Get current or historical fiat rates.

GET

https://optimism-index.nownodes.io/api/v2/tickers

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

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

currencystringquery

Optional currency code. When omitted, all available rates can be returned.

timestampinteger<int64>query

Unix timestamp for historical rates.

blockstringquery

Block height or hash whose timestamp should be used for historical rates.

tokenstringquery

Optional token symbol or contract/address key for token-specific rates.

Response

200OK

Fiat rate ticker.

401Unauthorized

Unauthorized: API key is present but rejected by the NOWNodes gateway.

405Method Not Allowed

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

422Unprocessable Entity

Missing API key. The NOWNodes gateway returns plain text for this error.

default

Public API error.

Get current or historical fiat rates.

curl -X GET 'https://optimism-index.nownodes.io/api/v2/tickers/'

const response = await fetch('https://optimism-index.nownodes.io/api/v2/tickers/', {
  method: 'GET',
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://optimism-index.nownodes.io/api/v2/tickers/')
request = Net::HTTP::Get.new(uri)

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

import requests

response = requests.get('https://optimism-index.nownodes.io/api/v2/tickers/')
data = response.json()

const response = await fetch('https://optimism-index.nownodes.io/api/v2/tickers/', {
  method: 'GET',
});

const data = await response.json();

const endpoint = "https://optimism-index.nownodes.io/api/v2/tickers/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "GET",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({});
console.log(result);

const response = await fetch('https://optimism-index.nownodes.io/api/v2/tickers/', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://optimism-index.nownodes.io/api/v2/tickers/')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://optimism-index.nownodes.io/api/v2/tickers/')
request = Net::HTTP::Get.new(uri)

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

{
  "ts": 1574346615,
  "rates": {
    "eur": 7134.1,
    "usd": 7914.5
  }
}

{
  "ts": 1574346615,
  "rates": {
    "usd": 7914.5
  }
}

{
  "ts": 7980386400,
  "rates": {
    "usd": -1
  }
}

Unknown API_key

Method Not Allowed

Missing API_key

{
  "error": "No tickers found!"
}