Fixer API

Fixer API

Foreign exchange rates and currency conversion JSON API.
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170 World Currencies
Currency Conversion Endpoints
Trusted Sources
Historical Data
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170 World Currencies
Currency Conversion Endpoints
Trusted Sources
Historical Data
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170 World Currencies
Currency Conversion Endpoints
Trusted Sources
Historical Data
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170 World Currencies
Currency Conversion Endpoints
Trusted Sources
Historical Data

Powered by 15+ exchange rate data sources, the Fixer API is capable of delivering real-time exchange rate data for 170 world currencies. The API comes with multiple endpoints, each serving a different use case. Endpoint functionalities include getting the latest exchange rate data for all or a specific set of currencies, converting amounts from one currency to another, retrieving Time-Series data for one or multiple currencies and querying the API for daily fluctuation data.

Available Endpoints

  • /symbols Returns all available currencies.
  • /latest Returns real-time exchange rate data for all available or a specific set of currencies.
  • /convert Allows for conversion of any amount from one currency to another.
  • /{date} Returns historical exchange rate data for all available or a specific set of currencies.
  • /timeseries Returns daily historical exchange rate data between two specified dates for all available or a specific set of currencies.
  • /fluctuation Returns fluctuation data between two specified dates for all available or a specific set of currencies.

Supported Symbols

The Fixer API comes with a constantly updated endpoint returning all available currencies. To access this list, make a request to the API's symbols endpoint.


{
  "success": true,
  "symbols": {
    "AED": "United Arab Emirates Dirham",
    "AFN": "Afghan Afghani",
    "ALL": "Albanian Lek",
    "AMD": "Armenian Dram",
    [...] 
    }
}

Tips

To reduce bandwidth you can limit the number of output currencies to a specific set of your choice on most API endpoints. To do so, simply append the Fixer API's symbols parameter to your API request and set it to one or more comma-separated currency codes.


curl --request GET 'https://api.apilayer.com/fixer/latest?base=USD&symbols=EUR,GBP' \
--header 'apikey: YOUR API KEY'

It is also possible to convert currencies using historical exchange rate data. To do this, please also use the API's date parameter and set it to your preferred date. (format YYYY-MM-DD)


curl --request GET 'https://api.apilayer.com/fixer/convert?base=USD&symbols=EUR,GBP,JPY&amount=5&date=2018-01-01' \
--header 'apikey: YOUR API KEY'

Fixer API Reference

This API is organized around REST. Our API has predictable resource-oriented URLs, accepts form-encoded request bodies, returns JSON-encoded responses, and uses standard HTTP response codes, authentication, and verbs.

Just Getting Started?

Check out our development quickstart guide.

Authentication

Fixer API uses API keys to authenticate requests. You can view and manage your API keys in the Accounts page.

Your API keys carry many privileges, so be sure to keep them secure! Do not share your secret API keys in publicly accessible areas such as GitHub, client-side code, and so forth.

All requests made to the API must hold a custom HTTP header named "apikey". Implementation differs with each programming language. Below are some samples.

All API requests must be made over HTTPS. Calls made over plain HTTP will fail. API requests without authentication will also fail.

Endpoints

Currency conversion endpoint, which can be used to convert any amount from one currency to another. In order to convert currencies, please use the API's convert endpoint, append the from and to parameters and set them to your preferred base and target currency codes.

Parameters

amount (required)

The amount to be converted.

Location: Query, Data Type: string

from (required)

The three-letter currency code of the currency you would like to convert from.

Location: Query, Data Type: string

to (required)

The three-letter currency code of the currency you would like to convert to.

Location: Query, Data Type: string

date (optional)

Specify a date (format YYYY-MM-DD) to use historical rates for this conversion.

Location: Query, Data Type: string

** A word enclosed with curly brackets "{ }" in the code means that it is a parameter and it should be replaced with your own values when executing. (also overwriting the curly brackets).
Returns

Below is a sample response from the endpoint


If you wish to play around interactively with real values and run code, see...

Fluctuation endpoint you will be able to retrieve information about how currencies fluctuate on a day-to-day basis. To use this feature, simply append a start_date and end_date and choose which currencies (symbols) you would like to query the API for. Please note that the maximum allowed timeframe is 365 days.

Parameters

end_date (required)

The end date of your preferred timeframe.

Location: Query, Data Type: string

start_date (required)

The start date of your preferred timeframe.

Location: Query, Data Type: string

base (optional)

Enter the three-letter currency code of your preferred base currency.

Location: Query, Data Type: string

symbols (optional)

Enter a list of comma-separated currency codes to limit output currencies.

Location: Query, Data Type: string

** A word enclosed with curly brackets "{ }" in the code means that it is a parameter and it should be replaced with your own values when executing. (also overwriting the curly brackets).
Returns

Below is a sample response from the endpoint


If you wish to play around interactively with real values and run code, see...

Returns real-time exchange rate data updated every 60 minutes, every 10 minutes or every 60 seconds.

