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Web URL Prompt Compressor with BM25 Budget Control
Web URL Prompt Compressor with BM25 Budget Control is a paid API for AI agents from polymarket-odds.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).
Fetches a webpage or raw HTML and distills it into compact, agent-ready tokens using markdown, structured, skeleton, or BM25 budget modes.
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://polymarket-odds.agentdiet.dev/v1/prompt-compress)
Output
Returns a distilled payload containing the compressed content (markdown, structured tables/metadata, skeleton outline, or BM25-focused excerpt), plus an ROI proof object showing raw vs distilled token counts, compression ratio, tokens saved, and estimated LLM cost savings. Also includes cache hit/miss status and billing details.
Example use cases
Fit API docs into LLM context
“Grab https://docs.openai.com/api-reference and compress it into structured markdown under 1000 tokens so I can reference it in my next GPT-4 call.”
BM25 focus-extract from a news article
“Go to https://techcrunch.com/2025/05/01/some-article and distill it in budget mode with the query 'AI funding rounds' keeping it under 300 tokens — I just want the relevant bits.”
Skeleton outline of a long report
“Distill https://www.mckinsey.com/some-long-report into skeleton mode so I get just the headings and section structure without all the body text.”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/prompt-compress?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to reduce the token footprint of a webpage before injecting it into an LLM prompt, especially when working with long documentation pages, articles, or reports. It is particularly valuable when operating under strict context window limits or cost constraints, since it provides BM25 query-focused extraction and a measurable ROI proof. Prefer this over generic scrapers when you specifically need token-budget-aware compression with multiple output modes (markdown, structured, skeleton, budget).
Side effects
- Invalid or unreachable URL returns an error status
- Pages behind authentication or paywalls may return incomplete content
- mode=budget without a query parameter may yield suboptimal BM25 results
- max_tokens set too low may produce truncated or uninformative output
- Rate limiting or payment failure (x402) may block the request
- Raw HTML that is malformed may degrade distillation quality
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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