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Web URL Context Compressor
Web URL Context Compressor 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 and distills a web URL (or raw HTML) into compact, agent-ready tokens using BM25 budget control and multiple extraction 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/context-compress)
Output
Returns a 'data' object containing the distilled content (markdown text, structured JSON tables/metadata, skeleton outline, or BM25-focused excerpt depending on mode), plus an 'roi_proof' object showing raw vs distilled token counts, tokens saved, compression ratio percentage, LLM cost saved in USD, and ROI multiplier. Also includes cache hit/miss status and billing details.
Example use cases
Research page within token budget
“Fetch and compress https://en.wikipedia.org/wiki/Transformer_(machine_learning_model) into under 1500 tokens in budget mode, focusing on the query 'attention mechanism', so I can include it in my prompt without running out of context.”
Structured extraction from a product page
“Distill https://openai.com/pricing into structured mode so I get a clean JSON table of all the models and their prices — I want to compare costs programmatically.”
Skeleton outline of a long doc
“Give me a skeleton outline of https://docs.python.org/3/library/asyncio.html so I can see all the top-level sections and subsections without reading the whole thing.”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/context-compress?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to include web page content in its context window but the raw HTML or full page text would exceed token limits or be too expensive to process. It is especially useful for agentic workflows where LLM cost savings matter, when you need a structured or skeleton view of a page rather than full content, or when you want BM25-ranked relevance filtering around a specific query. Prefer it over generic scrapers when token budget control and ROI measurement are priorities.
Side effects
- URL unreachable or returns non-200 — fetch fails, endpoint may return error status
- Raw HTML too large to process within service limits
- Invalid or missing 'url' parameter — returns validation error
- max_tokens set below minimum of 20 — rejected by schema validation
- BM25 query provided but mode is not 'budget' — query may be ignored
- Payment failure via x402 — call blocked if USDC balance insufficient
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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