cnb

{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['amount', 'from', 'to'], 'properties': {'to': {'type': 'string', 'maxLength': 3, 'minLength': 3, 'description': 'Target currency ISO 4217 code.'}, 'date': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Optional ISO date for historical rates. Omit for latest.'}, 'from': {'type': 'string', 'maxLength': 3, 'minLength': 3, 'description': 'Source currency ISO 4217 code (e.g., "EUR", "USD", "CZK").'}, 'amount': {'type': 'number', 'description': 'Amount to convert.'}}, 'additionalProperties': False}

{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['code'], 'properties': {'code': {'type': 'string', 'maxLength': 3, 'minLength': 3, 'description': 'ISO 4217 currency code (e.g., "EUR", "USD", "GBP").'}, 'date': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Optional ISO date for historical rate.'}}, 'additionalProperties': False}

{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'date': {'type': 'string', 'pattern': '^\\d{4}-\\d{2}-\\d{2}$', 'description': 'Optional ISO date (YYYY-MM-DD) for historical rates. Omit for latest.'}}, 'additionalProperties': False}