Forex and currency conversion JSON API

Real-time foreign exchange rates API and historical forex data for 140 world currencies.

Reliable forex data

Currency data is sourced from well established commercial providers and large banks, that correspond to the institutional grade performance standards.

Currency conversion

Apart from getting the single exchange rate data feed - you can also convert one currency to another with the specification of the amount.

Low latency

API data is updated every 1 minute, whereas in real-time streaming through WebSocket is updated tick by tick with latency of only 170ms.

Ease of integration

Set up JSON API in just a few minutes with a simple URL request or with the use of our SDKs & spreadsheets add-ins.

World currencies

Forex data as is

Access 140 currencies and precious metals that make over 2000 foreign exchange rates pairs updated in real time - all that in a single API.

Major

Well-known currencies, with a large number of cross exchange rates.

US Dollar (USD)
Euro (EUR)
Singapore Dollar (SGD)
Korean Won (KRW)
Australian Dollar (AUD)
Swiss Franc (CHF)
British Pound (GBP)
Canadian Dollar (CAD)
Chinese Yuan (CNY)
Hong Kong Dollar (HKD)
Indian Rupee (INR)
Japanese Yen (JPY)
New Zealand Dollar (NZD)
Russian Ruble (RUB)
Turkish Lira (TRY)
UAE Dirham (AED)
Argentinian Peso (ARS)
Brazil Real (BRL)
Central African CFA franc (XAF)
Czech Koruna (CZK)
Danish Krone (DKK)
Icelandic Krona (ISK)
Indonesian Rupiah (IDR)
Israeli Shekel (ILS)
Mexican Peso (MXN)
Norwegian Krone (NOK)
Qatari Riyal (QAR)
Saudi Riyal (SAR)
Thai Baht (THB)

Precious metals

Brent Spot (XBR)
Crude Oil WTI Spot (WTI)
Gold Spot (XAU)
Gold Gram (GAU)
Silver Spot (XAG)
Gram Silver (XAGg)
Palladium Spot (XPD)
Platinum Spot (XPT)
Copper Pound (XG)

Minor

Foreign exchange rates from all 5 continents that also update in real-time, including the exotic ones.

Afghanistan Afghani (AFN)
Albanian Lek (ALL)
Algerian Dinar (DZD)
Angolan kwanza (AOA)
Antilles Guilder (ANG)
Armenian Dram (AMD)
Azerbaijani Manat (AZN)
Bahamas Dollar (BSD)
Baharain Dinar (BHD)
Bangladeshi Taka (BDT)
Barbadian Dollar (BBD)
Belarusian Ruble (BYN)
Belize Dollar (BZD)
Bolivian Boliviano (BOB)
Bosnia-Herzegovina Convertible Mark (BAM)
Botswana Pula (BWP)
Brunei Dollar (BND)
Bulgarian Lev (BGN)
Burundian Franc (BIF)
Cambodian Riel (KHR)
Cape Verdean Escudo (CVE)
Cayman Islands Dollar (KYD)
Costa Rican Colon (CRC)
Croatian Kuna (HRK)
Cuban Peso (CUP)
Chilean Peso (CLP)
Colombian Peso (COP)
Djiboutian Franc (DJF)
Dominican Peso (DOP)
El Salvador Colon (SVC)
Ethiopian Birr (ETB)
East Caribbean Dollar (XCD)
Egyptian Pound (EGP)
Fiji Dollar (FJD)
French Pacific Franc (XPF)
Gambian Dalasi (GMD)
Georgian lari (GEL)
Haitian Gourde (HTG)
Honduran Lempira (HNL)
Hungarian Forint (HUF)
Iranian Rial (IRR)
Iraqi Dinar (IQD)

