## Json

**post** `/extract/json`

Fetches a URL and extracts structured data according to a provided JSON schema

### Body Parameters

- `json_schema: unknown`

  JSON schema definition that describes the structure of data to extract.

- `url: string`

  URL to fetch and extract data from

- `effort: optional "min" or "standard" or "max"`

  Fetch effort level controlling speed vs. capability tradeoff. "min": fastest, no fallback (1-5s). "standard": balanced with enhanced reliability (default, 3-15s). "max": full browser rendering for JS-heavy sites (15-60s).

  - `"min"`

  - `"standard"`

  - `"max"`

- `geo_target: optional object { country }`

  Optional geotargeting parameters for proxy requests

  - `country: optional string`

    Country code using ISO 3166-1 alpha-2 standard (2 letters, e.g., "US", "GB", "JP").
    See: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2

- `nocache: optional boolean`

  Bypass cache and force fresh data retrieval

### Example

```http
curl https://api.tabstack.ai/v1/extract/json \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $TABSTACK_API_KEY" \
    -d '{
          "json_schema": {
            "properties": {
              "stories": {
                "items": {
                  "properties": {
                    "author": {
                      "description": "Author username",
                      "type": "string"
                    },
                    "points": {
                      "description": "Story points",
                      "type": "number"
                    },
                    "title": {
                      "description": "Story title",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": "array"
              }
            },
            "type": "object"
          },
          "url": "https://news.ycombinator.com",
          "effort": "standard"
        }'
```