# Web URL Distillation & BM25 Budget Extraction

> Web URL Distillation & BM25 Budget Extraction is a paid API for AI agents from shopify-spy.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a webpage (or accepts raw HTML) and distills it into compact, agent-ready markdown, structured JSON, skeleton outline, or BM25-focused token-budgeted excerpts

## Facts

- Endpoint: GET https://shopify-spy.agentdiet.dev/v1/paywall-clean-extract?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: shopify-spy.agentdiet.dev
- Website: https://shopify-spy.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-spy-agentdiet-dev-web-url-distillation-bm25-budget-extraction-d9dd7e03
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xe8XcRu__HcTZTzT0rWZ0

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 shopify-spy-agentdiet-dev-web-url-distillation-bm25-budget-extraction-d9dd7e03
```

Example prompt: Fetch https://stripe.com/docs/payments and distill it into compact markdown — I want to keep it under 800 tokens, so use budget mode with the query 'payment intents API'.

## When to prefer this

Choose this endpoint when an AI agent needs to read web content but must stay within token budget constraints, or when you want to strip boilerplate and extract clean, structured content from arbitrary URLs without building your own scraping pipeline. Particularly valuable when LLM context costs matter and you want quantified ROI proof of compression savings. Prefer over generic scrapers when BM25 query-focused relevance filtering or multiple distillation modes (markdown, structured, skeleton, budget) are needed.

## Known failure modes

- URL is unreachable or returns non-200 HTTP status — endpoint may return an error status
- HTML payload is malformed or too large — distillation may fail or truncate
- max_tokens set too low (below 20) — validation error returned
- BM25 query provided without mode=budget — query parameter ignored silently
- Rate limiting or payment failure via x402 — 402 response requiring payment
- JavaScript-heavy SPAs may not render dynamic content — static HTML only fetched

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://shopify-spy.agentdiet.dev/v1/paywall-clean-extract)

## Output

Returns a JSON object with a 'data' field containing the distilled content (markdown text, structured JSON tables, skeleton outline, or BM25-focused excerpt depending on mode), an 'roi_proof' object showing raw vs distilled token counts, compression ratio, tokens saved, and estimated LLM cost saved in USD, plus optional cache hit/miss metadata and billing details.

## 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/shopify-spy-agentdiet-dev-web-url-distillation-bm25-budget-extraction-d9dd7e03/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-spy.agentdiet.dev](https://www.zero.xyz/host/shopify-spy.agentdiet.dev/llms.txt)