# Semantic HTML Pruner – Web URL Distillation

> Semantic HTML Pruner – Web URL Distillation is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a webpage (or accepts raw HTML) and compresses it into compact, agent-ready tokens using configurable distillation modes including BM25 budget-controlled extraction

## Facts

- Endpoint: GET https://x402broker.com/v1/semantic-html-pruner?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: x402broker.com
- Website: https://x402broker.com
- Canonical page: https://www.zero.xyz/c/x402broker-com-semantic-html-pruner-web-url-distillation-a67dc1d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CMeuuMiHY2GfsRf03n1Xz

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 x402broker-com-semantic-html-pruner-web-url-distillation-a67dc1d7
```

Example prompt: Can you distill https://stripe.com/docs/payments into compact markdown within a 500-token budget, focusing the BM25 query on 'payment intents' so I can feed just the relevant content to my model?

## When to prefer this

Choose this endpoint when you need to feed web content into an LLM but want to minimize token usage and cost. It is particularly valuable when working with long documentation pages, news articles, or any HTML-heavy source where boilerplate, navigation, and ads inflate token counts. Prefer it over raw fetch-and-pass approaches whenever context window size or per-token LLM cost is a concern, or when you need BM25-ranked focused extraction around a specific query rather than the full page.

## Known failure modes

- Invalid or unreachable URL returns an error status
- Paywalled or bot-blocked pages may return empty or partial content
- max_tokens set too low may produce truncated or empty output
- query parameter missing when mode=budget reduces BM25 ranking quality
- Raw HTML input that is malformed may produce garbled distillation
- Rate limiting or payment failure via x402 protocol blocks the request

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/semantic-html-pruner)

## Output

Returns a JSON object with a 'data' field containing the distilled content (Markdown text, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt depending on mode), along with an 'roi_proof' object showing raw vs. distilled token counts, compression ratio percentage, tokens saved, ROI multiplier, and estimated LLM cost saved in USD. Also includes optional cache hit/miss status and billing info.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "minLength": 1,
   "description": "Target webpage URL to fetch and distill (or builtin://stripe-docs)"
  },
  "html": {
   "type": "string",
   "description": "Optional raw HTML string to distill directly without fetching"
  },
  "mode": {
   "enum": [
    "markdown",
    "structured",
    "skeleton",
    "budget"
   ],
   "type": "string",
   "default": "markdown",
   "description": "Distillation mode"
  },
  "query": {
   "type": "string",
   "description": "BM25 focus query when mode=budget"
  },
  "max_tokens": {
   "type": "integer",
   "minimum": 20,
   "description": "Strict token budget ceiling when mode=budget"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "status",
  "roi_proof",
  "data"
 ],
 "properties": {
  "data": {
   "type": "object",
   "description": "Distilled Markdown, structured JSON tables/metadata, skeleton outline, or BM25 budget excerpt."
  },
  "cache": {
   "type": "object",
   "properties": {
    "status": {
     "enum": [
      "HIT",
      "MISS"
     ],
     "type": "string"
    },
    "cache_key": {
     "type": "string"
    },
    "latency_ms": {
     "type": "number"
    }
   }
  },
  "status": {
   "type": "string",
   "description": "Execution status ('ok')"
  },
  "billing": {
   "type": "object",
   "properties": {
    "agent_id": {
     "type": "string"
    },
    "payment_method": {
     "type": "string"
    },
    "fee_charged_usd": {
     "type": "number"
    }
   }
  },
  "roi_proof": {
   "type": "object",
   "properties": {
    "raw_tokens": {
     "type": "integer"
    },
    "tokens_saved": {
     "type": "integer"
    },
    "roi_multiplier": {
     "type": "number"
    },
    "distilled_tokens": {
     "type": "integer"
    },
    "llm_cost_saved_usd": {
     "type": "number"
    },
    "compression_ratio_pct": {
     "type": "number"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-com-semantic-html-pruner-web-url-distillation-a67dc1d7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)