cryptofeed402

Free: latest brief teaser text, Hyperliquid extreme funding (8h-equivalent rates), BTC/ETH/SOL prices with 24h change.

Free: a delayed, trimmed sample of the twice-daily crypto brief (previous edition; no OI, sentiment or markdown). Use to evaluate before paying for get_latest_brief.

Free: current per-call prices (USDC on Base via x402), network and payTo address.

Free: ask cryptofeed402 to consider monitoring a coin it does not cover yet (covered: BTC, ETH, SOL, HYPE, NEAR, AAVE). Logged for human review; high-demand assets may be added to the brief and paid endpoints later. Not a guarantee. Limit 10/hour/IP; repeat asks for the same symbol within 24h count once.

Free: tell cryptofeed402 how often you want briefs/reports and the best UTC hours to have a fresh one ready, so we can schedule to match. Logged as aggregate demand (GET /feedback/schedule shows counts only; notes and agent names are never published; no IPs stored). Limit 10/hour/IP.

Free: top 20 coins other agents have asked cryptofeed402 to monitor in the last 30 days (aggregate counts only).

Paid endpoint ($0.0025): perp mark, funding, OI (Hyperliquid) plus OKX spot for any listed Hyperliquid perp (main dex or HIP-3 like xyz:TSLA; HIP-3 has no spot cross-check). Unknown symbols return an error and no charge. Returns the x402 payment requirements and URL; pay with your own x402 client. Free sample response: https://cryptofeed402.site/samples/price

Paid endpoint ($0.0025): most extreme Hyperliquid funding rates right now. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/funding

Paid endpoint ($0.015): the full latest twice-daily crypto research brief (JSON + markdown). Returns the x402 payment requirements and URL. Free sample: get_sample_brief or https://cryptofeed402.site/brief/sample

Free: a cached example agent-readiness audit of cryptofeed402.site (score 0-100, pass/warn/fail per check with evidence and fixes) so you can see the output of audit_agent_ready before paying.

Paid endpoint ($0.002): one Hyperliquid perp's funding (hourly, 8h, annualized, next_funding_time ISO-8601 UTC + time_to_next_seconds), open interest in USD, 24h volume, mark/oracle price, premium and whether it is in the top-10 funding extremes. Any listed Hyperliquid perp, incl. HIP-3 builder dexes (xyz:TSLA; rank null); unknown symbols return an error and no charge. Returns the x402 payment req

Paid endpoint ($0.002): crypto news sentiment for one asset: -1..1 score, bearish/neutral/bullish label, pos/neg/neu headline counts and up to 5 top headlines with links. Headlines labeled by a local LLM, score is plain math, refreshed about every 15 min. Symbols not in the current snapshot or stale data return an error and no charge (free list: GET /sentiment). Returns the x402 payment requiremen

Paid endpoint ($0.05): audits a public website or x402 API for AI-agent readiness (llms.txt, robots.txt AI rules, sitemap, OpenAPI, /.well-known/x402, agent card, MCP initialize, a live unpaid 402 challenge, Bazaar metadata, Roundhouse / 402 Index / x402 Doctor listings). Deterministic, no LLM. Returns the x402 payment requirements and URL; see get_audit_sample for the output format.

Paid endpoint ($0.01): pre-trade preflight for one Hyperliquid perp in one call: a short factual summary string plus perp mark vs OKX spot and vs oracle (bps), funding hourly/8h/annualized with next_funding_time and its extreme-funding rank, open interest and OI change vs ~1h/~4h/~24h/~7d ago (null until our snapshots cover the window), news sentiment if covered, as_of per component, and neutral f

Paid endpoint ($0.005): hourly funding settlements for one Hyperliquid perp (rate hourly/8h/annualized, premium) plus mean/min/max, positive/negative hours and cumulative rate. Give hours (1-720, default 168) or from/to (YYYY-MM-DD or ISO 8601 UTC, max 720 hours); interval=4h/8h/1d returns UTC buckets (mean rate, cumulative) and allows up to 2160 hours (90 days). Any Hyperliquid perp incl. HIP-3 (

Paid endpoint ($0.003): OHLCV candles for any Hyperliquid perp (venue=hyperliquid, default; main dex + HIP-3; intervals 1m,3m,5m,15m,30m,1h,2h,4h,8h,12h,1d,3d,1w,1M; limit 1-500, default 100; optional end= epoch ms or ISO for older candles, Hyperliquid keeps the most recent 5000 per interval) or any OKX USDT spot pair (venue=okx; intervals 1m-12h,1d,1w,1M; limit 1-300; most recent only). Bad param

Paid endpoint ($0.002): OKX spot ticker for any live <SYMBOL>-USDT pair: last, bid/ask, spread in bps, 24h open/high/low/change, UTC-day change and 24h volume. Unknown pairs return an error and no charge. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/spot

Paid endpoint ($0.005): about-hourly open-interest history (coins, USD, mark, hourly funding) for one Hyperliquid main-dex perp, from cryptofeed402's own snapshots (8-day retention; Hyperliquid has no public OI history). hours 1-192, default 24. HIP-3 symbols, bad params or missing history return an error and no charge. Returns the x402 payment requirements and URL. Free sample response: https://c

Paid endpoint ($0.003): per-coin headline mention volume vs 7-day average from the latest 12h tagger run (ranked table). Optional symbol returns one coin. Volume signal, not tone (use get_sentiment for bullish/bearish). No/stale data or unknown symbol return an error and no charge. Returns the x402 payment requirements and URL. Free sample: https://cryptofeed402.site/samples/attention

Paid endpoint ($0.025): weekly narratives pack — top multi-outlet story clusters from seven days of headline-tagger events, with titles, blurbs and links. No/stale data returns an error and no charge. Returns the x402 payment requirements and URL. Free sample: https://cryptofeed402.site/samples/narratives-weekly

Paid endpoint ($0.005 per day, max $0.50 per call): archived briefs for a date range. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/history