Here you will find instructions to add the Onramper widget in your website or application. With just a few lines of code, you can allow your users to purchase cryptocurrencies from your web or app.

You can integrate the widget in four different ways:
· Redirect your users to the widget URL with a referral link. See more.
· Use an iframe or a webview to embed the widget in your application. See more.
· Import a component in your React application. See more.
· Add it to your static webpage using a CDN import. See more.

API Key

To allow users to buy crypto, you need an API key. To get an API key, fill in our onboarding form. Add your API key as a parameter in the URL of the code snippet as follows: https://widget.onramper.com?apiKEY=theAPIkeyyoureceived.

Referral link

You can simply add a link to your app or website to redirect users to a page (hosted by us) where the users can buy crypto. The widget url is https://widget.onramper.com

If you want to receive a referral fee for every transaction done by users coming from your website, fill in our onboarding form to receive your API key and then add your API key to the link as follows: https://widget.onramper.com?apiKEY=theAPIkeyyoureceived.

HTML code snippet

<a href="https://widget.onramper.com?color=1d2d50" target="_blank">
  Buy cryptocurrencies
</a>

Live example & customization

Easily customize the buy-page by changing the URL with the available URL parameters.

Redirect customization examples: CodeSandbox

Iframe

Embed an iframe in your website. This is the easiest way to add the widget on your own page. Just copy-paste the code snippet below in your page. Customize your widget by adding URL parameters.

Note: In order to enable the widget for transactions, don't forget to add your API key. In order to enable some features in the widget, don't forget to add the allow attribute to the iframe element.

HTML code snippet

<iframe
  src="https://widget.onramper.com?color=346eeb"
  height="595px"
  width="440px"
  title="Onramper widget"
  frameborder="0"
  allow="accelerometer;
  autoplay; camera; gyroscope; payment"
  style="box-shadow: 3px 3px 5px 0px
  rgba(0,0,0,0.75);"
>
  <a href="https://widget.onramper.com" target="_blank">Buy crypto</a>
</iframe>

Live example & customization

Iframe customization example

URL parameters

You can pass some arguments as query parameters to the URL to customize the widget

Name	Format	Example	Default value
apiKey	Alphanumeric string	`?apiKey=yourAPIkey` (fill in our onboarding form to receive your API key)	Not set
defaultCrypto	Cryptocurrency code	`?defaultCrypto=BTC`	BTC
defaultFiat	Fiat code	`?defaultFiat=EUR`	USD
defaultAmount	Positive integer	`?defaultAmount=500`	100
wallets	Comma-separated list of crypto code:address pairs	`?wallets=BTC:btcaddr,ETH:erc20addr`	Not set
onlyCryptos	Comma-separated list of crypto codes	`?onlyCryptos=BTC,ETH,NEO`	Not set
excludeCryptos	Comma-separated list of crypto codes	`?excludeCryptos=BTC,ETH,NEO`	Not set
excludeFiat	Comma-separated list of fiat codes	`?excludeCryptos=EUR,USD`	Not set
onlyFiat	Comma-separated list of fiat codes	`?onlyFiat=EUR,USD`	Not set
onlyGateways	Comma-separated list of gateway identifiers	`?onlyGateways=Wyre,Moonpay`	Not set
isAddressEditable	Boolean value	`?isAddressEditable=false`	true
color	Hexadecimal color	`?color=346eeb`	31a5ff

React component

You can also import the widget as a component in your React application.

Installation

# Using yarn
$ yarn add @onramper/widget

# Using npm
$ npm install @onramper/widget

Code snippet

import OnramperWidget from "@onramper/widget";

const userAddresses = {
    "BTC": ["addr1"],
    "ETH": ["add1r","addr2"]
}

export default function WidgetContainer() {
  return (
    <div
      style={{
        width: "440px",
        height: "595px"
      }}
    >
      <OnramperWidget defaultCrypto="BTC" />
    </div>
  )


  <OnramperWidget defaultAddrs={userAddresses} />;
}

Live example & customization

While importing the widget as a React component, you can customize it using the component props below. CodeSandbox

Component props

Name	Type	Example	Default value
API_KEY	string?	`"yourAPIkey"` (fill in our onboarding form to receive your API key)	undefined
defaultCrypto	string?	`"ETH"`	undefined
defaultFiat	string?	`"EUR"`	"USD"
defaultAmount	number?	`500`	100
defaultAddrs	object?	`{"BTC":["ADDR1"], "ETH":["ADDR2"]}`	{}
onlyCryptos	string[]?	`["BTC", "ETH", "NEO"]`	undefined
excludeCryptos	string[]?	`["ETH", "NEO"]`	undefined
onlyFiat	string[]?	`["USD", "EUR"]`	undefined
excludeFiat	string[]?	`["USD"]`	undefined
onlyGateways	string[]?	`["Wyre", "Moonpay"]`	undefined
isAddressEditable	boolean?	`false`	true
color	string?	`"#000000"`	"#31a5ff"

Javascript

Setup

Add an empty div tag to mark the spot where you want to display the widget and add a unique id to it.

