# Web URL & HTML Prompt Compressor with BM25 Budget Control

> Web URL & HTML Prompt Compressor with BM25 Budget Control is a paid API for AI agents from mesh.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a URL or accepts raw HTML and distills it into compact, agent-ready tokens using configurable modes including BM25-ranked budget excerpts

## Facts

- Endpoint: GET https://mesh.agentdiet.dev/v1/prompt-compress?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: mesh.agentdiet.dev
- Website: https://mesh.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/mesh-agentdiet-dev-web-url-html-prompt-compressor-with-bm25-budget-271b5ba7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J4M6FI6LiceL3r-KOurCS

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 mesh-agentdiet-dev-web-url-html-prompt-compressor-with-bm25-budget-271b5ba7
```

Example prompt: Can you distill https://stripe.com/docs/api into compact markdown under 1000 tokens, focusing on the query 'payment intents' so I don't burn my context window?

## When to prefer this

Choose this endpoint when you need to feed web page content into an LLM but want to minimize token usage and cost. Especially valuable when the target page is verbose (docs, wikis, news articles) and you need either a clean markdown summary, structured tables, a lightweight skeleton, or a BM25-ranked excerpt focused on a specific query. Prefer over raw fetching when token budget is a constraint or when you need ROI proof of compression savings.

## Known failure modes

- Invalid or unreachable URL returns an error status
- URL behind a login wall or bot protection may return incomplete content
- max_tokens ceiling too low to contain meaningful content
- mode=budget without a query falls back to default behavior
- Raw HTML too large may time out or be truncated
- Payment not resolved results in HTTP 402 response

## How this service works

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

## Output

Returns a 'data' object containing distilled content in the requested format (markdown, structured JSON, skeleton, or BM25 excerpt), along with an ROI proof object showing raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, and llm_cost_saved_usd. 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/mesh-agentdiet-dev-web-url-html-prompt-compressor-with-bm25-budget-271b5ba7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mesh.agentdiet.dev](https://www.zero.xyz/host/mesh.agentdiet.dev/llms.txt)