\"category\":\"Other\",\"currency\":\"INR\",\"date\":\"{{ new Date().toISOString().split('T')[0] }}\",\"is_expense\":true}\n\"lunch 450\" \u2192 {\"amount\":450,\"description\":\"Lunch\",\"category\":\"Food & Dining\",\"currency\":\"INR\",\"date\":\"{{ new Date().toISOString().split('T')[0] }}\",\"is_expense\":true}\n\"hello\" \u2192 {\"amount\":0,\"description\":\"\",\"category\":\"Other\",\"currency\":\"INR\",\"date\":\"{{ new Date().toISOString().split('T')[0] }}\",\"is_expense\":false}\n\nJSON only. No explanation.",
"promptType": "define"
},
"typeVersion": 1.4
},
{
"id": "627fd6e3-2232-4f76-bafe-a4b01fbc0e51",
"name": "Claude Haiku",
"type": "@n8n/n8n-nodes-langchain.lmChatAnthropic",
"position": [
7744,
4544
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "claude-haiku-4-5-20251001",
"cachedResultName": "Claude Haiku 4.5"
},
"options": {}
},
"typeVersion": 1.3
},
{
"id": "218d3c40-8eb1-4dd8-b1b9-8dc01fa525b0",
"name": "Parse & Total",
"type": "n8n-nodes-base.code",
"position": [
7952,
4368
],
"parameters": {
"jsCode": "const rawText = ($json.text || $json.output || '').trim();\nconst prepared = $('Prepare Data').first().json;\nconst chatInput = prepared.chat_input;\nconsole.log('AI response:', rawText);\n\nlet parsed = null;\ntry { parsed = JSON.parse(rawText); } catch(e) {}\nif (!parsed) {\n try { const m = rawText.match(/\\{[\\s\\S]*\\}/); if(m) parsed = JSON.parse(m[0]); } catch(e) {}\n}\n\nif (!parsed || !parsed.is_expense || !parsed.amount || parseFloat(parsed.amount) <= 0) {\n return [{ json: {\n valid: false,\n reply: `I couldn't identify an expense amount in that message.\\n\\nPlease include an amount, like:\\n\u2022 \"spent 500 on lunch\"\\n\u2022 \"uber 150\"\\n\u2022 \"1200 electricity bill\"`\n }}];\n}\n\nconst emo = {'Food & Dining':'\ud83c\udf55','Transport':'\ud83d\ude97','Shopping':'\ud83d\udecd\ufe0f','Bills & Utilities':'\ud83d\udca1','Entertainment':'\ud83c\udfac','Health':'\ud83c\udfe5','Business':'\ud83d\udcbc','Education':'\ud83d\udcda','Other':'\ud83d\udcb0'};\nconst cat = parsed.category || 'Other';\nconst amount = parseFloat(parsed.amount);\nconst currency = parsed.currency || 'INR';\nconst symbol = currency === 'INR' ? '\u20b9' : currency + ' ';\nconst dateStr = parsed.date || new Date().toISOString().split('T')[0];\n\n// Derive month from parsed date (not today)\nconst parsedDate = new Date(dateStr);\nconst entryMonth = parsedDate.toLocaleString('en-US', {month:'long'}) + ' ' + parsedDate.getFullYear();\n\n// Running total for that specific month\nconst allRows = $('Read All Expenses').all();\nconst entryMonthTotal = allRows\n .filter(r => (r.json['Month'] || '') === entryMonth)\n .reduce((sum, r) => sum + parseFloat(r.json['Amount'] || 0), 0);\nconst newTotal = entryMonthTotal + amount;\n\nconsole.log(`Saving: ${symbol}${amount} | ${cat} | ${parsed.description} | Month: ${entryMonth} | Total: ${newTotal}`);\n\nreturn [{ json: {\n valid: true,\n Date: dateStr,\n Amount: amount,\n Category: cat,\n Description: parsed.description || chatInput,\n Currency: currency,\n Month: entryMonth,\n \"Raw Message\": chatInput,\n Total: newTotal,\n _display: `${emo[cat]||'\ud83d\udcb0'} *${cat}* \u2014 ${parsed.description || chatInput}\\n\ud83d\udcb3 ${symbol}${amount}\\n\ud83d\udcc5 ${dateStr}\\n\ud83d\udcca ${entryMonth} total: ${symbol}${newTotal.toFixed(0)}`\n}}];"
