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Web URL Context Distiller (BM25 Budget Mode)
Web URL Context Distiller (BM25 Budget Mode) is a paid API for AI agents from defi-yield.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-21).
Fetches a URL or raw HTML and distills it into compact, agent-ready tokens using markdown, structured, skeleton, or BM25-focused 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://defi-yield.agentdiet.dev/v1/context-diet)
Output
Returns a distilled payload containing the webpage content in the requested format (markdown, structured JSON, skeleton outline, or BM25-focused budget excerpt), plus an roi_proof object showing raw token count, distilled token count, tokens saved, compression ratio percentage, estimated LLM cost saved in USD, and ROI multiplier. Also includes cache hit/miss status and billing details.
Example use cases
Slim down long docs for agent context
“Grab https://platform.openai.com/docs/guides/function-calling and distill it into markdown, keeping it under 800 tokens — I need the key points without burning my whole context window.”
Topic-focused excerpt from news article
“Distill this URL https://techcrunch.com/2025/01/15/openai-funding into a budget excerpt with max 300 tokens, focused on 'valuation and investors' — just the financially relevant parts.”
Structured data extraction from product page
“Fetch https://aws.amazon.com/ec2/pricing/ and distill it into structured mode so I get the pricing tables and metadata as clean JSON rather than a wall of HTML.”
Technical details
Endpoint
GEThttps://defi-yield.agentdiet.dev/v1/context-diet?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to feed web page content to an LLM but want to minimize token consumption and cost. It is ideal when you have a strict context window budget, want BM25-focused relevance filtering on a specific topic, or need structured/skeleton extraction rather than raw HTML. Prefer over raw scraping when ROI tracking and compression metrics matter, or when you need a builtin://stripe-docs shortcut. Not suitable for full-site crawling, real-time monitoring, or when you need the complete unfiltered HTML.
Side effects
- URL unreachable or returns non-200 — fetch fails with error status
- URL behind authentication wall — returns empty or login-page content instead of target content
- max_tokens set below minimum of 20 — rejected with validation error
- BM25 query provided without mode=budget — query ignored or error returned
- Raw HTML payload too large — may hit size limits
- Payment not completed via x402 — 402 response requiring micropayment before content is returned
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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