Jordan Dinar (JOD)
Jamaican Dollar (JMD)
Kazakh Tenge (KZT)
Kenyan Shilling (KES)
Kuwaiti Dinar (KWD)
Kyrgyzstan som (KGS)
Lebanese Pound (LBP)
Macedonian Denar (MKD)
Malawian Kwacha (MWK)
Malaysian Ringgit (MYR)
Mauritian Rupee (MUR)
Mongolian Tugrik (MNT)
Moroccan Dirham (MAD)
Namibian Dollar (NAD)
Nepalese Rupee (NPR)
Nicaraguan Cordoba (NIO)
Nigerian Naira (NGN)
Omani Rial (OMR)
Pakistani Rupee (PKR)
Panamanian Balboa (PAB)
Papua New Guinean kina (PGK)
Paraguayan Guarani (PYG)
Peru Sol (PEN)
Philippine Peso (PHP)
Polish Zloty (PLN)
Romanian Leu (RON)
Sao Tomean Dobra (STD)
Serbian Dinar (RSD)
Sri Lankan Rupee (LKR)
Sudanese Pound (SDG)
Syrian Pound (SYP)
Taiwan Dollar (TWD)
Tajikistani somoni (TJS)
Turkmenistan manat (TMT)
Tunisian Dinar (TND)
Iraqi Dinar (IQD)
Ukrainian Hryvnia (UAH)
Uruguayan Peso (UYU)
Uzbekistani Sum (UZS)
Venezuelan Bolivar (VEF)
West African CFA franc (XOF)
Vietnamese Dong (VND)
Special Drawing Rights (SDR)

Not all currencies are displayed

Single platform

Developer-centric

Rapidly integrate our currency exchange data into your project with modern languages, from Python to Golang. Using Twelve Data's API means less code maintenance and more time towards building a great product.

Simple forex documentation
Highly accurate rates with low response latency
Institutional-level security with 256-bit SSL encryption
Lightweight JSON & CSV formats
99.99% SLA uptime

API docs WebSocket docs

 API


 WebSocket


from twelvedata import TDClient
 
td = TDClient(apikey="YOUR_API_KEY_HERE")
 
ts = td.time_series(
    symbol="TSLA",
    interval="1min",
    outputsize=12,
)
 
print(ts.as_json())
 


#include <cjson/cJSON.h> // https://github.com/DaveGamble/cJSON
#include <curl/curl.h>
#include <iostream>
#include <memory>
 
const char* REQUEST_URL = "https://api.twelvedata.com/time_series?symbol=TSLA&interval=1min&outputsize=12&apikey=YOUR_API_KEY_HERE";
 
// Take response data and write into the string
std::size_t write_callback(const char* data, std::size_t size, std::size_t count, std::string* out) {
    const std::size_t result = size * count;
    out->append(data, result);
 
    return result;
}
 
int main() {
    std::unique_ptr<std::string> responseData(new std::string());
    cJSON* json = nullptr;
    CURL* curl = curl_easy_init();
 
    curl_easy_setopt(curl, CURLOPT_URL, REQUEST_URL);
    curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, responseData.get());
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
    curl_easy_perform(curl);
 
    json = cJSON_Parse(responseData->c_str());
    cJSON* metaField = cJSON_GetObjectItem(json, "meta");
    cJSON* valuesField = cJSON_GetObjectItem(json, "values");
    cJSON* symbolField = cJSON_GetObjectItem(metaField, "symbol");
    cJSON* closeField = cJSON_GetObjectItem(cJSON_GetArrayItem(valuesField, 0), "close");
 
    std::cout << "Received symbol: " << cJSON_GetStringValue(symbolField) << ", ";
    std::cout << "close: " << cJSON_GetStringValue(closeField) << std::endl;
 
    cJSON_Delete(json);
    curl_easy_cleanup(curl);
 
    return 0;
}
 


using System;
using System.Collections.Generic;
using System.Net;
using System.Text.Json;
 
namespace TwelveData
{
    public class TimeSeries
    {
        public Dictionary<string, string> meta { get; set; }
        public IList<Dictionary<string, string>> values { get; set; }
        public string status { get; set; }
    }
 
