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

> RAG Token Diet — URL/HTML Distiller with BM25 Budget Control is a paid API for AI agents from hn-pulse.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).

Fetches a URL or accepts raw HTML and distills it into compact Markdown, structured JSON, skeleton outline, or BM25-ranked token-budget excerpt for LLM consumption

## Facts

- Endpoint: POST https://hn-pulse.agentdiet.dev/v1/rag-token-diet?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: hn-pulse.agentdiet.dev
- Website: https://hn-pulse.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/hn-pulse-agentdiet-dev-rag-token-diet-url-html-distiller-with-bm25-7b08968b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1MDL_vgu8a6INBv66dblA

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 hn-pulse-agentdiet-dev-rag-token-diet-url-html-distiller-with-bm25-7b08968b -d '<json body>'
```

Example prompt: Can you distill https://stripe.com/docs/payments into clean markdown using budget mode, focused on 'payment intents', and keep it under 500 tokens so I can feed it to my RAG pipeline without blowing my context window?

## When to prefer this

Choose this endpoint when you need to feed live web content or raw HTML into an LLM pipeline and must stay within a token budget. It is ideal for RAG ingestion workflows where noise removal and compression ratio matter, especially when you want verifiable ROI metrics (tokens saved, cost saved). Prefer budget mode with a BM25 query when you need only topically relevant passages from a long page. Prefer structured or skeleton mode when you want navigable, machine-readable output rather than prose markdown.

## Known failure modes

- URL is unreachable or returns non-200 status — endpoint may error or return empty data
- Raw HTML is malformed or empty — distillation may produce minimal output
- mode=budget used without a query field — BM25 ranking has no focus signal
- max_tokens set below minimum of 20 — validation error returned
- URL behind authentication/paywall — content not accessible for distillation
- Very large pages may hit internal processing limits before returning

## How this service works

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

## Output

A JSON object containing: distilled content under 'data' (Markdown text, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt depending on mode); an 'roi_proof' object showing raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, roi_multiplier, and llm_cost_saved_usd; a 'cache' object with HIT/MISS status and latency; and a 'billing' object with the fee charged in USD.

## 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/hn-pulse-agentdiet-dev-rag-token-diet-url-html-distiller-with-bm25-7b08968b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hn-pulse.agentdiet.dev](https://www.zero.xyz/host/hn-pulse.agentdiet.dev/llms.txt)