# Turn any web page into typed JSON for your AI agent (with a source quote for every value)

> Source: <https://dev.to/s3nafps/turn-any-web-page-into-typed-json-for-your-ai-agent-with-a-source-quote-for-every-value-39lb>
> Published: 2026-10-17 01:48:24+00:00

LLM agents are great at reasoning and bad at reading messy HTML. The usual fix is a custom scraper per site, which breaks every time the site changes.

[Webpage to JSON for AI Agents](https://apify.com/s3nafps/webpage-to-json-for-ai-agents) takes a URL and a plain-English description of the fields you want, and returns typed JSON. Every value comes with a quote from the page, so you can check it isn't made up.

**Input:**

```
{
  "urls": ["https://books.toscrape.com/catalogue/a-light-in-the-attic_1000/index.html"],
  "instruction": "Extract the book title, price as a number, currency code, and whether it is in stock."
}
```

**Output (real run):**

```
{
  "data": { "title": "A Light in the Attic", "price": 51.77, "currencyCode": "GBP", "inStock": true },
  "evidence": { "title": "# A Light in the Attic", "price": "£51.77" },
  "unverifiedFields": []
}
```

**Useful options**

`extractionSchema` when you need an exact shape.`listMode: true` to get many records from one page, such as product grids or job boards.`requireEvidence` is on by default. A value without a source quote is flagged in `unverifiedFields`.
**Call it from code**

``` python
from apify_client import ApifyClient
client = ApifyClient("<YOUR_APIFY_TOKEN>")
run = client.actor("s3nafps/webpage-to-json-for-ai-agents").call(run_input={
    "urls": ["https://example.com/pricing"],
    "instruction": "List each plan with name, monthly price and included seats."
})
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item["data"])
```

**Use it as an MCP tool:** add `https://mcp.apify.com/?actors=s3nafps/webpage-to-json-for-ai-agents` to Claude, Cursor or any MCP client, and your agent can call it directly.

The LLM cost is included. You pay $0.03 per page with data and nothing for pages where no data was found.