Crypto market data for AI agents: Hyperliquid funding/OI, OKX spot and a twice-daily brief, paid per call in USDC on Base with x402. No API key, no signup.
Scored across 27 tools
Several tools return overlapping perp snapshot data: get_price, get_perps, get_outlook, and get_perps_context all return mark/funding/OI for one symbol or a small set, differing mainly in extra fields (OKX spot, OI deltas, matching, multi-symbol scanning). get_history vs get_briefs_history and get_attention vs get_sentiment vs get_coverage_heat are also close cousins, though descriptions explicitly contrast them (volume vs tone, date-range vs 7-day pack), which keeps selection workable for a careful agent.
The dominant pattern is get_<resource> in snake_case, with request_asset/request_report_schedule and audit_agent_ready as the only different verbs. Minor deviation: free preview tools are named get_sample_brief, get_audit_sample, and get_teaser rather than a uniform get_*_sample convention, but overall the set reads predictably.
27 tools is heavy and includes several free helpers (get_pricing, get_teaser, get_sample_brief, get_top_requested_assets, request_asset, request_report_schedule) plus four overlapping perp-snapshot endpoints. The breadth is partly justified by a genuinely wide data domain (funding, OI, candles, spot, sentiment, narratives, briefs, audits), so it's borderline rather than bloated beyond reason.
Coverage is strong for a crypto research/market-data feed: perp state, funding (current/history/spread/extremes), OI history, candles, spot, liquidations, sentiment, news heat, narratives, briefs and backtest history, plus a self-audit endpoint. Gaps are minor: no order-book/trades data, no tool to list currently covered symbols (only GET endpoints referenced in prose), and the token-unlocks data mentioned in get_latest_brief has no standalone tool.
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.
Inputs: url (required).
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
Inputs: symbol.
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.
Inputs: no named parameters.
Paid endpoint ($0.02): pre-built pack of the last ~7 days of twice-daily crypto digest briefs (primary writer plus standby backup for missed slots), full markdown bodies with sha256, for backtests. Different from get_history (date range, per day). Missing/stale pack returns an error and no charge. Returns x402 requirements + URL. Free sample: https://cryptofeed402.site/samples/briefs-history
Inputs: no named parameters.
Paid endpoint ($0.012): one call with the latest brief, news sentiment, and perps radar for one symbol. 503 if any component is missing/stale; no charge on errors. Returns x402 requirements + URL. Free sample: https://cryptofeed402.site/samples/bundle
Inputs: symbol (required).
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 params or unknown symbol return an error and no charge. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/candles
Inputs: symbol (required), end, limit, venue, +1 more.
Paid endpoint ($0.002): per-asset multi-outlet news heat from the latest headline-tagger run (~every 12h): event count, events corroborated by 2+ outlets, outlet names and up to 3 sample headlines per asset. Missing/stale data returns an error and no charge. Returns x402 requirements + URL. Free sample: https://cryptofeed402.site/samples/coverage-heat
Inputs: no named parameters.
Paid endpoint ($0.0025): the 10 most extreme Hyperliquid funding rates right now (annualized %, with open interest in USD, perps with >$1M 24h volume) plus the watchlist (BTC, ETH, SOL, HYPE, NEAR, AAVE). Use it to spot crowded longs/shorts and squeeze risk before a trade or for a funding-arbitrage scan. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/funding
Inputs: no named parameters.
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 (xyz:TSLA). History back to each perp's listing (BTC since 2023-05-12). Bad params or unknown symbol return an error and no charge. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/funding-history
Inputs: symbol (required), to, from, hours, +1 more.
Paid endpoint ($0.005): cross-venue funding carry for 1-20 symbols (Hyperliquid + OKX; Binance/Bybit when reachable). Rates normalized to hourly/APR; spread = max-min. <2 venues or bad params return an error and no charge. Returns x402 requirements + URL. Free sample: https://cryptofeed402.site/samples/funding-spread
Inputs: venues, symbols.
Paid endpoint ($0.005 per day, max $0.50 per call): archived twice-daily briefs for a date range (from/to YYYY-MM-DD, up to 366 days), each with sentiment, funding, open interest, prices, news and macro calendar. For backtesting, reviewing how the market narrative evolved, or filling a report gap. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/history
Inputs: from (required), to.
Paid endpoint ($0.015): the full latest twice-daily crypto research brief (JSON + markdown): headline and bottom line, sentiment and Fear & Greed, funding and open interest with crowded-trade flags, watchlist prices and 24h/7d moves, top news, macro calendar and token unlocks for the next 7 days. For agents that need a ready market summary for a user or a daily report. Returns the x402 payment requirements and URL. Free sample: get_sample_brief or https://cryptofeed402.site/brief/sample
Inputs: no named parameters.
Paid endpoint ($0.003): recent OKX USDT-SWAP public liquidations for one symbol (hours=0.25-24, default 1). Bybit is geo-blocked from this host. Unknown/empty/upstream errors are not charged. Returns x402 requirements + URL. Free sample: https://cryptofeed402.site/samples/liquidations
Inputs: symbol (required), hours.
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
Inputs: no named parameters.
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://cryptofeed402.site/samples/oi-history
Inputs: symbol (required), hours.
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 flags (funding_extreme, oi_spike, venue_divergence, stale_component) with their rules. Factual checks only, no buy/sell call. Unknown symbol or unavailable data returns an error and no charge. Returns the x402 payment requirements and URL. Free sample response: https://cryptofeed402.site/samples/outlook
Inputs: symbol (required).
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 requirements and URL. Free sample response: https://cryptofeed402.site/samples/perps
Inputs: symbol (required).
Paid endpoint ($0.01): one-call market scan for trading agents. For the watchlist plus every coin in the current news snapshots (up to 25), or the symbols you pass (1-20), returns Hyperliquid perp state (mark, oracle, 24h change, funding hourly/8h/annualized, OI in USD, 24h volume, premium, extreme-funding rank) joined with news sentiment (score, label, counts, top headlines) and headline attention vs 7-day average, plus neutral flags (funding_extreme, attention_spike, news_active). Facts only, no recommendation. Unknown symbols, bad params or stale data return an error and no charge. Returns the x402 payment requirements and URL. Free sample: https://cryptofeed402.site/samples/perps-context
Inputs: symbols.
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
Inputs: symbol (required).
Free: current per-call prices (USDC on Base via x402), network and payTo address.
Inputs: no named parameters.
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.
Inputs: no named parameters.
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 requirements and URL. Free sample response: https://cryptofeed402.site/samples/sentiment
Inputs: symbol (required).
Paid endpoint ($0.002): OKX spot ticker for any live -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
Inputs: symbol (required).
Free: top 20 coins other agents have asked cryptofeed402 to monitor in the last 30 days (aggregate counts only).
Inputs: no named parameters.
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.
Inputs: symbol (required), agent, reason.
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.
Inputs: frequency (required), preferred_utc_hours (required), note, symbols, +2 more.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
Add one secure layer between your agents and this server.