{"host":{"displayName":"cryptofeed402","identifier":"cryptofeed402.site","documentationUrl":"https://cryptofeed402.site/llms.txt","logoUrl":"https://cryptofeed402.site/icon.png"},"entries":[{"identifier":"urn:air:cryptofeed402.site:mcp:feed","displayName":"cryptofeed402 MCP server","type":"application/mcp-server-card+json","url":"https://cryptofeed402.site/mcp/server-card","description":"Remote MCP server (streamable HTTP, no auth) for crypto perp funding, open interest, news sentiment, briefs and an agent-readiness audit. Free tools return data; paid tools return x402 requirements (USDC on Base). No account, no API key, no subscription.","capabilities":["get_teaser","get_sample_brief","get_pricing","request_asset","request_report_schedule","get_top_requested_assets","get_price","get_extreme_funding","get_latest_brief","get_audit_sample","get_perps","get_sentiment","audit_agent_ready","get_outlook","get_funding_history","get_history"],"representativeQueries":["MCP server for crypto perp funding rates and open interest","crypto news sentiment tool for an AI agent","MCP tool that returns a crypto market brief","pay-per-call crypto data MCP server with x402"],"tags":["mcp","crypto","funding-rate","open-interest","sentiment","x402"],"version":"1.5.0","metadata":{"endpoint":"https://cryptofeed402.site/mcp","transport":"streamable-http","auth":"none","toolsManifest":"https://cryptofeed402.site/.well-known/mcp/server-card.json"}},{"identifier":"urn:air:cryptofeed402.site:a2a:feed","displayName":"cryptofeed402 agent card","type":"application/a2a-agent-card+json","url":"https://cryptofeed402.site/.well-known/agent-card.json","description":"A2A Agent Card listing every cryptofeed402 skill (HTTP routes paid per call with x402, also exposed as MCP tools). Custom bindings only; no A2A JSON-RPC endpoint.","capabilities":["price","funding_extreme","brief","history","perps","outlook","funding_history","sentiment","audit_agent_ready"],"representativeQueries":["crypto market data agent with perp funding and sentiment skills","agent card for a pay-per-call crypto data feed"],"tags":["a2a","crypto","x402"],"version":"0.9.0"},{"identifier":"urn:air:cryptofeed402.site:brief","displayName":"cryptofeed402 Twice-daily crypto brief","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1brief~1latest","description":"GET /brief/latest: latest twice-daily crypto market brief (JSON + markdown). 503 and no charge if no fresh brief. Price: $0.015 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/brief/sample","capabilities":["CryptoMarketBrief","FundingRates","OpenInterest","NewsSentiment","MacroCalendar"],"representativeQueries":["latest crypto market brief for AI agents","twice-daily bitcoin and ethereum market summary with funding and sentiment","what are the crowded trades in crypto perps today","crypto macro calendar and token unlocks this week"],"tags":["crypto","research","brief","market-summary","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/brief/latest","method":"GET","price":"$0.015","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/brief/sample","mcpTool":"get_latest_brief"}},{"identifier":"urn:air:cryptofeed402.site:price","displayName":"cryptofeed402 Coin snapshot (perp + spot)","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1price~1%7Bsymbol%7D","description":"GET /price/{symbol} (BTC, ETH, SOL, HYPE, NEAR, AAVE): Hyperliquid perp mark, funding, open interest plus OKX spot. Price: $0.0025 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/price","capabilities":["CryptoPrice","PerpMarkPrice","FundingRate","OpenInterest"],"representativeQueries":["current bitcoin price with perp funding rate and open interest","ETH mark price and funding on Hyperliquid","pay-per-call crypto price API for agents without an API key"],"tags":["crypto","price","funding-rate","open-interest","hyperliquid","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/price/BTC","method":"GET","price":"$0.0025","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/price","mcpTool":"get_price"}},{"identifier":"urn:air:cryptofeed402.site:perps","displayName":"cryptofeed402 Perps radar","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1perps~1%7Bsymbol%7D","description":"GET /perps/{symbol}: any listed Hyperliquid perp: funding hourly/8h/annualized, OI, 24h volume, mark/oracle, premium, extreme-funding rank. Unknown symbol 404, no charge. Price: $0.002 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/perps","capabilities":["PerpFunding","OpenInterest","FundingExtremeRank","Premium"],"representativeQueries":["Hyperliquid funding rate and open interest for one perp","is SOL perp funding crowded long or short","annualized funding and 8h funding rate for a perpetual future"],"tags":["crypto","perpetuals","funding-rate","open-interest","hyperliquid","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/perps/BTC","method":"GET","price":"$0.002","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/perps","mcpTool":"get_perps"}},{"identifier":"urn:air:cryptofeed402.site:outlook","displayName":"cryptofeed402 Pre-trade preflight","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1outlook~1%7Bsymbol%7D","description":"GET /outlook/{symbol}: pre-trade preflight for any listed Hyperliquid perp: mark vs OKX spot and oracle (bps), funding and its extreme rank, OI and OI change (~1h/~24h), news sentiment, as_of per component, neutral flags (funding_extreme, oi_spike, venue_divergence, stale_component). No recommendation. Unknown symbol 404 / upstream 503, no charge. Price: $0.01 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/outlook","capabilities":["PreTradeCheck","VenueDivergence","FundingRate","OpenInterestChange","NewsSentiment","DataFreshness"],"representativeQueries":["pre-trade