# Web Field Extractor

> Web Field Extractor is a paid API for AI agents from 164.160.90.241.sslip.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Extracts named fields (e.g. price, SKU, availability, email, phone) from a public web page as structured JSON, reading JSON-LD, meta tags, microdata, spec tables, definition lists, and label-value text patterns.

## Facts

- Endpoint: GET https://164.160.90.241.sslip.io/api/web-extract-fields?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-field-extractor-bf640820
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jlJ6TsOIiJV8j79O8OuuG

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability web-field-extractor-bf640820
```

Example prompt: Can you extract the price, SKU, and availability from this product page — https://www.example.com/product/widget-pro — and return them as JSON?

## When to prefer this

Choose this endpoint when you need to extract specific named fields from a known web page URL without writing custom parsers. It is especially useful for e-commerce product pages with structured markup (JSON-LD, microdata) or pages with labeled text patterns. Prefer it over generic page-to-markdown conversion when you need machine-readable key-value output with source attribution rather than full-text content.

## Known failure modes

- URL is not publicly accessible or requires authentication — no data returned
- Requested fields not found on the page — fields returned with null values
- JavaScript-rendered content not captured unless render=true is set — missing dynamic data
- More than 25 fields requested — request rejected
- Page returns non-200 HTTP status — extraction fails
- Malformed or non-HTTP URL provided — validation error

## How this service works

Extract named fields from a web page as JSON (e.g. price, sku, availability, email, phone). Reads JSON-LD, meta tags, microdata, spec tables, definition lists and 'Label: value' text; returns value, source and alternatives per field plus all candidate key/value pairs.

## Output

Returns a JSON object where each requested field name maps to its extracted value, the source (e.g. JSON-LD, meta tag, microdata, spec table, definition list, or label-value text), and a list of alternative candidate values found on the page. Also includes a full list of all candidate key-value pairs discovered on the page.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url",
      "fields"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Public http(s) URL"
      },
      "fields": {
       "type": "string",
       "description": "Comma-separated field names, up to 25"
      },
      "render": {
       "type": "boolean",
       "description": "true to render with headless browser first"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/web-field-extractor-bf640820/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 164.160.90.241.sslip.io](https://www.zero.xyz/host/164.160.90.241.sslip.io/llms.txt)