# 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 alpha-stream.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a URL or raw HTML and distills it into compact, agent-ready Markdown, structured JSON, skeleton outline, or BM25-focused token-budgeted excerpts

## Facts

- Endpoint: GET https://alpha-stream.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: alpha-stream.agentdiet.dev
- Website: https://alpha-stream.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/alpha-stream-agentdiet-dev-web-url-to-markdown-distiller-with-bm25-4ba70b4e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wENGxuLCUZEjed5W4Fa3U

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 alpha-stream-agentdiet-dev-web-url-to-markdown-distiller-with-bm25-4ba70b4e
```

Example prompt: Grab the Stripe docs page at https://stripe.com/docs/api/charges and distill it into clean markdown, keeping it under 2000 tokens and focusing on the 'create a charge' content.

## When to prefer this

Choose this endpoint when you need to feed web content into an LLM context window efficiently and want automatic token compression with measurable ROI. Ideal for agent pipelines that need to stay within token budgets, or when you want to extract structured data or a skeleton outline from a page rather than raw HTML. Particularly valuable when working with large documentation pages, research articles, or any URL where boilerplate and navigation noise would otherwise waste tokens. Use the budget mode with a query when you need BM25-ranked relevance filtering.

## Known failure modes

- Invalid or unreachable URL returns an error status
- URL blocked by robots.txt or CORS restrictions causes fetch failure
- max_tokens set too low may produce severely truncated output
- BM25 query mode without a query string may fall back to full markdown
- Raw HTML too large may exceed processing limits
- Payment not completed (HTTP 402) if x402 micropayment is not handled

## How this service works

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

## Output

Returns a JSON object containing the distilled content (Markdown, structured JSON tables/metadata, skeleton outline, or BM25-focused excerpt depending on mode), plus ROI proof metrics showing raw vs. distilled token counts, tokens saved, compression ratio percentage, estimated LLM cost savings, and optional cache 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/alpha-stream-agentdiet-dev-web-url-to-markdown-distiller-with-bm25-4ba70b4e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha-stream.agentdiet.dev](https://www.zero.xyz/host/alpha-stream.agentdiet.dev/llms.txt)