# Web URL Context Trimmer & Distiller

> Web URL Context Trimmer & Distiller is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches a webpage URL (or raw HTML) and compresses it into compact, agent-ready tokens using BM25 budget control and multiple distillation modes

## Facts

- Endpoint: GET https://serp-extract.agentdiet.dev/v1/context-trimmer?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: serp-extract.agentdiet.dev
- Website: https://serp-extract.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/serp-extract-agentdiet-dev-web-url-context-trimmer-distiller-abd39cb3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5WB2RLacyqLsLJMF7wq9v

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 serp-extract-agentdiet-dev-web-url-context-trimmer-distiller-abd39cb3
```

Example prompt: Distill the content at https://docs.stripe.com/payments/payment-intents into compact markdown — use budget mode with a 1500 token ceiling and focus on 'payment intent lifecycle' so I can pass it to another model without blowing my context window.

## When to prefer this

Choose this endpoint when you need to pass web page content to an LLM but want to minimize token usage and cost — especially when working with long documentation pages, news articles, or product pages. The BM25 budget mode is uniquely useful when you have a specific query focus and a hard token ceiling. Prefer this over general-purpose scrapers when compression ratio and token savings are first-class concerns, or when you want structured JSON tables extracted rather than raw HTML.

## Known failure modes

- Invalid or unreachable URL returns an error status
- max_tokens below minimum of 20 is rejected
- mode=budget without a query may return unfiltered budget excerpt
- Raw HTML too large may time out or be truncated
- Paywalled or JavaScript-rendered pages may return incomplete content
- Missing required url parameter returns validation error

## How this service works

Distill a web URL into compact agent-ready tokens (Live x402 v2, IETF MPP & MCP endpoint at https://serp-extract.agentdiet.dev/v1/context-trimmer)

## Output

Returns a distilled version of the webpage in the requested mode (markdown, structured JSON, skeleton outline, or BM25 budget excerpt), along with an roi_proof object showing raw token count, distilled token count, tokens saved, compression ratio percentage, estimated LLM cost saved in USD, and an ROI multiplier. Also includes 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 distill (or builtin://stripe-docs)"
  },
  "mode": {
   "enum": [
    "markdown",
    "structured",
    "skeleton",
    "budget"
   ],
   "type": "string",
   "default": "markdown",
   "description": "Extraction mode: markdown, structured, skeleton, or budget"
  },
  "limit": {
   "type": "integer",
   "default": 20,
   "maximum": 100,
   "minimum": 1,
   "description": "Maximum number of items to return per page (1-100)"
  },
  "query": {
   "type": "string",
   "description": "BM25 focus query when mode=budget"
  },
  "cursor": {
   "type": "string",
   "description": "Opaque pagination cursor for fetching the next page"
  },
  "max_tokens": {
   "type": "integer",
   "minimum": 20,
   "description": "Strict token 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/serp-extract-agentdiet-dev-web-url-context-trimmer-distiller-abd39cb3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from serp-extract.agentdiet.dev](https://www.zero.xyz/host/serp-extract.agentdiet.dev/llms.txt)