    class Prices
    {
        static void Main(string[] args)
        {
            using WebClient wc = new WebClient();
            var response = wc.DownloadString("https://api.twelvedata.com/time_series?symbol=TSLA&interval=1min&outputsize=12&apikey=YOUR_API_KEY_HERE");
            var timeSeries = JsonSerializer.Deserialize<TimeSeries>(response);
            if (timeSeries.status == "ok")
            {
                Console.WriteLine("Received symbol: " + timeSeries.meta["symbol"] + ", close: " + timeSeries.values[0]["close"]);
            }
        }
    }
}
 


import org.json.simple.parser.JSONParser;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
 
import java.util.Scanner;
import java.net.HttpURLConnection;
import java.net.URL;
 
public class Main {
    private static final String REQUEST_URL = "https://api.twelvedata.com/time_series?symbol=TSLA&interval=1min&outputsize=12&apikey=YOUR_API_KEY_HERE";
 
    public static void main(String[] args) throws Exception {
        URL requestURL = new URL(REQUEST_URL);
        HttpURLConnection connection = (HttpURLConnection)requestURL.openConnection();
        StringBuffer responseData = new StringBuffer();
        JSONParser parser = new JSONParser();
 
        connection.setRequestMethod("GET");
        connection.setRequestProperty("User-Agent", "twelve_java/1.0");
        connection.connect();
 
        if (connection.getResponseCode() != 200) {
            throw new RuntimeException("Request failed. Error: " + connection.getResponseMessage());
        }
 
        Scanner scanner = new Scanner(requestURL.openStream());
        while (scanner.hasNextLine()) {
            responseData.append(scanner.nextLine());
        }
 
        JSONObject json = (JSONObject) parser.parse(responseData.toString());
        JSONObject meta = (JSONObject) json.get("meta");
        JSONArray values = (JSONArray) json.get("values");
        
        connection.disconnect();
    }
}
 


# install.packages("RcppSimdJson")
 
apikey <- "YOUR_API_KEY_HERE"
qry <- paste0(
        "https://api.twelvedata.com/time_series?",
        "symbol=AAPL&interval=1min&outputsize=12",
        "&apikey=", apikey)
res <- RcppSimdJson::fload(qry)
res
 


# pip install twelvedata[websocket]
 
from twelvedata import TDClient
 
def on_event(e):
    print(e)
 
td = TDClient(apikey="YOUR_API_KEY_HERE")
ws = td.websocket(symbols="TSLA", on_event=on_event)
ws.connect()
ws.keep_alive()
 


#include <websocketpp/config/asio_client.hpp>
#include <websocketpp/client.hpp>
#include <cjson/cJSON.h>
 
#include <iostream>
#include <iomanip>
#include <ctime>
 
namespace wlib = websocketpp::lib;
namespace ssl = boost::asio::ssl;
 
typedef websocketpp::client<websocketpp::config::asio_tls_client> wclient;
typedef wlib::shared_ptr<wlib::asio::ssl::context> context_ptr;
 
const char* ENDPOINT = "wss://ws.twelvedata.com/v1/quotes/price?apikey=YOUR_API_KEY_HERE";
 
const char* SUBSCRIBE_ACTION = "{"\
    "\"action\": \"subscribe\"," \
    "\"params\": {" \
        "\"symbols\": \"TSLA\"" \
    "}" \
"}";
 
int main() {
    wclient::connection_ptr connection;
    wlib::error_code error_code;
    wclient client;
    
    client.set_access_channels(websocketpp::log::alevel::all);
    client.clear_access_channels(websocketpp::log::alevel::frame_payload);
    client.set_error_channels(websocketpp::log::elevel::all);
 
    // Initialize Boost.ASIO
    client.init_asio();
 
