curl "https://api.shadowbook.io/trading-view/order-book?base=0691b2fecca1ac4f53cb6dfb00b7013e561d1f34403b957cbb5af1fa:4e49474854&quote=ADA"

{
  "base": "ADA",
  "quote": "279c909f348e533da5808898f87f9a14bb2c3dfbbacccd631d927a3f:534e454b",
  "spot": "0.00001",
  "bids": [
    { "price": "0.0000110", "accumulated_liquidity": 3000000000 },
    { "price": "0.0000100", "accumulated_liquidity": 1500000000 },
    { "price": "0.0000090", "accumulated_liquidity": 500000000 }
  ],
  "asks": [
    { "price": "0.0000120", "accumulated_liquidity": 2000000000 },
    { "price": "0.0000130", "accumulated_liquidity": 800000000 }
  ]
}

{
  "error": "Pair ADA/UNKNOWN not found"
}