# Monitor Rare US Postage Stamp Listings & Prices

**Use case:** 

Track newly listed rare United States stamps to identify investment opportunities or pricing shifts. Gain a competitive edge by staying informed on the most sou

## Input

```json
{
  "mode": "search",
  "searchQuery": "penny black",
  "category": "153",
  "sellerCountry": "",
  "listingType": "any",
  "condition": [],
  "stampType": [],
  "stampFormat": [],
  "centering": [],
  "hasCertificate": "any",
  "certificateGrade": [],
  "showOnly": [
    "free_shipping"
  ],
  "yearFrom": 1840,
  "yearTo": 1940,
  "priceMin": 500,
  "sortBy": "started_desc",
  "listingIds": [],
  "sellerHandle": "red-fox-stamps",
  "fetchDetails": true,
  "maxItems": 40,
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}
```

## Output

```json
{
  "title": {
    "label": "Title"
  },
  "price": {
    "label": "Price"
  },
  "discountPercent": {
    "label": "Discount percent"
  },
  "priceType": {
    "label": "Price type"
  },
  "condition": {
    "label": "Condition"
  },
  "country": {
    "label": "Country"
  },
  "sellerUsername": {
    "label": "Seller username"
  },
  "listingUrl": {
    "label": "Listing url"
  }
}
```

## About this Actor

This example demonstrates how to use [HipStamp Scraper](https://apify.com/crawlerbros/hipstamp-scraper) with a specific input configuration. Visit the [Actor detail page](https://apify.com/crawlerbros/hipstamp-scraper) to learn more, explore other use cases, and run it yourself.


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If asked about integration, you help developers integrate Actors into their projects.
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This Task's input is already configured above — use it as-is rather than inventing a new one.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
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For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/crawlerbros/hipstamp-scraper.md

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).