{
  "sources": {
    "Binance": {
      "doc_url": "https://developers.binance.com/docs/derivatives/usds-margined-futures/general-info",
      "rate_limit": "2400 req/min (IP), 1200 req/min (单端点)",
      "weight_system": true,
      "weight_note": "每个端点有不同权重，depth limit=5 权重2，klines 权重5",
      "retry_after_header": "Retry-After",
      "ban_duration": "IP封禁2-30分钟"
    },
    "OKX": {
      "doc_url": "https://www.okx.com/docs-v5/en/",
      "rate_limit": "20 req/2s (公共端点), 10 req/2s (市场数据)",
      "weight_system": false,
      "retry_after_header": null,
      "ban_duration": "限流后需等待"
    },
    "Bybit": {
      "doc_url": "https://bybit-exchange.github.io/docs/v5/intro",
      "rate_limit": "120 req/5s (公共端点)",
      "weight_system": false,
      "retry_after_header": null,
      "ban_duration": "限流后等待5秒"
    },
    "Kraken": {
      "doc_url": "https://docs.kraken.com/api/",
      "rate_limit": "1 req/s (公共端点), 15 req/s (认证)",
      "weight_system": true,
      "weight_note": "计数器系统，公共端点每秒+1，上限15",
      "retry_after_header": null,
      "ban_duration": "限流后等待几秒"
    },
    "Gate.io": {
      "doc_url": "https://www.gate.io/docs/developers/apiv4/",
      "rate_limit": "900 req/min (IP), 300 req/min (单端点)",
      "weight_system": false,
      "retry_after_header": "X-Gate-RateLimit-Remaining",
      "ban_duration": "限流后等待60秒"
    },
    "KuCoin": {
      "doc_url": "https://www.kucoin.com/docs/rest/spot-trading/market-data/get-klines",
      "rate_limit": "100 req/10s (IP)",
      "weight_system": false,
      "retry_after_header": null,
      "ban_duration": "限流后等待10秒"
    },
    "HTX": {
      "doc_url": "https://www.htx.com/en-us/opend/newApiPages/",
      "rate_limit": "100 req/10s (IP)",
      "weight_system": false
    },
    "Bitfinex": {
      "doc_url": "https://docs.bitfinex.com/reference/rest-public-ticker",
      "rate_limit": "90 req/min (公共端点)",
      "weight_system": false
    },
    "Crypto.com": {
      "doc_url": "https://exchange-docs.crypto.com/exchange/v1/rest-ws/index.html",
      "rate_limit": "100 req/s (公共端点)",
      "weight_system": false
    },
    "MEXC": {
      "doc_url": "https://mexcdevelop.github.io/apidocs/spot_v3_en/",
      "rate_limit": "20 req/s (IP)",
      "weight_system": true,
      "weight_note": "每个端点有不同权重"
    },
    "Deribit": {
      "doc_url": "https://docs.deribit.com/",
      "rate_limit": "20 req/s (非认证), 5 req/s (认证)",
      "weight_system": false,
      "ban_duration": "限流后等待1秒"
    },
    "DeFiLlama": {
      "doc_url": "https://defillama.com/docs/api",
      "rate_limit": "无官方限制，建议 <30 req/min",
      "weight_system": false,
      "note": "完全免费开源，无需Key，但高频会429"
    },
    "CoinGecko": {
      "doc_url": "https://docs.coingecko.com/reference/introduction",
      "rate_limit": "30 req/min (免费层)",
      "weight_system": false,
      "retry_after_header": "Retry-After",
      "ban_duration": "限流后等待60秒"
    },
    "CoinPaprika": {
      "doc_url": "https://api.coinpaprika.com/",
      "rate_limit": "10 req/s (免费层)",
      "weight_system": false
    },
    "Alternative.me": {
      "doc_url": "https://alternative.me/crypto/fear-and-greed-index/#api",
      "rate_limit": "无官方限制，建议 <10 req/min",
      "weight_system": false
    },
    "Reddit": {
      "doc_url": "https://www.reddit.com/dev/api/",
      "rate_limit": "60 req/min (OAuth), 10 req/min (无认证JSON)",
      "weight_system": false,
      "note": "JSON端点需User-Agent，否则429"
    },
    "Nitter": {
      "doc_url": "https://github.com/zedeus/nitter",
      "rate_limit": "取决于实例，建议 <5 req/min",
      "weight_system": false,
      "note": "实例不稳定，需多实例轮询"
    },
    "Yahoo Finance": {
      "doc_url": "https://finance.yahoo.com/",
      "rate_limit": "2000 req/h (非官方估计)",
      "weight_system": false,
      "note": "非官方API，可能变更"
    },
    "WorldBank": {
      "doc_url": "https://datahelpdesk.worldbank.org/knowledgebase/articles/889392-about-the-indicators-api-documentation",
      "rate_limit": "无官方限制，建议 <30 req/min",
      "weight_system": false
    },
    "Blockchain.info": {
      "doc_url": "https://www.blockchain.com/explorer/api",
      "rate_limit": "无官方限制，建议 <30 req/min",
      "weight_system": false
    },
    "Mempool.space": {
      "doc_url": "https://mempool.space/docs/api/rest",
      "rate_limit": "无官方限制，建议 <60 req/min",
      "weight_system": false
    },
    "Blockchair": {
      "doc_url": "https://blockchair.com/api",
      "rate_limit": "30 req/min (免费层)",
      "weight_system": false
    },
    "DexScreener": {
      "doc_url": "https://docs.dexscreener.com/api/reference",
      "rate_limit": "300 req/min",
      "weight_system": false
    },
    "Hyperliquid": {
      "doc_url": "https://hyperliquid.gitbook.io/hyperliquid-docs/for-developers/api",
      "rate_limit": "1200 req/min",
      "weight_system": false
    },
    "Raydium": {
      "doc_url": "https://docs.raydium.io/",
      "rate_limit": "无官方限制",
      "weight_system": false
    },
    "CoinGlass": {
      "doc_url": "https://docs.coinglass.com/reference/api-introduction",
      "rate_limit": "30 req/min (免费Key)",
      "weight_system": false
    },
    "Etherscan": {
      "doc_url": "https://docs.etherscan.io/",
      "rate_limit": "5 req/s (免费Key)",
      "weight_system": false
    }
  }
}