# AgentDiet Prompt Compress

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

Compresses and semantically distills a web page URL into a token-efficient representation by stripping 85-97% of HTML bloat

## Facts

- Endpoint: GET https://agentdiet.dev/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/agentdiet-prompt-compress-dbaf3d7e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c_YtIEdk2dYpwoDrTHXk6

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-prompt-compress-dbaf3d7e
```

Example prompt: Can you compress the content at https://example.com/long-article into a token-efficient distilled version so I can fit it into my prompt without all the HTML noise?

## When to prefer this

Choose this endpoint when you need to feed web page content into an LLM prompt and need to drastically reduce token count without losing semantic meaning. Ideal for agent pipelines that need to ingest many web pages efficiently, or when context window limits are a bottleneck. Prefer this over raw scraping endpoints when token efficiency is the primary concern.

## Known failure modes

- Invalid or unreachable URL returns an error or empty response
- Pages behind authentication or paywalls may not be accessible
- Very dynamic JavaScript-rendered pages may not yield complete content
- Rate limiting or payment failure if the x402 micropayment is not processed
- Malformed query parameters result in schema validation errors

## 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/prompt-compress)

## Output

Returns a semantically distilled, token-compressed version of the target web page with 85-97% of HTML token bloat removed, preserving meaningful content while dramatically reducing size for LLM context window consumption.

## 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-prompt-compress-dbaf3d7e/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)