Pawel This workflow corresponds to n8n.io template #16420 — we link there as the canonical source.
The workflow JSON
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{
"name": "Track competitor listing prices on Etsy",
"nodes": [
{
"id": "manual-trigger",
"name": "Run tracker manually",
"type": "n8n-nodes-base.manualTrigger",
"position": [
0,
300
],
"parameters": {},
"typeVersion": 1
},
{
"id": "schedule-trigger",
"name": "Check every 6 hours",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
0,
500
],
"parameters": {
"rule": {
"interval": [
{
"field": "hours",
"hoursInterval": 6
}
]
}
},
"typeVersion": 1.2
},
{
"id": "configuration",
"name": "Configuration (EDIT ME)",
"type": "n8n-nodes-base.set",
"position": [
280,
400
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "config-listing-ids",
"name": "listing_ids",
"type": "string",
"value": "PASTE_COMMA_SEPARATED_LISTING_IDS_HERE"
},
{
"id": "config-threshold",
"name": "minimum_change_percent",
"type": "number",
"value": 0
}
]
},
"includeOtherFields": false
},
"typeVersion": 3.4
},
{
"id": "build-request",
"name": "Build Etsy batch request",
"type": "n8n-nodes-base.code",
"position": [
560,
400
],
"parameters": {
"jsCode": "// Validates the user input and builds one public Etsy API URL.\n// Listing IDs are the numeric values found in Etsy listing URLs.\nconst config = $input.first().json;\nconst rawIds = String(config.listing_ids || '');\nconst listingIds = [...new Set(rawIds.match(/\\d+/g) || [])];\n\nif (listingIds.length === 0) {\n throw new Error('Add at least one numeric Etsy listing ID in Configuration (EDIT ME).');\n}\nif (listingIds.length > 100) {\n throw new Error('Etsy accepts up to 100 listing IDs per batch request.');\n}\n\nconst minimumChangePercent = Number(config.minimum_change_percent || 0);\nif (!Number.isFinite(minimumChangePercent) || minimumChangePercent < 0) {\n throw new Error('minimum_change_percent must be zero or a positive number.');\n}\n\nconst encodedIds = encodeURIComponent(listingIds.join(','));\n\nreturn [{\n json: {\n listing_ids: listingIds,\n minimum_change_percent: minimumChangePercent,\n request_url: `https://api.etsy.com/v3/application/listings/batch?listing_ids=${encodedIds}`\n }\n}];"
},
"typeVersion": 2
},
{
"id": "fetch-listings",
"name": "Fetch public Etsy listings",
"type": "n8n-nodes-base.httpRequest",
"position": [
840,
400
],
"parameters": {
"url": "={{ $json.request_url }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"typeVersion": 4.3
},
{
"id": "compare-prices",
"name": "Compare prices with previous run",
"type": "n8n-nodes-base.code",
"position": [
1120,
400
],
"parameters": {
"jsCode": "// Compares the current Etsy prices with the previous production run.\n// Workflow static data keeps the snapshot inside n8n, so no database is required.\nconst response = $input.first().json;\nconst config = $('Build Etsy batch request').first().json;\nconst listings = Array.isArray(response.results) ? response.results : [];\nconst requestedIds = config.listing_ids.map(String);\nconst threshold = Number(config.minimum_change_percent || 0);\nconst staticData = $getWorkflowStaticData('global');\nconst previous = staticData.etsyPriceTrackerSnapshot || {};\nconst hasPreviousSnapshot = Object.keys(previous).length > 0;\nconst current = {};\nconst changes = [];\n\nconst getPrice = (listing) => {\n const amount = Number(listing?.price?.amount);\n const divisor = Number(listing?.price?.divisor || 100);\n return Number.isFinite(amount) && divisor > 0 ? amount / divisor : null;\n};\n\nfor (const listing of listings) {\n const id = String(listing.listing_id);\n const price = getPrice(listing);\n const record = {\n listing_id: id,\n title: listing.title || '',\n shop_id: listing.shop_id ? String(listing.shop_id) : '',\n price,\n currency: listing?.price?.currency_code || '',\n quantity: listing.quantity ?? null,\n state: listing.state || '',\n url: listing.url || `https://www.etsy.com/listing/${id}`,\n checked_at: new Date().toISOString()\n };\n current[id] = record;\n\n const old = previous[id];\n if (!hasPreviousSnapshot || !old || price === null || old.price === null) continue;\n\n const oldCents = Math.round(Number(old.price) * 100);\n const newCents = Math.round(price * 100);\n if (oldCents === newCents) continue;\n\n const changePercent = oldCents === 0\n ? null\n : Math.round((((newCents - oldCents) / oldCents) * 100) * 100) / 100;\n if (changePercent !== null && Math.abs(changePercent) < threshold) continue;\n\n changes.push({\n type: 'price_changed',\n listing_id: id,\n title: record.title,\n old_price: old.price,\n new_price: price,\n currency: record.currency,\n change_percent: changePercent,\n url: record.url\n });\n}\n\nif (hasPreviousSnapshot) {\n for (const id of requestedIds) {\n if (previous[id] && !current[id]) {\n changes.push({\n type: 'listing_unavailable',\n listing_id: id,\n title: previous[id].title || '',\n old_price: previous[id].price,\n currency: previous[id].currency || '',\n url: previous[id].url || `https://www.etsy.com/listing/${id}`\n });\n }\n }\n}\n\nstaticData.etsyPriceTrackerSnapshot = current;\n\nconst unavailableOnFirstRun = hasPreviousSnapshot\n ? []\n : requestedIds.filter((id) => !current[id]);\n\nreturn [{\n json: {\n status: hasPreviousSnapshot ? 'comparison_complete' : 'baseline_created',\n checked_at: new Date().toISOString(),\n requested_count: requestedIds.length,\n found_count: listings.length,\n total_changes: changes.length,\n changes,\n unavailable_on_first_run: unavailableOnFirstRun,\n current_listings: Object.values(current)\n }\n}];"
},
"typeVersion": 2
},
{
"id": "changes-found",
"name": "Changes found?",
"type": "n8n-nodes-base.if",
"position": [
1400,
400
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "has-price-changes",
"operator": {
"type": "number",
"operation": "gt"
},
"leftValue": "={{ $json.total_changes }}",
"rightValue": 0
}
]
}
},
"typeVersion": 2.2
},
{
"id": "price-change-alerts",
"name": "Price change alerts",
"type": "n8n-nodes-base.set",
"position": [
1680,
300
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "alert-message",
"name": "result_message",
"type": "string",
"value": "=Price changes detected for {{ $json.total_changes }} Etsy listing(s). Connect this output to Slack, email, Telegram, or your preferred notification node."
