{"uid":"cap_WuxfVC6YVIqtznKKVGz2w","slug":"hn-pulse-agentdiet-dev-web-url-prompt-compressor-with-bm25-budget-31d678f4","name":"Web URL Prompt Compressor with BM25 Budget Control","description":"Distill a URL or raw HTML payload with BM25 budget control (Live x402 v2, IETF MPP & MCP endpoint at https://hn-pulse.agentdiet.dev/v1/prompt-compress)","url":"https://hn-pulse.agentdiet.dev/v1/prompt-compress?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","minLength":1,"description":"Target webpage URL to fetch and distill (or builtin://stripe-docs)"},"html":{"type":"string","description":"Optional raw HTML string to distill directly without fetching"},"mode":{"enum":["markdown","structured","skeleton","budget"],"type":"string","default":"markdown","description":"Distillation mode"},"query":{"type":"string","description":"BM25 focus query when mode=budget"},"max_tokens":{"type":"integer","minimum":20,"description":"Strict token budget ceiling when mode=budget"}}},"responseSchema":{"type":"object","required":["status","roi_proof","data"],"properties":{"data":{"type":"object","description":"Distilled Markdown, structured JSON tables/metadata, skeleton outline, or BM25 budget excerpt."},"cache":{"type":"object","properties":{"status":{"enum":["HIT","MISS"],"type":"string"},"cache_key":{"type":"string"},"latency_ms":{"type":"number"}}},"status":{"type":"string","description":"Execution status ('ok')"},"billing":{"type":"object","properties":{"agent_id":{"type":"string"},"payment_method":{"type":"string"},"fee_charged_usd":{"type":"number"}}},"roi_proof":{"type":"object","properties":{"raw_tokens":{"type":"integer"},"tokens_saved":{"type":"integer"},"roi_multiplier":{"type":"number"},"distilled_tokens":{"type":"integer"},"llm_cost_saved_usd":{"type":"number"},"compression_ratio_pct":{"type":"number"}}}}},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.001","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_so1dYBJ5838TT48lT3N_Y","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"hn-pulse.agentdiet.dev","brandSlug":"hn-pulse-agentdiet-dev-mpp","brandBaseUrl":"https://hn-pulse.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Fetches a URL or raw HTML and distills it into compact, agent-ready tokens using markdown, structured, skeleton, or BM25-budgeted extraction modes","exampleAgentPrompt":"Fetch https://stripe.com/docs/payments and distill it into compact markdown using budget mode, focused on 'payment intents', keeping it under 300 tokens.","exampleUseCases":[{"title":"Distill API docs for agent context","prompt":"Pull https://docs.openai.com/api-reference and compress it into structured mode so I can feed the key tables and metadata to my agent without blowing my context window."},{"title":"BM25 budget excerpt for competitive research","prompt":"Grab https://www.anthropic.com/pricing and extract only the parts relevant to 'token pricing tiers' in budget mode, capped at 200 tokens."},{"title":"Skeleton outline of a long article","prompt":"Distill https://en.wikipedia.org/wiki/Large_language_model into a skeleton outline so I can see the section structure without reading the whole thing."}],"resultDescription":"Returns a distilled payload containing one of: clean markdown, structured JSON tables and metadata, a section skeleton outline, or a BM25-ranked excerpt trimmed to the token budget. Also includes ROI proof fields showing raw vs. distilled token counts, compression ratio, tokens saved, and estimated LLM cost saved in USD, plus optional cache hit/miss status and billing info.","failureModes":["URL is unreachable or returns non-200 — fetch fails with error status","Raw HTML too large for processing — may timeout or truncate","mode=budget without a query or max_tokens — falls back to default markdown behavior","Invalid or malformed URL — returns validation error","max_tokens set below minimum of 20 — rejected with schema validation error","Payment not settled via x402 — 402 response blocking the call"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to read web content but context-window size or LLM token costs are a concern. It is especially valuable when you need BM25-focused excerpts around a specific query topic, or when you want structured tables and metadata extracted from HTML rather than raw page dumps. Prefer it over generic scraping tools when token efficiency and cost ROI reporting matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:22.017Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-web-url-prompt-compressor-with-bm25-budget-31d678f4"}