# Web URL to Agent-Ready RAG Chunks (BM25 Budget Control)

> Web URL to Agent-Ready RAG Chunks (BM25 Budget Control) is a paid API for AI agents from defi-yield.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches and distills a webpage URL or raw HTML into compact, token-efficient Markdown, structured JSON, skeleton outlines, or BM25-focused budget excerpts for AI agent consumption.

## Facts

- Endpoint: GET https://defi-yield.agentdiet.dev/v1/rag-chunk?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: defi-yield.agentdiet.dev
- Website: https://defi-yield.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/defi-yield-agentdiet-dev-web-url-to-agent-ready-rag-chunks-bm25-f7a88699
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NH47hplEwT4Z_TqLtT2sG

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 defi-yield-agentdiet-dev-web-url-to-agent-ready-rag-chunks-bm25-f7a88699
```

Example prompt: Distill the content at https://stripe.com/docs/payments into compact markdown, keeping it under 800 tokens and focusing on 'payment intents'.

## When to prefer this

Choose this endpoint when you need to feed live web content into an LLM or RAG pipeline without blowing your token budget — especially when you need BM25-ranked relevance filtering, multiple output modes (markdown/structured/skeleton/budget), and a built-in ROI proof showing exactly how many tokens were saved. Prefer it over generic scrapers when token efficiency and agent-readiness (not raw HTML) are the primary goals.

## Known failure modes

- Invalid or unreachable URL returns an error status and no data
- HTML too large or malformed may result in incomplete distillation
- mode=budget without a query or max_tokens may produce suboptimal chunking
- Rate limiting or payment failure (HTTP 402) blocks the request
- Some pages behind authentication or bot-protection will not be fetchable
- max_tokens set below 20 is rejected by schema validation

## How this service works

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

## Output

Returns a JSON object containing the distilled content in the requested format (Markdown text, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt), plus an ROI proof block showing raw vs. distilled token counts, tokens saved, compression ratio percentage, LLM cost saved in USD, and a 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/defi-yield-agentdiet-dev-web-url-to-agent-ready-rag-chunks-bm25-f7a88699/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi-yield.agentdiet.dev](https://www.zero.xyz/host/defi-yield.agentdiet.dev/llms.txt)