# Distill URL or HTML with BM25 Budget Control

> Distill URL or HTML with BM25 Budget Control is a paid API for AI agents from 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 compact Markdown, structured JSON, skeleton outlines, or BM25-ranked token-budget excerpts for LLM consumption

## Facts

- Endpoint: POST https://agentdiet.dev/v1/rag-diet?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: agentdiet.dev
- Website: https://agentdiet.dev
- Canonical page: https://www.zero.xyz/c/agentdiet-dev-distill-url-or-html-with-bm25-budget-control-8f66b30d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ru7MoCixh2zqe76se4L9k

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 agentdiet-dev-distill-url-or-html-with-bm25-budget-control-8f66b30d -d '<json body>'
```

Example prompt: Distill the content at https://stripe.com/docs/payments/accept-a-payment into clean markdown, keeping it under 500 tokens and focusing on the parts about payment intents.

## When to prefer this

Choose this endpoint when you need to feed web content into an LLM pipeline at minimal token cost, especially when a strict token budget is required (budget mode with BM25 ranking). It is ideal for RAG preprocessing, agentic web browsing with cost controls, or when you need structured JSON tables extracted from HTML rather than raw text. Prefer it over generic scrapers when token savings, compression metrics, and ROI proof are important signals for your pipeline.

## Known failure modes

- Invalid or unreachable URL returns an error status
- max_tokens below minimum of 20 is rejected with a validation error
- BM25 budget mode without a query may return unfiltered or degraded results
- HTML payloads that are too large may be truncated or time out
- Payment failure via x402 will block execution and return a 402 response
- Paywalled or bot-blocked pages may return empty or partial content

## How this service works

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

## Output

Returns a JSON object containing distilled content (Markdown, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt depending on mode), along with an ROI proof block showing raw vs distilled token counts, compression ratio, tokens saved, estimated LLM cost savings, and ROI multiplier. 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/agentdiet-dev-distill-url-or-html-with-bm25-budget-control-8f66b30d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdiet.dev](https://www.zero.xyz/host/agentdiet.dev/llms.txt)