สร้างสิ่งที่ยอดเยี่ยมด้วยข้อมูล crypto yield แบบสดใจ

// Best stablecoin yield: fetch USDC lending rates, sort by rate
const res = await fetch(
  "https://api.bitcompare.net/api/v1/rates/USDC?category=lending",
  { headers: { Authorization: `Bearer ${process.env.BITCOMPARE_API_KEY}` } }
)
const { data } = await res.json()
const best = data.rates.sort((a, b) => Number(b.rate) - Number(a.rate))[0]

{
  "data": {
    "symbol": "USDC",
    "rates": [
      {
        "provider": "kamino",
        "symbol": "USDC",
        "category": "lending",
        "rate": 3.66727,
        "metadata": {
          "chain": "Solana",
          "source": "defillama_yields",
          "poolId": "d2141a59-c199-4be7-8d4b-c8223954836b",
          "project": "kamino-lend",
          "tvlUsd": 21978787,
          "apyBase": 3.66727,
          "exposure": "single",
          "poolMeta": "Main Market",
          "apyReward": null,
          "apyMean30D": 4.7308,
          "isStablecoin": true
        },
        "lastUpdated": "2026-06-21T13:21:10.567Z",
        "coinId": "usd-coin",
        "providerSymbol": "USDC",
        "unitType": "absolute",
        "unitSymbol": null
      },
      {
        "provider": "silo",
        "symbol": "USDC",
        "category": "lending",
        "rate": 2.00601,
        "metadata": {
          "chain": "Avalanche",
          "source": "defillama_yields",
          "poolId": "82c8eda4-f27b-4e41-851d-4368af5e4866",
          "project": "silo-v2",
          "tvlUsd": 1223994,
          "apyBase": 2.00601,
          "exposure": "single",
          "poolMeta": "id 162",
          "apyReward": null,
          "apyMean30D": 2.95397,
          "isStablecoin": true
        },
        "lastUpdated": "2026-06-21T13:21:09.489Z",
        "coinId": "usd-coin",
        "providerSymbol": "USDC",
        "unitType": "absolute",
        "unitSymbol": null
      }
    ],
    "count": 18
  }
}

# Track staking rewards for ETH
curl -s "https://api.bitcompare.net/api/v1/rates/ETH?category=staking" \
  -H "Authorization: Bearer $BITCOMPARE_API_KEY"

{
  "data": {
    "symbol": "ETH",
    "rates": [
      {
        "provider": "etherfi",
        "symbol": "ETH",
        "category": "staking",
        "rate": 2.39494,
        "metadata": {
          "chain": "Ethereum",
          "source": "defillama_yields",
          "poolId": "46bd2bdf-6d92-4066-b482-e885ee172264",
          "project": "ether.fi-stake",
          "tvlUsd": 3063185615,
          "apyBase": 2.30549,
          "exposure": "single",
          "poolMeta": null,
          "apyReward": 0.08946,
          "apyMean30D": 2.80603,
          "isStablecoin": false
        },
        "lastUpdated": "2026-06-21T13:20:56.572Z",
        "coinId": "ethereum",
        "providerSymbol": "WEETH",
        "unitType": "absolute",
        "unitSymbol": null
      },
      {
        "provider": "nexo",
        "symbol": "ETH",
        "category": "staking",
        "rate": 6.25,
        "metadata": {
          "source": "nexo_earn_api",
          "duration": 30,
          "flexRate": 3.25,
          "baseSymbol": "ETH",
          "cryptoName": "Ether",
          "hasFloorApy": false,
          "durationType": "fixed",
          "rewardsClaim": "automatic",
          "warmUpPeriod": {
            "type": "range",
            "numbers": [
              1,
              1
            ],
            "periods": [
              "day",
              "day"
            ]
          },
          "rewardsPayout": "automatic",
          "rewardFrequency": {
            "text": "daily",
            "type": "text"
          },
          "minPurchaseAmount": "0.29136951",
          "undelegationPeriod": {
            "text": "immediate",
            "type": "text"
          },
          "flexProviderSymbol": "ETH-FLEX"
        },
        "lastUpdated": "2026-06-21T13:20:51.587Z",
        "coinId": "ethereum",
        "providerSymbol": "ETH-30D",
        "unitType": "absolute",
        "unitSymbol": null
      }
    ],
    "count": 11
  }
}

// Compare BTC lending vs borrowing rates (one call per category)
const [lending, borrowing] = await Promise.all(
  ["lending", "borrowing"].map((category) =>
    fetch(
      `https://api.bitcompare.net/api/v1/rates/BTC?category=${category}`,
      { headers: { Authorization: `Bearer ${process.env.BITCOMPARE_API_KEY}` } }
    ).then((r) => r.json())
  )
)
const spread =
  Number(borrowing.data.rates[0].rate) - Number(lending.data.rates[0].rate)

{
  "data": {
    "symbol": "BTC",
    "rates": [
      {
        "provider": "bitfinex",
        "symbol": "BTC",
        "category": "lending",
        "rate": 0.002,
        "metadata": null,
        "lastUpdated": "2026-06-21T13:15:18.587Z",
        "coinId": "bitcoin",
        "providerSymbol": "BTC",
        "unitType": "absolute",
        "unitSymbol": null
      },
      {
        "provider": "aqru",
        "symbol": "BTC",
        "category": "lending",
        "rate": 2.5,
        "metadata": null,
        "lastUpdated": "2026-06-21T13:15:04.069Z",
        "coinId": null,
        "providerSymbol": "BTC",
        "unitType": "absolute",
        "unitSymbol": null
      }
    ],
    "count": 14
  }
}