Frankfurter | Apiosk Gateway

About

Frankfurter publishes foreign-exchange reference rates sourced from the European Central Bank, updated every working day around 16:00 CET. Free and key-less. This listing proxies it through the Apiosk gateway with pay-per-call billing — latest rates, historical rates and currency conversion for the major world currencies.

Base URL

https://gateway.apiosk.com/frankfurter

Technical Specs

Auth Methodnone

Response FormatJSON

Endpoints2

Endpoints

Method	Path	Description	Cost
GET	/currencies	The list of supported currency codes and their full names.	$0.06 default	View details
GET	/latest	Latest ECB reference rates. Optional base currency and a symbols filter; omit both for all rates against EUR.	$0.06 default	View details

Endpoint documentation

GET/currencies

$0.06 default

Description

The list of supported currency codes and their full names.

Pricing

$0.06 default

Parameters

{}

Response schema

{
  "additionalProperties": {
    "type": "string"
  },
  "description": "Map of ISO 4217 currency code to full currency name.",
  "type": "object"
}

Example response

{
  "AUD": "Australian Dollar",
  "CAD": "Canadian Dollar",
  "CHF": "Swiss Franc",
  "EUR": "Euro",
  "GBP": "British Pound",
  "JPY": "Japanese Yen",
  "USD": "US Dollar"
}

GET/latest

$0.06 default

Description

Latest ECB reference rates. Optional base currency and a symbols filter; omit both for all rates against EUR.

Pricing

$0.06 default

Parameters

{
  "base": {
    "description": "Base currency (default EUR).",
    "example": "USD",
    "required": false,
    "type": "string"
  },
  "symbols": {
    "description": "Comma-separated target currencies to limit the result.",
    "example": "EUR,GBP,JPY",
    "required": false,
    "type": "string"
  }
}

Response schema

{
  "properties": {
    "amount": {
      "description": "The base amount the rates apply to (default 1).",
      "type": "number"
    },
    "base": {
      "description": "Base currency code.",
      "type": "string"
    },
    "date": {
      "description": "Rate date (YYYY-MM-DD).",
      "type": "string"
    },
    "rates": {
      "additionalProperties": {
        "type": "number"
      },
      "description": "Map of currency code to rate.",
      "type": "object"
    }
  },
  "type": "object"
}

Example response

{
  "amount": 1.0,
  "base": "USD",
  "date": "2026-07-02",
  "rates": {
    "EUR": 0.87727,
    "GBP": 0.75151,
    "JPY": 161.58
  }
}