---
title: "AI Web Scraper API: Extract JSON from Any URL · Best AI Scraper"
description: "Extract structured JSON from any web page with AI. Describe the fields, get typed results. Free playground, pay-as-you-go credits, no subscription."
canonical_url: "https://bestaiscraper.com/extract"
meta:
  "og:description": "Extract structured JSON from any web page with AI. Describe the fields, get typed results. Free playground, pay-as-you-go credits, no subscription."
  "og:title": "AI Web Scraper API: Extract JSON from Any URL · Best AI Scraper"
---

> Index of every page on this site: [llms.txt](https://bestaiscraper.com/llms.txt)

**BestAIScraper API**

# **Turn any web page into JSON**

Name the fields you want in plain English. We fetch the page, an AI model extracts the fields, and a second model checks every value against the page. You get typed JSON plus a confidence score for each field. No selectors, no subscription.

RequestPOST /api/v1/extract

```
{
  "url": "https://books.toscrape.com/catalogue/a-light-in-the-attic_1000/index.html",
  "fields": {
    "title": "string",
    "price": "number — price in GBP",
    "in_stock": "boolean",
    "rating": "number — star rating 1-5",
    "description": "string — one sentence summary"
  },
  "many": false
}
```

## **Typed, schema-valid output**

Output is constrained to your schema: numbers come back as numbers, missing values as null. You never get malformed JSON.

## **Every field verified**

Each value is checked against the page for invented, misplaced or badly formatted data. Doubtful results are automatically re-run on a stronger model.

## **Records or lists**

Pull one record from a product page, or every item from a listing, search result or feed, in a single call.

## **Pay for what you use**

Credits are metered on actual model tokens. Failed fetches and failed extractions are refunded automatically.

## **One request**

Same call from your code, a cron job, or an AI agent. Full reference in the [API docs](https://bestaiscraper.com/docs).

[**Get an API key**](https://bestaiscraper.com/pricing)

```
curl https://bestaiscraper.com/api/v1/extract \
  -H "Authorization: Bearer $BAS_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://books.toscrape.com/catalogue/a-light-in-the-attic_1000/index.html",
    "fields": {
      "title": "string",
      "price": "number — price in GBP",
      "in_stock": "boolean"
    }
  }'

# → { "data": { "title": "A Light in the Attic", "price": 51.77, "in_stock": true },
#     "confidence": { "title": 0.99, "price": 0.98, "in_stock": 0.97 }, ... }
```

## **Is it the right tool for you?**

We don't render JavaScript or rotate proxies yet, so single-page apps and heavily protected sites may not work. For those, see our comparison of [scraping APIs](https://bestaiscraper.com/best/web-scraping-apis): Firecrawl, ScrapingBee and Zyte handle them well.

```json
{"@context":"https://schema.org","@graph":[{"@id":"https://bestaiscraper.com/#website","@type":"WebSite","description":"Independent comparisons of AI web scraping tools, plus a pay-as-you-go AI extraction API.","name":"Best AI Scraper","url":"https://bestaiscraper.com/","publisher":{"@id":"https://bestaiscraper.com/#identity"}},{"@id":"https://bestaiscraper.com/extract#webpage","@type":"WebPage","description":"Extract structured JSON from any web page with AI. Describe the fields, get typed results. Free playground, pay-as-you-go credits, no subscription.","name":"AI Web Scraper API: Extract JSON from Any URL","url":"https://bestaiscraper.com/extract","isPartOf":{"@id":"https://bestaiscraper.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://bestaiscraper.com/extract"]}]},{"@id":"https://bestaiscraper.com/#identity","@type":"Organization","name":"Best AI Scraper","url":"https://bestaiscraper.com"},{"@id":"https://bestaiscraper.com/extract#/schema/software-application/1","@type":"SoftwareApplication","applicationCategory":"DeveloperApplication","name":"BestAIScraper API","operatingSystem":"Web","offers":{"@type":"Offer","price":"9","priceCurrency":"USD"}}]}
```

## Sitemap

See the full [sitemap](https://bestaiscraper.com/sitemap.md) for all pages.