},
"typeVersion": 2
},
{
"id": "2a720602-ff73-44f5-9669-986e57be1d4d",
"name": "Is Valid Expense?",
"type": "n8n-nodes-base.if",
"position": [
8176,
4368
],
"parameters": {
"options": {},
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "v1",
"operator": {
"type": "boolean",
"operation": "equals",
"rightType": "boolean"
},
"leftValue": "={{ $json.valid }}",
"rightValue": true
}
]
}
},
"typeVersion": 2.1
},
{
"id": "52bdb900-a6c1-4676-83fb-c34f63ea9434",
"name": "Save Expense to Sheet",
"type": "n8n-nodes-base.googleSheets",
"position": [
8400,
4272
],
"parameters": {
"columns": {
"value": {
"Date": "={{ $json.Date }}",
"Month": "={{ $json.Month }}",
"Total": "={{ $json.Total }}",
"Amount": "={{ $json.Amount }}",
"Category": "={{ $json.Category }}",
"Currency": "={{ $json.Currency }}",
"Description": "={{ $json.Description }}",
"Raw Message": "={{ $json['Raw Message'] }}"
},
"schema": [
{
"id": "Date",
"type": "string",
"display": true,
"required": false,
"displayName": "Date",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Amount",
"type": "string",
"display": true,
"required": false,
"displayName": "Amount",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Category",
"type": "string",
"display": true,
"required": false,
"displayName": "Category",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Description",
"type": "string",
"display": true,
"required": false,
"displayName": "Description",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Currency",
"type": "string",
"display": true,
"required": false,
"displayName": "Currency",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Month",
"type": "string",
"display": true,
"required": false,
"displayName": "Month",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Raw Message",
"type": "string",
"display": true,
"required": false,
"displayName": "Raw Message",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Total",
"type": "string",
"display": true,
"required": false,
"displayName": "Total",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "append",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg/edit?usp=drivesdk",
"cachedResultName": "Expense track"
}
},
"typeVersion": 4.5
},
{
"id": "de6afe46-3c00-459c-85e4-8cb613e5714b",
"name": "Reply Saved",
"type": "n8n-nodes-base.code",
"position": [
8624,
4272
],
"parameters": {
"jsCode": "\nconst d = $('Parse & Total').first().json;\nreturn [{ json: { output: `\u2705 Expense saved!\\n\\n${d._display}` }}];\n"
},
"typeVersion": 2
},
{
"id": "7d347763-8d31-48c4-aba7-f7ed6f332b6d",
"name": "Reply Invalid",
"type": "n8n-nodes-base.code",
"position": [
8400,
4464
],
"parameters": {
"jsCode": "\nconst d = $('Parse & Total').first().json;\nreturn [{ json: { output: d.reply || \"Please include an amount in your message.\" }}];\n"
},
"typeVersion": 2
},
{
"id": "e8261ff4-b303-47fd-a0f6-997f27f7b037",
"name": "Read for Summary",
"type": "n8n-nodes-base.googleSheets",
"position": [
7264,
4736
],
"parameters": {
