# Semantic HTML Pruner — Web URL Distillation API

> Semantic HTML Pruner — Web URL Distillation API is a paid API for AI agents from workflows.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).

Fetches and compresses a webpage or raw HTML into compact, agent-ready tokens using BM25-ranked budget control and multiple extraction modes

## Facts

- Endpoint: GET https://workflows.agentdiet.dev/v1/semantic-html-pruner?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: workflows.agentdiet.dev
- Website: https://workflows.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/workflows-agentdiet-dev-semantic-html-pruner-web-url-distillation-api-faf9d16f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f2w5GOSHYEwWgImHFkkk_

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 workflows-agentdiet-dev-semantic-html-pruner-web-url-distillation-api-faf9d16f
```

Example prompt: Distill https://stripe.com/docs/payments into compact markdown, use budget mode with the query 'payment intents' and cap it at 2000 tokens so I can include it in my prompt without blowing my context window.

## When to prefer this

Choose this endpoint when an AI agent needs to ingest web content but must stay within a token budget, wants BM25-ranked relevance filtering over a specific query, or needs structured/skeleton extraction rather than raw HTML. It is especially valuable when fetching documentation, competitive intelligence pages, or research articles where most HTML is noise. Prefer it over generic scrapers when token efficiency and LLM cost savings are priorities.

## Known failure modes

- Invalid or unreachable URL returns an error status instead of distilled content
- max_tokens set below 20 is rejected as out of range
- mode=budget without a query may return less focused results
- Raw HTML too large may exceed processing limits
- Paywalled or JavaScript-heavy pages may yield poor extraction quality
- Missing required 'url' parameter returns a validation error

## How this service works

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

## Output

Returns a JSON object with a 'data' field containing the distilled content (Markdown, structured tables/metadata, skeleton outline, or BM25-ranked excerpt depending on mode), plus an 'roi_proof' object showing raw vs distilled token counts, compression ratio percentage, tokens saved, and estimated LLM cost saved in USD. Also includes 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/workflows-agentdiet-dev-semantic-html-pruner-web-url-distillation-api-faf9d16f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workflows.agentdiet.dev](https://www.zero.xyz/host/workflows.agentdiet.dev/llms.txt)