# Web Distillation & BM25 Budget-Controlled Prompt Compression

> Web Distillation & BM25 Budget-Controlled Prompt Compression is a paid API for AI agents from sec-intel.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-24).

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

## Facts

- Endpoint: POST https://sec-intel.agentdiet.dev/v1/prompt-compress?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-24
- 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-distillation-bm25-budget-controlled-a9217f7e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jDOBLEGonS8yJaPJMZ_Mr

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-distillation-bm25-budget-controlled-a9217f7e -d '<json body>'
```

Example prompt: Fetch https://stripe.com/docs/payments and distill it into budget mode with the query 'payment intents' and a max token ceiling of 500 tokens, so I can feed just the relevant parts to my LLM without blowing my context window.

## When to prefer this

Choose this endpoint when you need to feed live web content or large HTML documents into an LLM context window while minimizing token cost and maximizing relevance. It is uniquely suited for agentic RAG pipelines where you need BM25-ranked, query-focused excerpts within a strict token budget, or when you want clean Markdown/structured JSON from a URL rather than raw HTML. Prefer it over generic scrapers when ROI proof (tokens saved, cost saved) is needed for auditing, or when the target is Stripe documentation via the built-in alias.

## Known failure modes

- URL is unreachable or returns non-200 — distillation fails with an error status
- max_tokens too low to produce meaningful content — may return minimal or empty excerpt
- HTML input is malformed beyond recovery — structured/skeleton modes may degrade
- BM25 query returns no relevant passages within token budget — sparse excerpt returned
- x402 payment not fulfilled — 402 response blocks execution
- Rate limits or upstream fetch timeouts for slow target URLs

## 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/prompt-compress)

## Output

Returns a JSON object with a 'data' field containing the distilled content (Markdown string, 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 'status' field ('ok'), optional 'cache' metadata (HIT/MISS, latency_ms), and optional '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-distillation-bm25-budget-controlled-a9217f7e/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)