{"name":"funding-rates","description":"Returns perp funding rates for any Binance USD-M futures symbol (BTCUSDT, ETHUSDT, SOLUSDT...): current funding %, mark + index price, next funding timestamp, and the last 24 funding intervals (default 24 x 1h-since-event). Free public Binance API, no auth. Use it as a next-funding-time lookup, 24h funding history, or perp basis feed.","price":"$0.005","method":"POST","input_schema":{"properties":{"symbol":{"type":"string","description":"Binance futures symbol — uppercase, no slash. e.g. 'BTCUSDT', 'ETHUSDT'."},"history_intervals":{"type":"number","description":"How many past funding events to include. Range [1, 48]. Default 24."}},"required":["symbol"]},"input_example":{"symbol":"BTCUSDT","history_intervals":24},"output_example":{"symbol":"BTCUSDT","mark_price":71023.5,"index_price":71011.2,"current_funding_rate_pct":0.0098,"next_funding_at":"2026-05-08T16:00:00.000Z","last_24h_avg_pct":0.0084,"last_24h_max_abs_pct":0.0142,"history":[{"time":"2026-05-08T08:00:00.000Z","rate_pct":0.0098}],"source":"binance-fapi"},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}