    // Set TLS initialize handler
    client.set_tls_init_handler(wlib::bind([](auto* hostname, auto hdl) {
        context_ptr context = wlib::make_shared<ssl::context>(ssl::context::sslv23);
        context->set_verify_mode(ssl::verify_none);
 
        return context;
    }, ENDPOINT, websocketpp::lib::placeholders::_1));
 
    // Is called after the WebSocket handshake is complete
    client.set_open_handler([&client](auto hdl) {
        // Send subscribe action to stream
        client.send(hdl, SUBSCRIBE_ACTION, websocketpp::frame::opcode::text);
    });
 
    // Receive and handle messages from server
    client.set_message_handler([](auto hdl, wclient::message_ptr message) {
        cJSON* json = cJSON_Parse(message->get_payload().c_str());
 
        if (json == nullptr) {
            std::cout << "received invalid JSON: " << std::endl << message->get_payload() << std::endl;
            return;
        }
 
        // Get event type
        cJSON* eventTypeField = cJSON_GetObjectItem(json, "event");
        if (eventTypeField == nullptr) {
            std::cout << "unknown JSON structure" << std::endl;
            return;
        }
 
        // Extract string from event type
        const char* eventType = cJSON_GetStringValue(eventTypeField);
        if (strcmp(eventType, "subscribe-status") == 0) {
            cJSON* statusField = cJSON_GetObjectItem(json, "status");
            const char* status = cJSON_GetStringValue(statusField);
 
            if (strcmp(status, "ok") != 0) {
                std::cout << "Failed subscribe to stream" << std::endl;
                return;
            }
 
            cJSON* successField = cJSON_GetObjectItem(json, "success");
            cJSON* failsField = cJSON_GetObjectItem(json, "fails");
 
            // Iterate over the symbols that were successfully subscribed
            for (int idx = 0; idx < cJSON_GetArraySize(successField); idx++) {
                cJSON* item = cJSON_GetArrayItem(successField, idx);
                cJSON* symbolField = cJSON_GetObjectItem(item, "symbol");
                const char* symbol = cJSON_GetStringValue(symbolField);
 
                std::cout << "Success subscribed to `"<< symbol << "` " << "symbol." << std::endl;
            }
 
            // If we're unable to subscribe to some symbols
            for (int idx = 0; 0 < cJSON_GetArraySize(failsField); idx++) {
                cJSON* item = cJSON_GetArrayItem(failsField, idx);
                cJSON* symbolField = cJSON_GetObjectItem(item, "symbol");
                const char* symbol = cJSON_GetStringValue(symbolField);
 
                std::cout << "Failed to subscribe on `"<< symbol << "` " << "symbol." << std::endl;
            }
 
            return;
        }
 
        if (strcmp(eventType, "price") == 0) {
            cJSON* timestampField = cJSON_GetObjectItem(json, "timestamp");
            cJSON* currencyField = cJSON_GetObjectItem(json, "currency");
            cJSON* symbolField = cJSON_GetObjectItem(json, "symbol");
            cJSON* priceField = cJSON_GetObjectItem(json, "price");
            time_t time = timestampField->valueint;
 
            std::cout << "[" << std::put_time(gmtime(&time), "%I:%M:%S %p") << "]: ";
            std::cout << "The symbol `" << cJSON_GetStringValue(symbolField) << "` ";
            std::cout << "has changed price to " << priceField->valuedouble << " ";
            
            if (currencyField != nullptr) {
                std::cout << "(" << cJSON_GetStringValue(currencyField) << ")" << std::endl;
            } else {
                std::cout << std::endl;
            }
            
            return;
        }
 
        // Free memory of JSON structure
        cJSON_Delete(json);
    });
 
    // New connection to WebSocket endpoint
    connection = client.get_connection(ENDPOINT, error_code);
    if (error_code) {
        std::cout << "Failed connection. Message: " << error_code.message() << std::endl;
        return -1;
    }
 
