# Web URL Context Distiller (BM25 Budget Mode)

> Web URL Context Distiller (BM25 Budget Mode) is a paid API for AI agents from sec-intel.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a URL or raw HTML and distills it into compact, agent-ready tokens using markdown, structured, skeleton, or BM25-focused budget mode

## Facts

- Endpoint: GET https://sec-intel.agentdiet.dev/v1/context-diet?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: sec-intel.agentdiet.dev
- Website: https://sec-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/sec-intel-agentdiet-dev-web-url-context-distiller-bm25-budget-mode-5b7572ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0jOtPE1A6zmT23sfg5M0B

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 sec-intel-agentdiet-dev-web-url-context-distiller-bm25-budget-mode-5b7572ed
```

Example prompt: Distill the content at https://stripe.com/docs/api into compact markdown, keeping it under 800 tokens and focusing on authentication — I need it clean and agent-ready without all the bloat.

## When to prefer this

Choose this endpoint when an AI agent needs to ingest live web content but must stay within a strict token budget — especially when the raw page is large, noisy, or HTML-heavy. The BM25 budget mode is uniquely useful for query-focused extraction where only topic-relevant passages should survive. Prefer it over generic scrapers when you need built-in compression metrics (ROI proof, compression ratio) and when the agent pipeline is token-cost-sensitive. Also ideal for feeding live documentation pages (e.g. Stripe docs via builtin://stripe-docs) into agent context without overwhelming the LLM.

## Known failure modes

- URL is unreachable or returns non-200 — fetch fails with error status
- HTML payload too large to process within service limits
- Invalid mode enum value provided — defaults to markdown or returns validation error
- max_tokens below minimum of 20 when mode=budget — schema validation error
- BM25 query empty with mode=budget — results may be unfiltered
- Payment not authorized — HTTP 402 returned if x402 micropayment fails
- Target site blocks automated fetching (bot protection, CAPTCHA)

## How this service works

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

## Output

Returns a distilled content object (markdown, structured JSON, skeleton outline, or BM25 budget excerpt), plus an ROI proof block showing raw vs distilled token counts, tokens saved, compression ratio percentage, LLM cost saved in USD, and 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/sec-intel-agentdiet-dev-web-url-context-distiller-bm25-budget-mode-5b7572ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sec-intel.agentdiet.dev](https://www.zero.xyz/host/sec-intel.agentdiet.dev/llms.txt)