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "no-alerts-summary",
"name": "Baseline or no changes",
"type": "n8n-nodes-base.set",
"position": [
1680,
500
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "summary-message",
"name": "result_message",
"type": "string",
"value": "={{ $json.status === 'baseline_created' ? 'Baseline saved. The next scheduled run will compare prices against it.' : 'No price changes matched your threshold.' }}"
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "overview-sticky",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-40,
-420
],
"parameters": {
"color": 1,
"width": 660,
"height": 640,
"content": "## Track Competitor Listing Prices on Etsy\n\nMonitor the current prices of selected public Etsy listings and detect changes without OAuth, a database, or a third-party scraping service. This workflow uses Etsy's official Open API and stores the previous snapshot in n8n workflow static data.\n\n### How it works\n- A manual or scheduled trigger starts the price check.\n- **Configuration (EDIT ME)** accepts one or more numeric Etsy listing IDs and an optional minimum percentage change.\n- One public batch request fetches the current listing details.\n- The workflow normalizes Etsy Money values, compares them with the previous production run, and reports price changes or unavailable listings.\n- The first production run creates the baseline; later runs perform comparisons.\n\n### Setup\n1. Create an Etsy developer app and copy its keystring and shared secret.\n2. In **Fetch public Etsy listings**, create a Header Auth credential. Set the header name to `x-api-key` and the value to `KEYSTRING:SHARED_SECRET`.\n3. Add competitor listing IDs in **Configuration (EDIT ME)**. You can find each numeric ID in its Etsy URL.\n4. Activate the workflow. The default schedule runs every six hours.\n\n### Customization tips\nChange the schedule, raise the percentage threshold to ignore small changes, or connect **Price change alerts** to Slack, email, Telegram, or Google Sheets.\n"
},
"typeVersion": 1
},
{
"id": "fetch-section-sticky",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-60,
220
],
"parameters": {
"color": 7,
"width": 1080,
"height": 440,
"content": "## 1. Configure and fetch listings\nRun manually or on schedule, enter up to 100 listing IDs, and fetch their current public data from Etsy in one authenticated batch request.\n"
},
"typeVersion": 1
},
{
"id": "compare-section-sticky",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1080,
220
],
"parameters": {
"color": 7,
"width": 900,
"height": 440,
"content": "## 2. Compare and route changes\nSave a baseline inside n8n, compare prices on later production runs, and route meaningful changes to the alert output.\n"
},
"typeVersion": 1
}
],
"settings": {
"executionOrder": "v1"
},
"connections": {
"Changes found?": {
"main": [
[
{
"node": "Price change alerts",
"type": "main",
"index": 0
}
],
[
{
"node": "Baseline or no changes",
"type": "main",
"index": 0
}
]
]
},
"Check every 6 hours": {
"main": [
[
{
"node": "Configuration (EDIT ME)",
"type": "main",
"index": 0
}
]
]
},
"Run tracker manually": {
"main": [
[
{
"node": "Configuration (EDIT ME)",
"type": "main",
"index": 0
}
]
]
},
"Configuration (EDIT ME)": {
"main": [
[
{
"node": "Build Etsy batch request",
"type": "main",
"index": 0
}
]
]
},
"Build Etsy batch request": {
"main": [
[
{
"node": "Fetch public Etsy listings",
"type": "main",
"index": 0
}
]
]
},
"Fetch public Etsy listings": {
"main": [
[
{
"node": "Compare prices with previous run",
"type": "main",
"index": 0
}
]
]
},
"Compare prices with previous run": {
"main": [
[
{
"node": "Changes found?",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
This workflow runs on a schedule (or manually) to fetch public Etsy listing details in a single batch request, stores a baseline snapshot in n8n, and alerts you when listing prices change beyond a configurable percentage threshold. Runs either manually or every 6 hours on a…
Source: https://n8n.io/workflows/16420/ — original creator credit. Request a take-down →
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