# AgentDiet SPA Markdown Reader – Web URL Distiller

> AgentDiet SPA Markdown Reader – Web URL Distiller 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 a web URL (or raw HTML) and distills it into compact, agent-ready Markdown, structured JSON, a skeleton outline, or a BM25-budgeted excerpt with token savings reporting.

## Facts

- Endpoint: GET https://workflows.agentdiet.dev/v1/spa-markdown-reader?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-agentdiet-spa-markdown-reader-web-url-distiller-1c573d69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tiY_lqOYyy3sBepFSa4gO

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-agentdiet-spa-markdown-reader-web-url-distiller-1c573d69
```

Example prompt: Can you fetch https://stripe.com/docs/payments/accept-a-payment and distill it into compact markdown, keeping it under 1000 tokens and focusing on the query 'accept payment integration'?

## When to prefer this

Choose this endpoint when an AI agent needs to read a live webpage but must stay within a token budget or minimize LLM context costs. It is particularly valuable over raw HTML fetching when the page is long, JavaScript-heavy (SPA), or when only a topically relevant portion is needed via BM25 query focus. Prefer it over generic scrapers when you need structured JSON tables or skeleton outlines in addition to plain markdown, and when you need proof of token savings for cost accounting.

## Known failure modes

- Invalid or unreachable URL returns an error status
- Pages with heavy JavaScript that cannot be server-side rendered may return empty or partial content
- Exceeding the max_tokens ceiling may truncate content unexpectedly
- BM25 budget mode with a vague or missing query may return low-relevance excerpts
- Payment/402 failure if x402 credentials are missing or insufficient USDC balance
- Very large HTML payloads may exceed processing limits or increase latency

## 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/spa-markdown-reader)

## Output

Returns a JSON object with a 'data' field containing the distilled content (Markdown text, structured tables/metadata, skeleton outline, or BM25-trimmed excerpt depending on mode), plus an 'roi_proof' object showing raw vs. distilled token counts, compression ratio, tokens saved, and estimated LLM cost saved in USD. Also includes cache status (HIT/MISS) and billing metadata.

## 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-agentdiet-spa-markdown-reader-web-url-distiller-1c573d69/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)