# Web URL to Markdown Distiller with BM25 Budget Control

> Web URL to Markdown Distiller with BM25 Budget Control is a paid API for AI agents from x402-audit.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a URL or raw HTML and converts it into compact, token-efficient Markdown or structured output with optional BM25-based focus filtering and strict token budget enforcement.

## Facts

- Endpoint: GET https://x402-audit.agentdiet.dev/v1/docs-to-markdown?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: x402-audit.agentdiet.dev
- Website: https://x402-audit.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/x402-audit-agentdiet-dev-web-url-to-markdown-distiller-with-bm25-2c347f1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B5deQ2jZQIsAEvLb2IZtN

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 x402-audit-agentdiet-dev-web-url-to-markdown-distiller-with-bm25-2c347f1b
```

Example prompt: Can you fetch https://docs.stripe.com/api and distill it into compact markdown using budget mode, focusing on 'payment intents' and keeping it under 2000 tokens?

## When to prefer this

Choose this endpoint when your agent needs to consume web content or documentation with minimal token overhead — especially when feeding external URLs into an LLM context window. It is ideal when you need BM25-targeted excerpts (mode=budget) to retrieve only the most relevant passages from a large page, or when you want structured tables and metadata (mode=structured) rather than raw HTML. Prefer it over generic scrapers when token cost and compression ratio are first-class concerns, or when you need built-in ROI proof of how many tokens were saved.

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status — endpoint may return an error status
- HTML is malformed or too large to process within the token budget
- mode=budget requires both query and max_tokens; omitting either may produce unfiltered output
- Paywalled or JavaScript-rendered pages may yield incomplete or empty content
- Invalid URL format causes immediate validation failure
- Token budget set below 20 triggers schema validation error

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://x402-audit.agentdiet.dev/v1/docs-to-markdown)

## Output

Returns a distilled payload containing the converted content (Markdown text, structured JSON tables/metadata, a skeleton outline, or a BM25-filtered excerpt), plus an roi_proof object with raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, roi_multiplier, and llm_cost_saved_usd. Also includes optional 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/x402-audit-agentdiet-dev-web-url-to-markdown-distiller-with-bm25-2c347f1b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-audit.agentdiet.dev](https://www.zero.xyz/host/x402-audit.agentdiet.dev/llms.txt)