"options": {},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1n7izUA8ACWfN-XqwOQkEkZ6lspUXsY1PMlmko67tLSg/edit?usp=drivesdk",
"cachedResultName": "Expense track"
}
},
"typeVersion": 4.5,
"alwaysOutputData": true
},
{
"id": "5da81e46-54f5-434c-bd13-21e6c8d1c00a",
"name": "Build Summary",
"type": "n8n-nodes-base.code",
"position": [
7472,
4736
],
"parameters": {
"jsCode": "const rows = $input.all();\nconst now = new Date();\nconst chatInput = $('Detect Intent').first().json.chat_input;\n\n// Detect if user asked for specific month\nconst monthNames = ['january','february','march','april','may','june','july','august','september','october','november','december'];\nlet targetMonth = null;\n\nconst lower = chatInput.toLowerCase();\nfor (const m of monthNames) {\n if (lower.includes(m)) {\n const yearMatch = lower.match(/20(\\d{2})/);\n const shortYearMatch = lower.match(/\\b(\\d{2})\\b/);\n let year = now.getFullYear();\n if (yearMatch) year = parseInt(yearMatch[0]);\n else if (shortYearMatch) year = 2000 + parseInt(shortYearMatch[1]);\n targetMonth = m.charAt(0).toUpperCase() + m.slice(1) + ' ' + year;\n break;\n }\n}\n\nif (!targetMonth) {\n targetMonth = now.toLocaleString('en-US', {month:'long'}) + ' ' + now.getFullYear();\n}\n\nconsole.log('Summary for month:', targetMonth);\n\nconst thisMonth = rows.filter(r => (r.json['Month'] || '') === targetMonth);\n\nif (rows.length === 0 || thisMonth.length === 0) {\n return [{ json: { output: `\ud83d\udcca No expenses found for *${targetMonth}*.\\n\\nTry: SUMMARY or \"summary march\"` }}];\n}\n\nconst total = thisMonth.reduce((s,r) => s + parseFloat(r.json['Amount']||0), 0);\nconst byCategory = {};\nfor (const r of thisMonth) {\n const cat = r.json['Category'] || 'Other';\n byCategory[cat] = (byCategory[cat]||0) + parseFloat(r.json['Amount']||0);\n}\nconst sorted = Object.entries(byCategory).sort((a,b) => b[1]-a[1]);\nconst emo = {'Food & Dining':'\ud83c\udf55','Transport':'\ud83d\ude97','Shopping':'\ud83d\udecd\ufe0f','Bills & Utilities':'\ud83d\udca1','Entertainment':'\ud83c\udfac','Health':'\ud83c\udfe5','Business':'\ud83d\udcbc','Education':'\ud83d\udcda','Other':'\ud83d\udcb0'};\nconst lines = sorted.map(([c,a]) => `${emo[c]||'\ud83d\udcb0'} ${c}: \u20b9${a.toFixed(0)} (${((a/total)*100).toFixed(0)}%)`).join('\\n');\n\nreturn [{ json: { output:\n `\ud83d\udcca *${targetMonth} Report*\\n\\n` +\n `\ud83d\udcb3 *Total: \u20b9${total.toFixed(0)}*\\n` +\n `\ud83d\udcdd Entries: ${thisMonth.length}\\n` +\n `\ud83d\udcc8 Daily avg: \u20b9${(total/now.getDate()).toFixed(0)}\\n` +\n `\ud83d\udd1d Top: ${emo[sorted[0]?.[0]]||'\ud83d\udcb0'} ${sorted[0]?.[0]}\\n\\n` +\n `*Breakdown:*\\n${lines}`\n}}];"
},
"typeVersion": 2
},
{
"id": "885991be-8d6f-49f5-b742-c57e3da0aaa3",
"name": "Send Help",
"type": "n8n-nodes-base.code",
"position": [
7152,
4976
],
"parameters": {
"jsCode": "\nreturn [{ json: { output:\n`\ud83d\udcb0 *Expense Tracker \u2014 Commands*\n\n\ud83d\udcdd *Add expense (just type naturally):*\n\u2022 \"spent 500 on lunch\"\n\u2022 \"paid 1200 electricity bill\"\n\u2022 \"uber 150\"\n\u2022 \"test 500\"\n\u2022 \"\u20b9450 groceries\"\n\u2022 \"netflix 499\"\n\n\ud83d\udcca *Monthly report:*\nType: SUMMARY\n\n\ud83d\udcb1 *Currencies:* \u20b9INR $USD \u20acEUR \u00a3GBP\n\n\ud83d\udcc2 *Auto-detected categories:*\n\ud83c\udf55 Food & Dining \ud83d\ude97 Transport\n\ud83d\udecd\ufe0f Shopping \ud83d\udca1 Bills & Utilities\n\ud83c\udfac Entertainment \ud83c\udfe5 Health\n\ud83d\udcbc Business \ud83d\udcda Education \ud83d\udcb0 Other`\n}}];\n"
