In the SpectroCoin API, all currency codes, both FIAT and cryptocurrency, must be specified using uppercase letters (e.g., "SOL", "BTC", "EUR", "USD"). If a request is made to an endpoint with a currency code in an incorrect format (e.g., lowercase or mixed case), the API will return an error response. The response includes details about the validation failure, structured as follows:

{
  "errorCode": "GEN_8",
  "category": "validation",
  "key": "entity_not_found",
  "defaultMessage": "Requested entity was not found.",
  "spanId": "382ec2e29d50544a",
  "traceId": "1ae3a8bb1d1bf7d3",
  "errorParameters": [
    {
      "key": "Id",
      "value": "id"
    }
  ]
}

Currency name	`currencyCode`
Bitcoin	BTC
Ether	ETH
USDC (formerly USD Coin)	USDC
EURC (formerly EURO Coin)	EURC
Tether USD	USDT
Aave	AAVE
1inch	1INCH
Cardano	ADA
Algorand	ALGO
Aptos	APT
Cosmos	ATOM
Avalanche	AVAX
Basic Attention Token	BAT
Bitcoin Cash	BCH
BNB	BNB
Banker	BNK
Banker (old)	BNK223
Celo	CELO
Chiliz	CHZ
Compound	COMP
Dai	DAI
Dogecoin	DOGE
DASH	DASH
Polkadot	DOT
Enjin Coin	ENJ
Eos	EOS
Filecoin	FIL
The Graph	GRT
Holo	HOT
Chainlink	LINK
Litecoin	LTC
Decentraland	MANA
Mask Network	MASK
Polygon	MATIC
IOTA	MIOTA
Maker	MKR
Near	NEAR
Neo	NEO