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Web URL & HTML Distillation with BM25 Budget Control
Web URL & HTML Distillation with BM25 Budget Control is a paid API for AI agents from preflight.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).
Fetches and distills a web URL or raw HTML into compact, agent-ready tokens using configurable extraction modes and optional BM25 budget control
Price / call$0.001
Success—
StatusUnknown
How this service works
Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://preflight.agentdiet.dev/v1/article-extractor)
Output
Returns a JSON object with a 'data' field containing the distilled content (Markdown text, structured JSON tables/metadata, skeleton outline, or BM25-ranked excerpt depending on mode), plus an 'roi_proof' object showing raw token count, distilled token count, tokens saved, compression ratio percentage, ROI multiplier, and estimated LLM cost saved in USD. Also includes cache status (HIT/MISS) and billing details.
Example use cases
Token-efficient research from live web
“I need to read this long documentation page without blowing my token budget — can you distill https://stripe.com/docs/payments into markdown and cap it at 800 tokens?”
Focused BM25 excerpt for a specific question
“Fetch https://en.wikipedia.org/wiki/Transformer_(machine_learning_model) and extract only the parts relevant to 'attention mechanism', keeping it under 300 tokens in budget mode.”
Structured data extraction from a webpage
“Pull the tables and metadata from https://finance.yahoo.com/quote/AAPL into structured JSON format so I can see the key financial figures.”
Technical details
Endpoint
GEThttps://preflight.agentdiet.dev/v1/article-extractor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to read a webpage or HTML document but must minimize token usage or LLM cost. It is especially valuable when using mode=budget with a BM25 query to extract only the most relevant passages from a long page, or mode=structured to pull tables and metadata into JSON. Prefer it over generic scrapers when token compression ratio and cost savings are explicit requirements, or when the agent is operating under a strict context-window budget.
Side effects
- URL is unreachable or returns a non-200 HTTP status — endpoint may return an error status
- max_tokens set below 20 — rejected by schema validation
- mode=budget used without a query — BM25 ranking may fall back to generic compression
- HTML payload too large — may be truncated or time out
- Paywalled or JavaScript-rendered pages may return minimal content
- Payment not provided — returns HTTP 402 requiring x402 micropayment
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | Target webpage URL to fetch and distill (or builtin://stripe-docs) |
| html | string | Optional raw HTML string to distill directly without fetching |
| mode | string | Distillation mode |
| query | string | BM25 focus query when mode=budget |
| max_tokens | integer | Strict token budget ceiling when mode=budget |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | Distilled Markdown, structured JSON tables/metadata, skeleton outline, or BM25 budget excerpt. |
| cache | object | |
| statusrequired | string | Execution status ('ok') |
| billing | object | |
| roi_proofrequired | object |
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