},
"typeVersion": 2
},
{
"id": "fcb94238-8ccf-4b7f-9dff-c6813d5eecb7",
"name": "Overview",
"type": "n8n-nodes-base.stickyNote",
"position": [
6128,
3968
],
"parameters": {
"width": 476,
"height": 508,
"content": "## \ud83d\udcb0 AI Expense Tracker\nTrack expenses by chatting naturally.\n\n**Just type your expense:**\n_\"spent 500 on lunch\"_\n_\"uber 150\"_\n_\"1200 electricity bill\"_\n\n**Commands:**\n\u2022 `SUMMARY` \u2014 current month report\n\u2022 `summary february` \u2014 specific month\n\u2022 `HELP` \u2014 all commands\n\n**Currencies:** \u20b9 INR \u00b7 $ USD \u00b7 \u20ac EUR \u00b7 \u00a3 GBP"
},
"typeVersion": 1
},
{
"id": "fc55f4ca-d4d0-4f3d-aed3-4cf071cd0919",
"name": "Trigger Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
6192,
4512
],
"parameters": {
"color": 5,
"width": 424,
"height": 196,
"content": "## 1\ufe0f\u20e3 Entry Point\nReceives every chat message.\nPasses `chatInput` to next node."
},
"typeVersion": 1
},
{
"id": "fd4f6cce-59fc-4a26-8976-fb13377c9798",
"name": "Intent Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
6624,
4288
],
"parameters": {
"color": 5,
"height": 424,
"content": "## 2\ufe0f\u20e3 Detect Intent\nReads the message and classifies:\n\u2022 **expense** \u2014 anything with an amount\n\u2022 **summary** \u2014 report/total/breakdown\n\u2022 **help** \u2014 help/?"
},
"typeVersion": 1
},
{
"id": "452c8436-94d9-4e03-91a7-50e2406911db",
"name": "Switch Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
6880,
4288
],
"parameters": {
"color": 5,
"width": 220,
"height": 430,
"content": "## 3\ufe0f\u20e3 Routes to 3 paths\n**Output 0** \u2192 Expense flow\n**Output 1** \u2192 Summary flow\n**Output 2** \u2192 Help message"
},
"typeVersion": 1
},
{
"id": "29e8945f-d2ce-40c9-9730-8e63edd4a359",
"name": "Read Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
7104,
4080
],
"parameters": {
"color": 6,
"width": 204,
"height": 456,
"content": "## 4\ufe0f\u20e3 Read Sheet\nLoads all existing rows.\n`alwaysOutputData: true` ensures\nflow continues even if sheet is empty."
},
"typeVersion": 1
},
{
"id": "fbf91c41-741b-49c3-865b-471c296d0737",
"name": "Prepare Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
7312,
4080
],
"parameters": {
"color": 6,
"width": 220,
"height": 450,
"content": "## 5\ufe0f\u20e3 Prepare Data\nComputes running month total\nfrom existing rows.\nAlways outputs 1 item \u2192 flow\nnever stops on empty sheet."
},
"typeVersion": 1
},
{
"id": "fe8321dd-c9c0-4733-a70c-ad759db0bf8f",
"name": "AI Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
7552,
4080
],
"parameters": {
"color": 6,
"width": 300,
"height": 454,
"content": "## 6\ufe0f\u20e3 AI Parse\nClaude Haiku reads the message\nand extracts:\n\u2022 amount \u00b7 description\n\u2022 category \u00b7 currency \u00b7 date\n\u2022 is_expense (true/false)\n\nReturns clean JSON only."
