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Distill URL or HTML with BM25 Budget Control
Distill URL or HTML with BM25 Budget Control is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown.
Fetches a URL or accepts raw HTML and compresses it into a token-efficient representation using BM25 ranking with a strict token budget ceiling
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://serp-extract.agentdiet.dev/v1/prompt-compress)
Output
Returns a data object containing the distilled content (markdown, structured JSON, skeleton outline, or BM25-ranked budget excerpt), plus an roi_proof block with raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, roi_multiplier, and llm_cost_saved_usd. Also includes cache status (HIT/MISS) and billing details.
Example use cases
LLM cost reduction for research
“Grab the content from https://openai.com/research/gpt-4 and compress it into budget mode focused on 'safety evaluation', capped at 1000 tokens — I want to feed it into my pipeline without blowing the context window.”
Structured data extraction from product page
“Take this raw HTML from our competitor's pricing page and distill it in structured mode so I get clean JSON tables of their pricing tiers and features — here's the HTML: <html>...</html>.”
Skeleton outline for site audit
“Fetch https://docs.anthropic.com/claude and return a skeleton outline of the page structure so I can understand how their documentation is organized without reading the full content.”
Technical details
Endpoint
POSThttps://serp-extract.agentdiet.dev/v1/prompt-compress?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to compress a specific URL or raw HTML into a token-budget-constrained excerpt using BM25 relevance ranking — especially when you have a focused query topic and a strict token ceiling. It is ideal for LLM pipeline cost reduction where you want to feed only the most relevant page content into a downstream model. Prefer it over generic web scrapers when you need quantified ROI metrics (tokens saved, compression ratio) alongside the distilled content.
Side effects
- URL is unreachable or returns non-200 — fetch fails with error status
- HTML payload is malformed — distillation may be incomplete or empty
- max_tokens set below minimum of 20 — rejected with validation error
- query missing when mode=budget — BM25 ranking cannot proceed
- Rate limiting or payment failure via x402 — request blocked
- Idempotency-Key collision with different parameters — may return cached mismatched result
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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