# x402broker Prompt Compress (AgentDiet /v1/distill)

> x402broker Prompt Compress (AgentDiet /v1/distill) is a paid API for AI agents from x402broker.com, paid per call via x402 or MPP, $0.001/call, status unknown (last checked 2026-10-20).

Fetches a URL and compresses its HTML content by stripping 85-97% of token bloat, returning a semantically distilled, agent-ready version of the page.

## Facts

- Endpoint: GET https://x402broker.com/v1/prompt-compress?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402broker-prompt-compress-agentdiet-v1-distill-55aefbc4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bBHkjsyBjzRGM-jh5xxV9

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 x402broker-prompt-compress-agentdiet-v1-distill-55aefbc4
```

Example prompt: Can you fetch https://example.com/article and compress it down using AgentDiet distillation so I get a clean, token-efficient version I can actually use in my prompt?

## When to prefer this

Choose this endpoint when you need to fetch a URL and dramatically reduce its token footprint before using the content in an LLM prompt. It is ideal for agent pipelines where context window budget is a constraint and raw HTML is too noisy. Prefer it over generic scrapers when token efficiency and semantic fidelity are both important, especially for documentation pages, articles, and product pages.

## Known failure modes

- URL is unreachable or returns a non-200 status — distillation fails with an error
- Paywalled or login-required pages return partial or no content
- Highly JavaScript-rendered SPAs may not yield meaningful static content
- Invalid or malformed URL input results in a validation error
- Rate limiting or upstream timeout causes request failure

## How this service works

Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/prompt-compress)

## Output

Returns a semantically distilled version of the requested web page with 85-97% of HTML token bloat removed, leaving only the meaningful textual content suitable for injection into an LLM context window.

## 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/x402broker-prompt-compress-agentdiet-v1-distill-55aefbc4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)