# AgentDiet Web Distill – BM25 Budget-Controlled HTML/URL Distillation

> AgentDiet Web Distill – BM25 Budget-Controlled HTML/URL Distillation is a paid API for AI agents from agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).

Fetches and distills a URL or raw HTML into compressed Markdown, structured JSON, a skeleton outline, or a BM25-ranked token-budget excerpt, returning ROI proof of tokens saved.

## Facts

- Endpoint: POST https://agentdiet.dev/v1/distill?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: agentdiet.dev
- Website: https://agentdiet.dev
- Canonical page: https://www.zero.xyz/c/agentdiet-dev-agentdiet-web-distill-bm25-budget-controlled-html-url-91bbff36
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-YTcwBRHgjIX0jfSwuS80

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 agentdiet-dev-agentdiet-web-distill-bm25-budget-controlled-html-url-91bbff36 -d '<json body>'
```

Example prompt: Distill the content at https://stripe.com/docs/payments into compressed markdown mode and then also give me a BM25-focused budget excerpt about 'payment intents' with a max of 300 tokens — I want to see how many tokens you saved.

## When to prefer this

Choose this endpoint when an AI agent needs to ingest web page content but must stay within a token budget or minimize LLM costs — especially for long documentation pages, research articles, or HTML dumps. The BM25 budget mode is uniquely suited for query-focused extraction when only a portion of a page is relevant. Prefer this over generic scrapers when token ROI proof and compression metrics matter to the downstream workflow, or when you need structured JSON tables rather than raw HTML.

## Known failure modes

- URL unreachable or returns non-200 HTTP — endpoint may return an error status
- HTML too large or malformed — distillation may be incomplete or fail
- BM25 query missing when mode=budget — defaults may apply or error returned
- max_tokens below minimum of 20 — validation error
- Payment/402 failure — billing not resolved, request rejected
- Invalid mode enum value — schema 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://agentdiet.dev/v1/distill)

## Output

Returns a JSON object with: `data` containing the distilled content (Markdown string, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt depending on mode); `roi_proof` with raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, roi_multiplier, and llm_cost_saved_usd; optional `cache` hit/miss status and latency; optional `billing` with fee charged in USD; and `status` ('ok') on success.

## 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/agentdiet-dev-agentdiet-web-distill-bm25-budget-controlled-html-url-91bbff36/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdiet.dev](https://www.zero.xyz/host/agentdiet.dev/llms.txt)