Get current or historical fiat rates.
Authorizations
ApiKeyAuthApiKeyAuthapi-key string
NOWNodes API key passed in the api-key header.
Modified between 0.5.0 and 0.6.0: fiat-rate currency selectors are bounded; CoinGecko fetching hardened against 429 throttling with a self-healing pass for missing daily rates - availability of rates improves, response shape is unchanged. Documented as it exists in 0.6.0.
Returns currency rates for the requested currency and date. If a rate is unavailable for the exact timestamp, the closest available rate can be returned. Responses include the actual rate timestamp. Without a currency parameter, all available currencies can be returned. A rate of -1 marks an unavailable or invalid currency for that timestamp.
Load estimate: Low to medium; specific currency lookups are cheap, while omitted currency and token lookups increase response size.
Parameters
currencystringqueryOptional currency code. When omitted, all available rates can be returned.
timestampinteger<int64>queryUnix timestamp for historical rates.
blockstringqueryBlock height or hash whose timestamp should be used for historical rates.
tokenstringqueryOptional token symbol or contract/address key for token-specific rates.
Response
HTTP 200 Arbitrum Blockbook response for getFiatTicker.
Domain or validation error. JSON body {"error": "..."}.
Unauthorized: missing or invalid api-key header. The NOWNodes gateway returns the plain-text body "Unknown API_key".
Method Not Allowed: gateway-level response for unknown routes.
Internal Server Error. JSON body {"error":"Internal server error"}.