Parameters

base (optional)

Enter the three-letter currency code of your preferred base currency.

Location: Query, Data Type: string

symbols (optional)

Enter a list of comma-separated currency codes to limit output currencies.

Location: Query, Data Type: string

** A word enclosed with curly brackets "{ }" in the code means that it is a parameter and it should be replaced with your own values when executing. (also overwriting the curly brackets).
Returns

Below is a sample response from the endpoint


If you wish to play around interactively with real values and run code, see...

Returning all available currencies.

Parameters
No parameters.
Returns

Below is a sample response from the endpoint


If you wish to play around interactively with real values and run code, see...

Timeseries endpoint lets you query the API for daily historical rates between two dates of your choice, with a maximum time frame of 365 days.

Parameters

end_date (required)

The end date of your preferred timeframe.

Location: Query, Data Type: string

start_date (required)

The start date of your preferred timeframe.

Location: Query, Data Type: string

base (optional)

Enter the three-letter currency code of your preferred base currency.

Location: Query, Data Type: string

symbols (optional)

Enter a list of comma-separated currency codes to limit output currencies.

Location: Query, Data Type: string

** A word enclosed with curly brackets "{ }" in the code means that it is a parameter and it should be replaced with your own values when executing. (also overwriting the curly brackets).
Returns

Below is a sample response from the endpoint


If you wish to play around interactively with real values and run code, see...

Historical rates are available for most currencies all the way back to the year of 1999. You can query the Fixer API for historical rates by appending a date (format YYYY-MM-DD) to the base URL.

Parameters

date (required)

A date in the past for which historical rates are requested.

Location: Path, Data Type: string

base (optional)

Enter the three-letter currency code of your preferred base currency.

Location: Query, Data Type: string

symbols (optional)

Enter a list of comma-separated currency codes to limit output currencies.

Location: Query, Data Type: string

** A word enclosed with curly brackets "{ }" in the code means that it is a parameter and it should be replaced with your own values when executing. (also overwriting the curly brackets).
Returns

Below is a sample response from the endpoint


If you wish to play around interactively with real values and run code, see...

Rate Limiting

Each subscription has its own rate limit. When you become a member, you start by choosing a rate limit that suits your usage needs. Do not worry; You can upgrade or downgrade your plan at any time. For this reason, instead of starting with a larger plan that you do not need, we can offer you to upgrade your plan after you start with "free" or "gold plan" options and start using the API.

When you reach a rate limit (both daily and monthly), the service will stop responding and returning the HTTP 429 response status code (Too many requests) for each request with the following JSON string body text.

{
"message":"You have exceeded your daily\/monthly API rate limit. Please review and upgrade your subscription plan at https:\/\/apilayer.com\/subscriptions to continue."
}

A reminder email will be sent to you when your API usage reaches both 80% and 90%, so that you can take immediate actions such as upgrading your plan in order to prevent your application using the API from being interrupted.

You can also programmatically check your rate limit yourself. As a result of each request made to the APILayer, the following 4 fields provide you with all the necessary information within the HTTP Headers.

x-ratelimit-limit-month: Request limit per month
x-ratelimit-remaining-month: Request limit remaining this month
x-ratelimit-limit-day: Request limit per day
x-ratelimit-remaining-day: Request limit remaining today

You can contact our support unit if you need any assistance with your application regarding to handle the returned result by looking at the header information.

Error Codes

APILayer uses standard HTTP response codes to indicate the success or failure of an API request. In general: Codes in the 2xx range indicate success. Codes in the 4xx range indicate a clientside error, which means that failed given the information provided (e.g., a missing parameter, unauthorized access etc.). Codes in the 5xx range indicate an error with APILayer's servers (normally this should'nt happen at all).

If the response code is not 200, it means the operation failed somehow and you may need to take an action accordingly. You can check the response (which will be in JSON format) for a field called 'message' that briefly explains the error reported.

Status Code Explanation
400 - Bad Request The request was unacceptable, often due to missing a required parameter.
401 - Unauthorized No valid API key provided.
404 - Not Found The requested resource doesn't exist.
429 - Too many requests API request limit exceeded. See section Rate Limiting for more info.
5xx - Server Error We have failed to process your request. (You can contact us anytime)

You can always contact for support and ask for more assistance. We'll be glad to assist you with building your product.

Reviews

5.00
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Pro grovv
2 weeks ago

Pro grovv

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Amazing API, so helpful!

Sss Sss
1 months ago

Sss Sss

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Amazing API, accurate and fast results! I love it

duccywastaken@protonmail.com
2 months ago

[email protected]

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Amazing API, accurate and fast results! I love it

Raaj Bedi
3 months ago

Raaj Bedi

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It's amazing. No doubt in it. I was as a developer fetch and play with data and update my rates using code in quick way. It provides rate as quick as 1s for all requests raised.

Mert Deniz Akbaş
5 months ago

Mert Deniz Akbaş

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it's amazing and very very helpful for homework