{"name":"x402 reference APIs","description":"Open upstream APIs maintained by Chest. Free here; gateable via https://gate.chest.sh.","endpoints":[{"slug":"market-read","description":"Realtime crypto prices, order books, OHLCV"},{"slug":"weather","description":"Weather by city"},{"slug":"sentiment","description":"Token sentiment + summaries"},{"slug":"ai-inference","description":"Lightweight classification + summarisation"},{"slug":"content-paywall","description":"Per-article paid content"},{"slug":"funding-rates","description":"Hyperliquid perp funding rates"},{"slug":"implied-volatility","description":"Options IV surface"},{"slug":"liquidations","description":"Recent liquidations feed"},{"slug":"polymarket","description":"Polymarket prediction-market prices"},{"slug":"technicals","description":"RSI / MACD / EMA per token"},{"slug":"token-unlocks","description":"Cliff + linear unlock schedules"},{"slug":"trading-signals","description":"Aggregated signals"},{"slug":"web-scraper","description":"Demo scraped data feeds"}]}