Legacy — API v1

This documents the legacy v1 API. New integrations should use API v2.

Currencies

Get information about cryptocurrencies supported by Nexchange, including minimum trading amounts and withdrawal fees.

Fetch Currencies

Retrieve the complete list of supported currencies and their properties.

Request

GET /currency/

Parameters: None required

Response

Returns an array of currency objects with detailed information about each supported cryptocurrency.

Response Fields:

Field	Type	Description
code	string	Currency ticker symbol (e.g., "BTC", "ETH")
name	string	Full currency name (e.g., "bitcoin", "ethereum")
min_confirmations	integer/null	Minimum confirmations required for deposits
is_crypto	boolean	Whether this is a cryptocurrency
minimal_amount	string	Minimum tradeable amount for this currency (deprecated)
maximal_amount	string	Maximum tradeable amount for this currency (deprecated)
contract_address	string/null	Contract address for tokens (if applicable)
is_base_of_enabled_pair	boolean	Can be used as base currency in trading pairs
is_quote_of_enabled_pair	boolean	Can be used as quote currency in trading pairs
has_enabled_pairs	boolean	Has active trading pairs available
is_base_of_enabled_pair_for_test	boolean	Base pair availability for testing
is_quote_of_enabled_pair_for_test	boolean	Quote pair availability for testing
has_enabled_pairs_for_test	boolean	Test pair availability
withdrawal_fee	string	Fixed withdrawal fee for this currency
extra_id	string/null	Additional identifier for the currency (if applicable)
network	object/null	Network information with name property
decimals	integer	Number of decimal places the currency supports

Example Response:

[
  {
    "code": "BTC",
    "name": "bitcoin",
    "min_confirmations": 1,
    "is_crypto": true,
    "minimal_amount": "0.01000000",
    "is_base_of_enabled_pair": true,
    "is_quote_of_enabled_pair": true,
    "has_enabled_pairs": true,
    "withdrawal_fee": "0.00250000"
  },
  {
    "code": "LTC",
    "name": "litecoin",
    "min_confirmations": 6,
    "is_crypto": true,
    "minimal_amount": "0.50000000",
    "is_base_of_enabled_pair": true,
    "is_quote_of_enabled_pair": true,
    "has_enabled_pairs": true,
    "withdrawal_fee": "0.00010000"
  }
]

Currency Properties

Network Information

• network: Object containing network information with name property (e.g., "BTC", "ETH")
• contract_address: Smart contract address for tokens (null for native currencies)
• extra_id: Special requirements like memo fields or destination tags

Decimal Precision

• decimals: Number of decimal places supported by the currency
• Used for proper amount formatting and validation

Confirmation Requirements

• min_confirmations: Required blockchain confirmations before deposits are credited
• null for fiat currencies (no blockchain confirmations needed)

Trading Availability

• has_enabled_pairs: Currency has active trading pairs
• is_base_of_enabled_pair: Can be received (target currency)
• is_quote_of_enabled_pair: Can be sent (source currency)

Error Responses

404 Not Found

Returned when the endpoint is not available.

Example:

{
  "detail": "Not found"
}

Next Steps

• Trading Pairs - Learn about available trading pair combinations
• Pricing & Rates - Get real-time pricing information
• Orders - Create and manage trading orders