# Context Bloat Eliminator – BM25-Budgeted Web Distillation

> Context Bloat Eliminator – BM25-Budgeted Web Distillation is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).

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

## Facts

- Endpoint: POST https://serp-extract.agentdiet.dev/v1/context-bloat-eliminator?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-context-bloat-eliminator-bm25-budgeted-web-7bc138b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ayK_tqYeb4ssng8YUGTza

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-context-bloat-eliminator-bm25-budgeted-web-7bc138b2 -d '<json body>'
```

Example prompt: Distill this URL https://stripe.com/docs/api into clean Markdown using budget mode, focused on 'payment intents', and cap the output at 500 tokens so I can see how many tokens we saved versus the raw page.

## When to prefer this

Choose this endpoint when you need to feed webpage content into an LLM pipeline and want to minimize token consumption and cost. It is especially valuable when the raw HTML is large and noisy (ads, navigation, footers) and you need only the signal. The BM25 budget mode is ideal when you have a specific query focus and a hard token ceiling. Prefer this over generic scrapers when you need built-in ROI proof (tokens saved, cost saved) alongside the distilled content.

## Known failure modes

- URL is unreachable or returns non-200 HTTP status — endpoint may return an error status
- Raw HTML is malformed or empty — distillation may produce minimal or empty output
- mode=budget requires a query and max_tokens; omitting them may fall back to defaults or error
- Token budget too low (below 20) triggers schema validation failure
- BM25 query too vague returns low-relevance excerpt with poor ROI multiplier
- Paywalled or JS-rendered pages may yield thin or incomplete distilled content

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://serp-extract.agentdiet.dev/v1/context-bloat-eliminator)

## Output

Returns a `data` object containing the distilled content in the requested format (Markdown text, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt), plus an `roi_proof` block showing raw token count, distilled token count, tokens saved, compression ratio percentage, ROI multiplier, 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/serp-extract-agentdiet-dev-context-bloat-eliminator-bm25-budgeted-web-7bc138b2/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)