# RAG Diet — URL/HTML Distiller with BM25 Budget Control

> RAG Diet — URL/HTML Distiller with BM25 Budget Control is a paid API for AI agents from workflows.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown.

Fetches a URL or accepts raw HTML and distills it into compact, agent-ready tokens using one of four modes (markdown, structured, skeleton, or BM25 budget-capped excerpt).

## Facts

- Endpoint: POST https://workflows.agentdiet.dev/v1/rag-diet?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Activations on Zero: 0
- Provider: workflows.agentdiet.dev
- Website: https://workflows.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/workflows-agentdiet-dev-rag-diet-url-html-distiller-with-bm25-budget-4ba20f15
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1qQRJByNu2sMzNAzAR1Mp

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 workflows-agentdiet-dev-rag-diet-url-html-distiller-with-bm25-budget-4ba20f15 -d '<json body>'
```

Example prompt: Distill https://stripe.com/docs/payments into compact markdown using budget mode, focused on 'payment intents', and keep it under 500 tokens.

## When to prefer this

Choose this endpoint when you need to reduce the token footprint of a webpage or raw HTML before feeding it to an LLM, especially when you want BM25-guided relevance filtering with a hard token budget ceiling. It is better than generic scrapers when LLM cost optimization and compression ratio measurement matter, or when you need structured output modes (markdown, tables, skeleton) rather than raw HTML text.

## Known failure modes

- URL is unreachable or returns non-200 — fetch error returned
- HTML payload is empty or malformed — distillation may return minimal output
- mode=budget used without a 'query' field — BM25 scoring has no focus signal
- max_tokens set below 20 — validation error
- Invalid or expired x402 payment — 402 Payment Required response
- URL is behind authentication or a bot wall — content may be inaccessible

## How this service works

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

## Output

Returns a JSON object with a 'data' field containing the distilled content (markdown, structured JSON, skeleton, or BM25 excerpt), an 'roi_proof' object showing raw token count, distilled token count, tokens saved, compression ratio %, ROI multiplier, and estimated LLM cost saved in USD, plus 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/workflows-agentdiet-dev-rag-diet-url-html-distiller-with-bm25-budget-4ba20f15/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workflows.agentdiet.dev](https://www.zero.xyz/host/workflows.agentdiet.dev/llms.txt)