# Get new Mercari Japan listings and price drops

**Use case:** 

Watches a Mercari Japan search with a watch list. The first run returns the newest 120 items. Every later run with the same watch list name returns only new listings and items whose price, title or status changed, for example sold, with the old value. Run it on a schedule, for example every hour; change the keyword to what you collect.

## Input

```json
{
  "searches": [
    "ポケモンカード ミュウ"
  ],
  "status": "on_sale",
  "sort": "newest",
  "maxItemsPerSearch": 120,
  "maxItemsPerSeller": 60,
  "scrapeDetails": false,
  "translateTitles": false,
  "maxConcurrency": 5,
  "watchName": "mercari new listings"
}
```

## Output

```json
{
  "change": {
    "label": "Change",
    "format": "text"
  },
  "changed_fields": {
    "label": "What changed",
    "format": "array"
  },
  "previous": {
    "label": "Before",
    "format": "object"
  },
  "type": {
    "label": "Row",
    "format": "text"
  },
  "source_query": {
    "label": "Search",
    "format": "text"
  },
  "item_id": {
    "label": "Item id",
    "format": "text"
  },
  "title": {
    "label": "Title",
    "format": "text"
  },
  "price": {
    "label": "Price, JPY",
    "format": "number"
  },
  "status": {
    "label": "Status",
    "format": "text"
  },
  "url": {
    "label": "Link",
    "format": "link"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The Mercari Japan Scraper: Search, Items & Sellers in English Actor is ready to run with the inputs already set for "Get new Mercari Japan listings and price drops". [Sign up or log in](https://console.apify.com/create-task-from-example/HbA1rFWpGAbSta84D) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Get new Mercari Japan listings and price drops" task

The Mercari Japan Scraper: Search, Items & Sellers in English Actor will start running based on the input automatically. You can also change all the input fields, like searches, items on sale or sold, and more, to match your specific use case.

### 3. Receive the "Get new Mercari Japan listings and price drops" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as change, what changed, before, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Get new Mercari Japan listings and price drops" task via API](https://apify.com/maksim_lazouski/mercari-japan-scraper.md).

## FAQ

### How does the Mercari watch task know what is new?

It keeps what the last run with the same watch list name saw in your Apify account and compares: rows are marked new or changed, with the old values in the field previous.

### How do I run it every hour?

Save the task in your Apify account and add a schedule. Keep the same watch list name: a new name starts a new list.

### Do I pay for items that did not change?

No. Unchanged items are not stored and not charged.

## About this Actor

This example demonstrates how to use [Mercari Japan Scraper: Search, Items & Sellers in English](https://apify.com/maksim_lazouski/mercari-japan-scraper.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/maksim_lazouski/mercari-japan-scraper.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/maksim_lazouski/mercari-japan-scraper.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).