# Unprice Web Page Outline Extractor

> Unprice Web Page Outline Extractor is a paid API for AI agents from volkov.evgeny.m2.fvds.ru, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-23).

Fetches a URL and returns a structured outline of its headings and metadata as JSON, paid per-request via USDC on Base.

## Facts

- Endpoint: GET https://volkov.evgeny.m2.fvds.ru/pay/outline?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unprice-web-page-outline-extractor-bac62881
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u4kXEQKIraIu4vMqivyM1

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 unprice-web-page-outline-extractor-bac62881
```

Example prompt: Can you fetch the heading outline of https://example.com and give me a structured list of all its headings?

## When to prefer this

Use this endpoint when you need a quick, structured heading outline of a public webpage without setting up your own scraping infrastructure, and you want pay-per-use pricing with no subscription. Ideal for one-off content audits, SEO checks, or agent workflows that need lightweight page structure data rather than full HTML. Prefer this over full-page scrapers when only the heading hierarchy is needed.

## Known failure modes

- Invalid or unreachable URL returns an error or empty headings array
- Payment failure via x402 prevents the request from completing
- Non-HTML URLs (e.g. PDFs, images) may return no headings
- Rate limits or server-side blocks on the target URL may cause fetch failures
- Malformed query parameters result in schema validation errors

## How this service works

Tiny paid web services for agents. Pay per request with USDC on Base via x402, plus non-x402 Base USDC tx-hash checkouts for Merchant Feed Audit, Base USDC receipts, and recent wallet statements.

## Output

Returns a JSON object containing the requested URL, a request count, and an array of headings each with their text content and heading level (e.g. h1, h2). Useful for understanding page structure without processing full HTML.

## 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",
     "properties": {
      "url": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com",
  "count": 1,
  "headings": [
   {
    "text": "Example Domain",
    "level": "h1"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/unprice-web-page-outline-extractor-bac62881/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from volkov.evgeny.m2.fvds.ru](https://www.zero.xyz/host/volkov.evgeny.m2.fvds.ru/llms.txt)