# Web URL Distiller with BM25 Budget Control

> Web URL Distiller with BM25 Budget Control is a paid API for AI agents from prompt-guard.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches and distills a web URL or raw HTML into compact, agent-ready tokens using configurable extraction modes and optional BM25-based budget trimming

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/web-scrape?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: prompt-guard.agentdiet.dev
- Website: https://prompt-guard.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/prompt-guard-agentdiet-dev-web-url-distiller-with-bm25-budget-control-247ee8c7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T5i-Z7M-gWahoaQIpXz-p

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 prompt-guard-agentdiet-dev-web-url-distiller-with-bm25-budget-control-247ee8c7
```

Example prompt: Can you fetch https://stripe.com/docs/payments and distill it into a tight markdown summary under 800 tokens, focusing on payment intents?

## When to prefer this

Choose this endpoint when you need to bring live web content into an LLM context window with minimal token overhead — especially when you have a strict token budget (use mode=budget with a query and max_tokens), want structured extraction (tables, metadata), or need a quick skeleton outline. It is purpose-built for agent workflows where every token costs money, providing ROI proof on each call. Prefer it over generic scrapers when compression ratio and cost tracking matter.

## Known failure modes

- Invalid or unreachable URL returns an error status
- Paywalled or JavaScript-heavy pages may yield empty or partial content
- max_tokens below 20 is rejected with a validation error
- mode=budget without a query may produce unoptimized output
- Rate limits or payment failures return 402 or relevant HTTP error codes
- HTML-only mode fails if neither URL nor html is supplied

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://prompt-guard.agentdiet.dev/v1/web-scrape)

## Output

Returns a 'data' object containing the distilled content in the requested format (Markdown, structured JSON, skeleton outline, or BM25-trimmed excerpt), along with ROI proof metrics (raw token count, distilled token count, tokens saved, compression ratio percentage, and estimated LLM cost saved in USD), cache hit/miss status, 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/prompt-guard-agentdiet-dev-web-url-distiller-with-bm25-budget-control-247ee8c7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prompt-guard.agentdiet.dev](https://www.zero.xyz/host/prompt-guard.agentdiet.dev/llms.txt)