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RAG Chunk: BM25 Budget-Controlled Web Distillation
RAG Chunk: BM25 Budget-Controlled Web Distillation is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-23).
Fetches a URL or accepts raw HTML and distills it into compact, token-budgeted agent-ready content using BM25 relevance ranking with strict token ceiling 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://serp-extract.agentdiet.dev/v1/rag-chunk)
Output
Returns a 'data' object containing the distilled content (markdown, structured JSON tables/metadata, skeleton outline, or BM25-ranked budget excerpt depending on mode), plus an 'roi_proof' object showing raw vs distilled token counts, compression ratio percentage, tokens saved, estimated LLM cost saved in USD, and ROI multiplier. Also includes cache status (HIT/MISS) and billing details.
Example use cases
RAG pipeline context injection
“Pull https://en.wikipedia.org/wiki/Transformer_(deep_learning_architecture) and give me a BM25-focused excerpt about 'attention mechanism' capped at 400 tokens — I need to inject it into my RAG pipeline without blowing the context limit.”
Documentation page summarization
“Distill https://docs.anthropic.com/claude/reference/messages-post into structured mode so I can get the key tables and metadata from that API reference page as compact JSON.”
Raw HTML content stripping
“I have this raw HTML blob from a scraped product page — can you run it through budget mode with the query 'pricing and shipping policy' and keep it under 250 tokens so I can feed it to my classifier?”
Technical details
Endpoint
POSThttps://serp-extract.agentdiet.dev/v1/rag-chunk?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need precise token-budget control over web content extraction — especially in RAG pipelines where context window size is constrained. The BM25 budget mode is uniquely suited for query-focused relevance extraction with a strict token ceiling, distinguishing it from generic web-to-markdown converters. Prefer it over simpler distillation endpoints when you need the roi_proof compression metrics or need to pass raw HTML directly without a fetch step.
Side effects
- Invalid or unreachable URL returns fetch error
- Token budget too low (below 20) returns validation error
- No URL provided when html is also absent triggers required field error
- BM25 query missing when mode=budget may return unfiltered or degraded output
- Paywalled or bot-blocked pages may return incomplete distillation
- Payment failure via x402 returns 402 with payment instructions
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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