    // Connect to websocket endpoint
    client.connect(connection);
    client.run();
}
 


using System;
using WebSocket4Net; //https://github.com/kerryjiang/WebSocket4Net
 
namespace TwelveData
{
    class TDWebSocket
    {
        WebSocket ws = new WebSocket("wss://ws.twelvedata.com/v1/quotes/price?apikey=YOUR_API_KEY_HERE");
 
        static void Main()
        {
            new TDWebSocket().Init();
        }
 
        public void Init()
        {
            ws.Opened += OnOpen;
            ws.Closed += OnClose;
            ws.Error += OnError;
            ws.MessageReceived += OnEvent;
 
            ws.Open();
            Console.ReadLine();
        }
 
        private void OnOpen(object sender, EventArgs e)
        {
            Console.WriteLine("TDWebSocket opened!");
            ws.Send("{\"action\": \"subscribe\", \"params\":{\"symbols\": \"TSLA\"}}");
        }
 
        private void OnClose(object sender, EventArgs e)
        {
            Console.WriteLine("TDWebSocket closed");
        }
 
        private void OnError(object sender, SuperSocket.ClientEngine.ErrorEventArgs e)
        {
            Console.WriteLine("TDWebSocket ERROR: " + e.Exception.Message);
        }
 
        private void OnEvent(object sender, MessageReceivedEventArgs e)
        {
            Console.WriteLine(e.Message);
        }
    }
}
 


import org.java_websocket.handshake.ServerHandshake;
import org.java_websocket.client.WebSocketClient;
 
import org.json.simple.parser.ParseException;
import org.json.simple.parser.JSONParser;
import org.json.simple.JSONObject;
 
import java.net.URI;
 
public class Main {
    private static final String ENDPOINT = "wss://ws.twelvedata.com/v1/quotes/price?apikey=YOUR_API_KEY_HERE";
 
    public static void main(String[] args) throws Exception {
        WebSocketClient client = new WebSocketClient(new URI(ENDPOINT)) {
            @Override
            public void onOpen(ServerHandshake handshake) {
                System.out.println("TDWebSocket opened!");
                send("{\"action\": \"subscribe\", \"params\":{\"symbols\": \"TSLA\"}}");
            }
 
            @Override
            public void onMessage(String message) {
                JSONParser parser = new JSONParser();
                try {
                    JSONObject json = (JSONObject) parser.parse(message);
                    System.out.println(json);
                } catch(ParseException e) {
                    e.printStackTrace();
                }
            }
 
            @Override
            public void onClose(int status, String reason, boolean remote) {
                System.out.println("TDWebSocket closed.");
                this.close();
            }
 
            @Override
            public void onError(Exception e) {
                e.printStackTrace();
            }
        };
 
        client.connectBlocking();
    }
}
 


# install.packages("websocket")
 
library(websocket)
 
ws <- WebSocket$new("wss://ws.twelvedata.com/v1/quotes/price?apikey=YOUR_API_KEY_HERE")
ws$onOpen(function(event) {
    cat("TDWebSocket opened!\n")
})
ws$onClose(function(event) {
    cat("TDWebSocket closed with code ", event$code,
        " and reason ", event$reason, "\n", sep = "")
})
ws$onError(function(event) {
    cat("TDWebSocket ERROR: ", event$message, "\n")
})
ws$onMessage(function(event) {
    cat("Received event:", event$data, "\n")
})
 
ws$send('{"action": "subscribe", "params":{"symbols": "TSLA"}}')
 

 


Python


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C#


Java


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Strong core

Create powerful forex applications

Search

Easily add a lookup of any symbol into your app with the most effective search in the industry.

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Technical indicators

Extensive collection of indicators, ready to be used for technical analysis.

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Historical data

20+ years of historical exchange rates are available even with free plans.

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Highly scalable

Suitable from single-user apps to highly loaded systems with thousands of users.

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Institutional grade infrastructure. Designed to scale.

90,000,000+

Requests per day

2,000+

Pairs available

60,000+

Events per second

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