},
"typeVersion": 1
},
{
"id": "740ca285-5709-4730-a206-0572bdb160ff",
"name": "Parse Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
7872,
4080
],
"parameters": {
"color": 6,
"width": 230,
"height": 450,
"content": "## 7\ufe0f\u20e3 Parse & Total\nValidates AI response.\nDerives Month from parsed date\n(not today \u2014 handles past entries).\nCalculates running monthly total."
},
"typeVersion": 1
},
{
"id": "00edd05c-dcd0-437f-9c4a-c5c1a994680e",
"name": "Valid Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
8112,
4080
],
"parameters": {
"color": 6,
"width": 212,
"height": 452,
"content": "## 8\ufe0f\u20e3 Valid?\n\u2705 TRUE \u2192 Save to sheet\n\u274c FALSE \u2192 Ask user\nto add an amount"
},
"typeVersion": 1
},
{
"id": "decba3df-1e53-4a14-9c87-bdc3a9303fca",
"name": "Save Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
8352,
4064
],
"parameters": {
"color": 6,
"width": 492,
"height": 536,
"content": "## 9\ufe0f\u20e3 Save + Reply\nAppends new row to sheet.\nReplies with confirmation:\n\u2705 Category \u00b7 Amount \u00b7 Date\n\ud83d\udcca Running month total"
},
"typeVersion": 1
},
{
"id": "9ad784c3-e3f3-41eb-85a7-72f6d3c475a0",
"name": "Summary Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
7104,
4560
],
"parameters": {
"color": 2,
"width": 596,
"height": 358,
"content": "## \ud83d\udcca SUMMARY FLOW\nReads all rows \u2192 filters by month.\nDetects specific month from message\n_(e.g. \"summary february 2026\")_\nDefaults to current month.\nShows total, breakdown, daily avg."
},
"typeVersion": 1
},
{
"id": "a1a82af4-5888-4681-8c82-1465c2eff8b0",
"name": "Sheet Columns",
"type": "n8n-nodes-base.stickyNote",
"position": [
6144,
4288
],
"parameters": {
"color": 7,
"width": 200,
"height": 180,
"content": "## \ud83d\udccb Sheet Columns\nA: Date\nB: Amount\nC: Category\nD: Description\nE: Currency\nF: Month\nG: Raw Message\nH: Total _(running monthly)_"
},
"typeVersion": 1
}
],
"connections": {
"Claude Haiku": {
"ai_languageModel": [
[
{
"node": "AI Parse Expense",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Prepare Data": {
"main": [
[
{
"node": "AI Parse Expense",
"type": "main",
"index": 0
}
]
]
},
"Detect Intent": {
"main": [
[
{
"node": "Intent Switch",
"type": "main",
"index": 0
}
]
]
},
"Intent Switch": {
"main": [
[
{
"node": "Read All Expenses",
"type": "main",
"index": 0
}
],
[
{
"node": "Read for Summary",
"type": "main",
"index": 0
}
],
[
{
"node": "Send Help",
"type": "main",
"index": 0
}
]
]
},
"Parse & Total": {
"main": [
[
{
"node": "Is Valid Expense?",
"type": "main",
"index": 0
}
]
]
},
"AI Parse Expense": {
"main": [
[
{
"node": "Parse & Total",
"type": "main",
"index": 0
}
]
]
},
"Read for Summary": {
"main": [
[
{
"node": "Build Summary",
"type": "main",
"index": 0
}
]
]
},
"Is Valid Expense?": {
"main": [
[
{
"node": "Save Expense to Sheet",
"type": "main",
"index": 0
}
],
[
{
"node": "Reply Invalid",
"type": "main",
"index": 0
}
]
]
},
"Read All Expenses": {
"main": [
[
{
"node": "Prepare Data",
"type": "main",
"index": 0
}
]
]
},
"Save Expense to Sheet": {
"main": [
[
{
"node": "Reply Saved",
"type": "main",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "Detect Intent",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
This workflow turns a simple chat interface into a powerful personal expense tracker. Just describe your spending in plain language — the AI understands it, categorizes it, and saves it to Google Sheets automatically.
Source: https://n8n.io/workflows/14135/ — original creator credit. Request a take-down →
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