# Web Distillation with BM25 Budget Control

> Web Distillation with BM25 Budget Control is a paid API for AI agents from mcp-compiler.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).

Fetches and distills a URL or raw HTML into compressed markdown, structured data, a skeleton outline, or a BM25-focused token-budgeted excerpt

## Facts

- Endpoint: POST https://mcp-compiler.agentdiet.dev/v1/distill?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: mcp-compiler.agentdiet.dev
- Website: https://mcp-compiler.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/mcp-compiler-agentdiet-dev-web-distillation-with-bm25-budget-control-56b55cd3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_I3pboMXjJMGiIaevekKxq

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 mcp-compiler-agentdiet-dev-web-distillation-with-bm25-budget-control-56b55cd3 -d '<json body>'
```

Example prompt: Can you distill https://stripe.com/docs/payments into compressed markdown and keep it under 2000 tokens, focusing on the query 'payment intents API' using budget mode?

## When to prefer this

Choose this endpoint when you need to compress webpage content before passing it to an LLM to save tokens and cost, especially when you want BM25-focused budget control to keep only the most query-relevant content. It is ideal over generic scrapers when token efficiency and LLM cost reduction are priorities. Prefer budget mode when you have strict context window constraints, structured mode when you need machine-readable tables or metadata, and skeleton mode when you only need the document's top-level outline.

## Known failure modes

- URL is unreachable or returns non-200 — distillation fails with a fetch error
- Raw HTML is malformed or empty — distillation may return empty or partial output
- max_tokens set too low (below 20) — validation error returned
- BM25 query not provided when mode=budget — may fall back to default or return error
- Payment not authorized via x402 — 402 Payment Required response
- Rate limiting or network timeout on remote URL — transient failure

## How this service works

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

## Output

Returns a `data` object containing distilled content (markdown text, structured JSON tables/metadata, a skeleton outline, or a BM25-focused excerpt depending on mode), plus an `roi_proof` object with raw vs distilled token counts, compression ratio percentage, tokens saved, ROI multiplier, and estimated LLM cost saved in USD. Also includes cache status (HIT/MISS) 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/mcp-compiler-agentdiet-dev-web-distillation-with-bm25-budget-control-56b55cd3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-compiler.agentdiet.dev](https://www.zero.xyz/host/mcp-compiler.agentdiet.dev/llms.txt)