{"data":{"slug":"cryptofeed402","name":"cryptofeed402","description":"Hyperliquid funding rates, open interest and perps market data for AI agents: extreme funding ranks, funding history, /perps and /outlook pre-trade preflight, news sentiment, twice-daily brief, and agent-readiness audit. Pay per call in USDC on Base via x402 — no API key. No charge on errors; Ed25519-signed receipts on paid 200s. MCP: https://cryptofeed402.site/mcp","base_url":"https://cryptofeed402.site","website_url":"https://cryptofeed402.site","category":"Finance","endpoint_count":11,"min_price_usd":0.002,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-11-03T14:29:13.475Z","last_success_at":"2026-10-27T14:29:13.475Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-27T14:29:13.475Z","created_at":"2026-10-27T11:30:05.560Z","uptime":{"24h":100,"7d":100,"30d":100,"90d":100,"coverage":{"24h":{"daysCovered":1,"checkCount":10},"7d":{"daysCovered":1,"checkCount":10},"30d":{"daysCovered":1,"checkCount":10},"90d":{"daysCovered":1,"checkCount":10}}},"avg_response_time_ms":222,"total_checks":12,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"2a7304ec-19d5-4281-b527-e769428add7f","method":"GET","path":"/attention","description":"Per-coin headline mention volume vs that coin's 7-day average from the latest 12h Legion Go tagger run. Ranked table (symbol, mentions_12h, avg_7d, ratio, z, rank). Volume signal, not tone (use /sentiment for bullish/bearish). No/stale data 503 before any 402, no charge. JSON. Free sample at /samples/attention. $0.003 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.452Z","variable_amount":false,"min_price_usd":0.003,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"d299c89f-e098-40b6-ac6a-6e3aa78fbe32","method":"GET","path":"/audit/agent-ready","description":"Agent-readiness audit for a public website or x402 API: checks llms.txt, robots.txt AI-crawler rules, sitemap, OpenAPI, /.well-known/x402, agent card, an MCP initialize probe, a live unpaid 402 challenge (accepts, network, payTo, Bazaar metadata) and listings on Roundhouse, 402 Index and x402 Doctor. Returns a 0-100 score, pass/warn/fail per check with evidence and a concrete fix. Deterministic, no LLM. Free example at /audit/sample. $0.05 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.459Z","variable_amount":false,"min_price_usd":0.05,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"50000","price_usd":"0.0500000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"b752f582-79eb-48f7-b7c1-239f806c425e","method":"GET","path":"/brief/latest","description":"LLM-written crypto market brief, published twice daily: analysis, not just raw numbers. Plain-English headline and bottom line, sentiment and Fear & Greed, funding rates and open interest (OKX + Hyperliquid) with crowded-trade flags, extreme funding, watchlist prices and 24h/7d moves, top news, macro economic calendar and token unlocks for the next 7 days. JSON plus markdown. Free preview at /brief/sample. $0.015 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.403Z","variable_amount":false,"min_price_usd":0.015,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"15000","price_usd":"0.0150000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"3c7a8d02-8b7c-449f-bf68-cdbf46e73cf1","method":"GET","path":"/funding/extreme","description":"Perpetual futures funding rates and open interest (Hyperliquid), live: the 10 perps with the most extreme funding rate now (over $1M 24h volume), each with annualized funding APR and open interest in USD, plus the current funding rate for a BTC/ETH/SOL/HYPE/NEAR/AAVE watchlist. Use it to spot crowded longs or shorts, squeeze risk and funding-carry candidates. For one perp's full funding + OI snapshot use /perps/{symbol}. JSON. Free sample: /samples/funding. $0.0025 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.393Z","variable_amount":false,"min_price_usd":0.0025,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"2500","price_usd":"0.0025000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"1be7f429-86d3-4105-9991-a4be38d99c36","method":"GET","path":"/funding/history/BTC","description":"Funding rate history for one Hyperliquid perp (incl. HIP-3): each hourly settlement's rate (hourly, 8h, annualized) and premium, or interval=4h/8h/1d UTC buckets, plus mean/min/max, positive/negative hours and cumulative rate. hours=1-720 (default 168) or from/to; up to 2160 hours with 4h/8h/1d; back to listing. Bad params 400, unknown symbol 404, no charge. Free sample at /samples/funding-history. $0.005 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.424Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"eed077d1-93a1-485c-a34a-04ec63f808ac","method":"GET","path":"/history","description":"Archive of past cryptofeed402 twice-daily LLM-written market briefs for a date range (from/to as YYYY-MM-DD, up to 366 days): sentiment, funding, open interest, prices, news and macro calendar per edition. Use it for backtesting, building historical context or reviewing how funding and sentiment evolved. JSON. Free sample at /samples/history. $0.005 USDC per day in range, capped at $0.5 per call, on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.446Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"a4c77355-87f1-46c1-a8e8-b0ada57c6717","method":"GET","path":"/narratives/weekly","description":"Weekly narratives pack: top 5-8 multi-outlet story clusters from seven days of headline-tagger events, each with title, short blurb, outlet counts and links. Published about weekly (Sunday PT). No/stale data 503 before any 402, no charge. JSON. Free sample at /samples/narratives-weekly. $0.025 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.465Z","variable_amount":false,"min_price_usd":0.025,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"25000","price_usd":"0.0250000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"c71a6d12-15d6-496b-9b38-a76014696fab","method":"GET","path":"/outlook/BTC","description":"Pre-trade preflight for one Hyperliquid perp (incl. HIP-3 like xyz:TSLA) in one call: short factual summary plus perp mark vs OKX spot and oracle in bps, funding (hourly/8h/annualized, next_funding_time) and its extreme rank, open interest and change vs ~1h/4h/24h/7d, news sentiment, as_of per component and neutral flags (funding_extreme, oi_spike, venue_divergence, stale_component). Factual checks, no recommendation. Unknown symbol 404, no charge. Free sample at /samples/outlook. $0.01 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.411Z","variable_amount":false,"min_price_usd":0.01,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"10000","price_usd":"0.0100000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"9875c773-6a57-4104-9fd5-255da85dca35","method":"GET","path":"/perps/BTC","description":"Perpetual futures funding rate and open interest snapshot for one Hyperliquid perp (any listed coin, e.g. BTC or HIP-3 xyz:TSLA): current hourly funding, 8h and annualized rate, next_funding_time (next UTC hour) and time_to_next_seconds, open interest in coins and USD, 24h volume, mark and oracle price, premium, 24h change, and whether it ranks in the top 10 funding extremes. venues[] uses symbol / venue / funding_rate / open_interest_usd plus as_of. Unknown symbols: 404, no charge. JSON. Free sample at /samples/perps. $0.002 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.417Z","variable_amount":false,"min_price_usd":0.002,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"2000","price_usd":"0.0020000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"f9b4a936-62d1-4031-838b-4f2c5b4b7f97","method":"GET","path":"/price/BTC","description":"Live snapshot for any listed Hyperliquid perp (BTC, ETH, SOL, kPEPE, ... and HIP-3 like xyz:TSLA): perp mark price, hourly funding rate and annualized funding APR, open interest in coins and USD, 24h volume and premium, plus OKX spot last price and 24h change when listed. Use it for current price and perp positioning of one asset before sizing a trade. Unknown symbol 404, no charge. JSON. Free sample at /samples/price. $0.0025 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.432Z","variable_amount":false,"min_price_usd":0.0025,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"2500","price_usd":"0.0025000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null},{"id":"e2090dce-f03c-4179-9a59-c662081e1763","method":"GET","path":"/sentiment/BTC","description":"Crypto news sentiment for one asset (BTC, ETH, SOL, HYPE, NEAR, AAVE and others; list at /sentiment): a -1..1 score with bearish/neutral/bullish label, counts of positive, negative and neutral headlines in the window, and up to 5 top headlines with source, link and stance. Headlines are labeled by a local LLM; the score is plain arithmetic. Refreshed about every 15 min. Unknown symbol 404, stale data 503, no charge. JSON. Free sample at /samples/sentiment. $0.002 USDC per call on Base.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-10-27T11:30:05.560Z","last_seen_at":"2026-10-27T14:29:13.440Z","variable_amount":false,"min_price_usd":0.002,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"2000","price_usd":"0.0020000000","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","max_timeout_seconds":300}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-27T11:33:55.262Z","input_hash":"91e390aefdf8aaa733caba0c73873dabd63f49bda4d919d787cd1de7861a2928","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":null,"7d":null,"30d":null,"90d":null},"response_p95_ms":263,"avg_response_ms":263,"last_checked_at":"2026-10-27T11:32:03.250Z","consecutive_failures":-1,"total_checks":1},"compliance":{"grade":"A","passed":14,"total":14,"checks":[{"id":"payload_captured","label":"402 payload captured","pass":true},{"id":"accepts_present","label":"accepts[] array present","pass":true},{"id":"payto_recoverable","label":"payTo address recoverable","pass":true},{"id":"payto_conformant","label":"payTo at accepts[0].payTo (conformant shape)","pass":true},{"id":"payto_shape","label":"payTo is a valid on-chain address","pass":true},{"id":"price_present","label":"atomic price declared","pass":true},{"id":"price_sane","label":"atomic price in a sane range","pass":true},{"id":"asset_declared","label":"asset (token) address declared","pass":true},{"id":"network_caip2","label":"network resolves to CAIP-2","pass":true},{"id":"scheme_declared","label":"payment scheme declared","pass":true},{"id":"transport_https","label":"served over HTTPS","pass":true},{"id":"x402_version_current","label":"declares the current x402 version (2)","pass":true},{"id":"eip712_domain_extra","label":"EIP-712 domain parameters present on every EVM entry","pass":true},{"id":"version_channel_coherent","label":"x402 v2 envelope delivered in the payment-required header","pass":true}],"pay_to_source":"payTo","pay_to_location":"accept","staleness":{"probe_failing":false,"last_success_at":"2026-10-27T14:29:13.475Z","envelope_captured_at":"2026-10-27T11:32:03.250Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":true,"robots":true,"terms":true,"checked_at":"2026-10-27T11:33:52.467Z"},"domain":{"age_days":null,"registrar":null,"free_host":false,"created_date":null,"checked_at":"2026-10-27T11:33:55.181Z"},"economics":{"price_usd":0.002,"price_atomic":"2000","model":"tiered","category_percentile":17,"stability":1,"price_max_usd":0.05,"category_percentile_max":57,"endpoint_count":11,"distinct_price_count":8},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":0,"tx_count_30d":0,"unique_buyers_30d":0,"last_settlement_at":null,"top_buyer_share_30d":null,"top_3_buyers_share_30d":null,"concentrated_volume":false,"trend_7d_vs_30d":null,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":null,"volume_usd_all_time":0,"tx_count_all_time":0,"median_settlement_usd_30d":null,"max_settlement_usd_30d":null,"settled_via":[],"settled_via_detail":[],"shared_with_services":[],"pro_quota_share":1,"caveat":"Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.","all_time_caveat":"All-time is floored at the start of our harvest window, not the service full history."}}},"provenance":{"license":"CC-BY-4.0","attribution_required":true,"attribution":"Data: x402-list.com (CC BY 4.0)","cite_as":"https://x402-list.com/services/cryptofeed402","source":"https://x402-list.com"}}