# Public Product Change Tracker from Sitemaps and Feeds

**Use case:** 

Track public product changes from sitemaps and RSS feeds. Get data on price, stock, availability, and seller with source evidence.

## Input

```json
{
  "watchlistTerms": [
    "find public product with source evidence",
    "public product feed monitor",
    "universal actor portfolio",
    "ecommerce",
    "sitemap",
    "rss",
    "csv-feed",
    "json-feed"
  ],
  "taskIntent": "validate-buyer-fit",
  "sourceMode": "sample",
  "outputMode": "buyer-ready-records",
  "startUrls": [],
  "maxItems": 10,
  "perSourceLimit": 25,
  "maxTotalChargeUsd": 5,
  "overallTimeoutSecs": 900,
  "requestTimeoutSecs": 30,
  "maxRequestRetries": 2,
  "sinceLastRun": false,
  "deltaMode": true
}
```

## Output

```json
{
  "productName": {
    "label": "Product Name",
    "format": "string"
  },
  "marketplace": {
    "label": "Marketplace",
    "format": "string"
  },
  "sellerName": {
    "label": "Seller Name",
    "format": "string"
  },
  "offerUrl": {
    "label": "Offer Url",
    "format": "string"
  },
  "price": {
    "label": "Price",
    "format": "number"
  },
  "currency": {
    "label": "Currency",
    "format": "string"
  },
  "inStock": {
    "label": "In Stock",
    "format": "boolean"
  },
  "stockStatus": {
    "label": "Stock Status",
    "format": "string"
  },
  "recordId": {
    "label": "Record id",
    "format": "string"
  },
  "sourceName": {
    "label": "Source name",
    "format": "string"
  },
  "sourceUrl": {
    "label": "Source URL",
    "format": "string"
  },
  "score": {
    "label": "Score",
    "format": "number"
  },
  "confidence": {
    "label": "Confidence",
    "format": "number"
  },
  "retrievedAt": {
    "label": "Retrieved at",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [Public Product Feed Monitor](https://apify.com/zentrafoundry/public-product-feed-monitor) with a specific input configuration. Visit the [Actor detail page](https://apify.com/zentrafoundry/public-product-feed-monitor) to learn more, explore other use cases, and run it yourself.