# SPA Markdown Reader with BM25 Budget Control

> SPA Markdown Reader with BM25 Budget Control is a paid API for AI agents from domain-osint.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).

Fetches a URL or processes raw HTML and distills it into Markdown, structured JSON, skeleton outline, or a BM25-ranked token-budget excerpt for LLM consumption

## Facts

- Endpoint: POST https://domain-osint.agentdiet.dev/v1/spa-markdown-reader?utm_source=zero.xyz
- Price: $0.001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: domain-osint.agentdiet.dev
- Website: https://domain-osint.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/domain-osint-agentdiet-dev-spa-markdown-reader-with-bm25-budget-control-208a6707
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YF8UiPB6ZUgTCsenQhMWJ

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 domain-osint-agentdiet-dev-spa-markdown-reader-with-bm25-budget-control-208a6707 -d '<json body>'
```

Example prompt: Fetch the page at https://stripe.com/docs/payments and distill it into clean markdown, keeping it under 2000 tokens — focus on anything related to payment intents.

## When to prefer this

Use this endpoint when you need to feed web content to an LLM and want to minimize token usage through compression or BM25 relevance filtering. It is especially valuable for SPA pages that require JavaScript rendering, when you have a strict token budget, or when you want structured/skeleton extraction rather than raw HTML. Prefer this over generic scrapers when you need built-in ROI metrics on token savings and compression ratios.

## Known failure modes

- URL is unreachable or returns non-200 HTTP status — endpoint may return an error status
- JavaScript-heavy SPA pages may fail to render fully if the fetch timeout is exceeded
- BM25 budget mode with very low max_tokens may return extremely truncated or empty excerpts
- Raw HTML input exceeds payload size limits — may result in a rejection or truncation
- Invalid mode enum value causes a validation error
- Missing required 'url' field returns a 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://domain-osint.agentdiet.dev/v1/spa-markdown-reader)

## Output

Returns a JSON object with a 'data' field containing distilled Markdown, structured JSON tables/metadata, skeleton outline, or a BM25-ranked excerpt depending on mode. Also includes an 'roi_proof' object showing raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, roi_multiplier, and llm_cost_saved_usd. Optional cache status (HIT/MISS) and billing details are also returned.

## 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/domain-osint-agentdiet-dev-spa-markdown-reader-with-bm25-budget-control-208a6707/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from domain-osint.agentdiet.dev](https://www.zero.xyz/host/domain-osint.agentdiet.dev/llms.txt)