# RAG Diet — BM25 Budget-Controlled Web Distiller

> RAG Diet — BM25 Budget-Controlled Web Distiller is a paid API for AI agents from json-repair.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 payload into compact, agent-ready tokens using BM25-ranked budget control and multiple distillation modes

## Facts

- Endpoint: POST https://json-repair.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: json-repair.agentdiet.dev
- Website: https://json-repair.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/json-repair-agentdiet-dev-rag-diet-bm25-budget-controlled-web-distiller-08f21b56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8XhaeNYXTK7S29b89wmDc

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 json-repair-agentdiet-dev-rag-diet-bm25-budget-controlled-web-distiller-08f21b56 -d '<json body>'
```

Example prompt: Fetch https://stripe.com/docs/payments and distill it using budget mode with the query 'payment intents' and a strict ceiling of 500 tokens, then show me the compressed markdown.

## When to prefer this

Choose this endpoint when you need to compress web pages or HTML payloads into a strict token budget before feeding them into an LLM or RAG pipeline, especially when you want BM25-ranked relevance filtering against a specific query. It is particularly valuable when LLM context costs are a concern and you need measurable ROI proof (compression ratio, tokens saved, cost saved). Prefer it over generic scrapers when you need multiple output modes (markdown, structured, skeleton, budget) and built-in token accounting.

## Known failure modes

- URL is unreachable or returns non-200 status — service may return an error status
- HTML payload is malformed or empty — distillation may fail or return minimal content
- mode=budget used without a query field — BM25 ranking has no focus term
- max_tokens set below minimum of 20 — request rejected by schema validation
- Payment not authorized via x402 — 402 Payment Required response blocks execution
- Target URL blocks bots or requires authentication — fetched content may be incomplete

## How this service works

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

## Output

Returns a JSON object containing distilled content (Markdown, structured JSON, skeleton outline, or BM25-filtered excerpt depending on mode), ROI proof metrics (raw token count, distilled token count, tokens saved, compression ratio percentage, LLM cost saved in USD, ROI multiplier), optional cache status (HIT/MISS), and billing details including fee charged.

## 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/json-repair-agentdiet-dev-rag-diet-bm25-budget-controlled-web-distiller-08f21b56/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from json-repair.agentdiet.dev](https://www.zero.xyz/host/json-repair.agentdiet.dev/llms.txt)