check for a perp before placing a futures order","is BTC perp price diverging from spot or oracle right now","funding, open interest change and sentiment for one perp in one call","cheap perp preflight API for a trading agent over x402"],"tags":["crypto","perpetuals","pre-trade","funding-rate","open-interest","hyperliquid","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/outlook/BTC","method":"GET","price":"$0.01","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/outlook","mcpTool":"get_outlook"}},{"identifier":"urn:air:cryptofeed402.site:funding-history","displayName":"cryptofeed402 Funding history","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1funding~1history~1%7Bsymbol%7D","description":"GET /funding/history/{symbol}?hours=1-720 (or from/to, max 720 h): hourly Hyperliquid funding settlements with mean/min/max and cumulative rate. History back to each perp's listing. Bad params 400 / unknown 404 / stale 503, no charge. Price: $0.005 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/funding-history","capabilities":["FundingHistory","HourlyFunding","Backtesting"],"representativeQueries":["hourly funding rate history for a Hyperliquid perp","average annualized funding for ETH over the last 7 days","funding rate history API for backtesting without an API key"],"tags":["crypto","funding-rate","historical-data","perpetuals","hyperliquid","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/funding/history/BTC?hours=168","method":"GET","price":"$0.005","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/funding-history","mcpTool":"get_funding_history"}},{"identifier":"urn:air:cryptofeed402.site:sentiment","displayName":"cryptofeed402 News sentiment","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1sentiment~1%7Bsymbol%7D","description":"GET /sentiment/{symbol}: score -1..1, bearish/neutral/bullish label, headline counts and top headlines with links. Symbol list free at GET /sentiment. Unknown 404 / stale 503, no charge. Price: $0.002 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/sentiment","capabilities":["NewsSentiment","HeadlineCounts","TopHeadlines"],"representativeQueries":["crypto news sentiment score for bitcoin","is the news flow bullish or bearish for ETH right now","top crypto headlines with sentiment labels for one coin"],"tags":["crypto","sentiment","news","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/sentiment/BTC","method":"GET","price":"$0.002","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/sentiment","mcpTool":"get_sentiment"}},{"identifier":"urn:air:cryptofeed402.site:funding","displayName":"cryptofeed402 Extreme funding scanner","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1funding~1extreme","description":"GET /funding/extreme: the 10 most extreme Hyperliquid funding rates right now (annualized, with OI) plus the watchlist. Price: $0.0025 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/funding","capabilities":["FundingScanner","ExtremeFunding","OpenInterest"],"representativeQueries":["which perps have the most extreme funding rates right now","find crowded shorts and squeeze risk on Hyperliquid","highest annualized funding rates across crypto perpetuals"],"tags":["crypto","funding-rate","perpetuals","open-interest","hyperliquid","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/funding/extreme","method":"GET","price":"$0.0025","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/funding","mcpTool":"get_extreme_funding"}},{"identifier":"urn:air:cryptofeed402.site:history","displayName":"cryptofeed402 Brief archive","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1history","description":"GET /history?from=YYYY-MM-DD&to=YYYY-MM-DD: archived briefs for a date range. Price: $0.005 per day, cap $0.5 per call USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/samples/history","capabilities":["BriefArchive","HistoricalFunding","Backtesting"],"representativeQueries":["archive of past crypto market briefs for a date range","historical crypto funding and sentiment for backtesting","what did the crypto market brief say last week"],"tags":["crypto","history","backtesting","brief","x402"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/history?from=2026-10-17&to=2026-10-18","method":"GET","price":"$0.005 per day, cap $0.5 per call","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/samples/history","mcpTool":"get_history"}},{"identifier":"urn:air:cryptofeed402.site:audit","displayName":"cryptofeed402 Agent-readiness audit","type":"application/vnd.oai.openapi+json","url":"https://cryptofeed402.site/openapi.json#/paths/~1audit~1agent-ready","description":"GET /audit/agent-ready?url=<site>: deterministic 0-100 audit of a public site or x402 API (llms.txt, robots, OpenAPI, x402, agent card, MCP, listings) with fixes. Free example at /audit/sample. Price: $0.05 USDC per call via x402 on Base. No account, no API key, no subscription. Free sample: https://cryptofeed402.site/audit/sample","capabilities":["AgentReadinessAudit","LlmsTxtCheck","X402ChallengeCheck","McpProbe"],"representativeQueries":["audit my website for AI agent readiness","check if my x402 API returns a valid 402 challenge","does my site have llms.txt, OpenAPI and an MCP server card"],"tags":["agent-readiness","audit","x402","mcp","llms-txt"],"version":"0.9.0","metadata":{"endpoint":"https://cryptofeed402.site/audit/agent-ready?url=https%3A%2F%2Fexample.com","method":"GET","price":"$0.05","currency":"USDC","network":"eip155:8453","payment":"x402","sample":"https://cryptofeed402.site/audit/sample","mcpTool":"audit_agent_ready"}}]}