# Extract schema.org JSON-LD and custom fields from a page

**Use case:** 

Reads a page's schema.org JSON-LD (articles, products, recipes, events) plus any fields you name with CSS selectors, and returns them as JSON. This example pulls the Article JSON-LD, headline and first paragraph from a Wikipedia page. Use it to check structured data or feed pages to an agent.

## Input

```json
{
  "urls": [
    "https://en.wikipedia.org/wiki/Alan_Turing"
  ],
  "extract": {
    "headline": "h1",
    "firstParagraph": "#mw-content-text p:not(.mw-empty-elt)"
  }
}
```

## Output

```json
{
  "url": {
    "label": "URL",
    "format": "string"
  },
  "status": {
    "label": "Status",
    "format": "string"
  },
  "ok": {
    "label": "OK",
    "format": "boolean"
  },
  "fetchedAt": {
    "label": "Fetched",
    "format": "string"
  },
  "data.title": {
    "label": "Title",
    "format": "text"
  },
  "data.canonical": {
    "label": "Canonical",
    "format": "link"
  },
  "data.content.wordCount": {
    "label": "Words",
    "format": "number"
  },
  "error.code": {
    "label": "Error",
    "format": "text"
  }
}
```

## How it works

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

The Web Page to JSON & JSON-LD Extractor Actor is ready to run with the inputs already set for "Extract schema.org JSON-LD and custom fields from a page". [Sign up or log in](https://console.apify.com/create-task-from-example/hVfDJG8Un8ANgbDeT) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Extract schema.org JSON-LD and custom fields from a page" task

The Web Page to JSON & JSON-LD Extractor Actor will start running based on the input automatically. You can also change all the input fields, like URLs and extra fields (optional), to match your specific use case.

### 3. Receive the "Extract schema.org JSON-LD and custom fields from a page" 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 URL, status, OK, 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 "Extract schema.org JSON-LD and custom fields from a page" task via API](https://apify.com/miacx/page-to-json.md).

## FAQ

### What does the JSON-LD extraction task return?

The JSON-LD extraction task returns each page's parsed JSON-LD blocks, metadata, clean text and the custom fields you defined in extract.

### How do custom fields work in the JSON-LD extraction task?

The JSON-LD extraction task takes up to 50 named CSS selectors in extract, such as {"headline":"h1"}. A selector with no match returns null.

### Does the JSON-LD extraction task validate structured data?

The JSON-LD extraction task returns what the page publishes. It doesn't check it against Google's rich result rules.

## About this Actor

This example demonstrates how to use [Web Page to JSON & JSON-LD Extractor](https://apify.com/miacx/page-to-json.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/miacx/page-to-json.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/miacx/page-to-json.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`).