<div id="onramper-widget"></div>

Then, add three script tags to load the necessary dependencies (React, ReactDOM) and the widget:

<!-- Load React. -->
<!-- Note: when deploying, replace "development.js" with "production.min.js". -->
<script
  src="https://unpkg.com/react@16/umd/react.development.js"
  crossorigin
></script>
<script
  src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"
  crossorigin
></script>

<!-- Load Onramper's widget. -->
<script src="https://unpkg.com/@onramper/widget/index.js" crossorigin></script>

After the three scripts load, add the widget to the DOM invoking the initialize function

Onramper.initialize("#onramper-widget");

Code snippet

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>Static website</title>
    <script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script>
    <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script>
    <script src="https://unpkg.com/@onramper/widget/index.js" crossorigin></script>
    <style>
      html,
      body {
        margin: 0;
        height: 100%;
      }
      #onramper-widget {
        width: 440px;
        height: 595px;
        box-shadow: 3px 3px 5px 0px rgba(0, 0, 0, 0.75);
        margin: 3rem auto;
      }
    </style>
  </head>
  <body>
    <div id="onramper-widget"></div>
    <script>
      Onramper.initialize("#onramper-widget");
    </script>
  </body>
</html>

Live example

CodeSandbox

Initialize parameters

Name	Type	Example	Default value
API_KEY	string?	`Onramper.initialize("#id", {API_KEY:"YourAPIkey"})` (fill in our onboarding form to receive your API key)	undefined
defaultCrypto	string?	`Onramper.initialize("#id", {defaultCrypto:"ETH"})`	undefined
defaultFiat	string?	`Onramper.initialize("#id", {defaultFiat:"EUR"})`	"USD"
defaultAmount	number?	`Onramper.initialize("#id", {defaultAmount:500"})`	100
defaultAddrs	object?	`Onramper.initialize("#id", {defaultAddrs:{"BTC":["ADDR1"], "ETH":["ADDR2"]}})`	{}
onlyCryptos	string[]?	`Onramper.initialize("#id", {onlyCryptos:["BTC", "ETH", "NEO"]})`	undefined
excludeCryptos	string[]?	`Onramper.initialize("#id", {excludeCryptos:["ETH", "NEO"]})`	undefined
onlyFiat	string[]?	`Onramper.initialize("#id", {onlyFiat:["EUR"]})`	undefined
excludeFiat	string[]?	`Onramper.initialize("#id", {excludeFiat:["EUR"]})`	undefined
onlyGateways	string[]?	`Onramper.initialize("#id", {onlyGateways:["Moonpay"]})`	undefined
isAddressEditable	boolean?	`Onramper.initialize("#id", {isAddressEditable:false"})`	true
color	string?	`Onramper.initialize("#id", {color:"#000000"})`	"#31a5ff"

Native apps

You can also include Onramper's widget in any native application using a WebView or any component that is able to render a website, as if it was an iframe, for this, you should point the source URI to https://widget.onramper.com?apiKey=YOURAPIKEY. You can also customize it using the URL parameters.

Don't forget that iframes and webviews are isolated components so you should enable some features in order to allow the widget to work properly.

This features are:

Camera and storage permission (in order to upload KYC documents)
Features: accelerometer; autoplay; camera; gyroscope; payment (required by one or more gateways in order to work properly)
Allow third party cookies (used by one or more gateways)
Allow the webview to open URLs with the OS browser (payment redirects required by one or more gateways)

Customize

You can pass the following arguments to customize the widget

Name	Description
API_KEY	Production or test API Key.
defaultCrypto	Select a specific cryptocurrency by default. Should be specified the cryptocurrency code.
defaultFiat	Fiat currency to select by default when the country currency is unavailable.
defaultAmount	Positive integer representing the base amount of fiat to be filled in the widget. Should be indicated in USD, for other currencies, a rounded aproximated conversion will be automatically applied.
defaultAddrs \| wallets	A stringified JSON with the wallet addresses of the user. The keys should be the cryptocurrency code and the value a list containing the user addresses. Can be more than one address per wallet and more than one cryptocurrency.
onlyCryptos	A comma-separated list of crypto codes to include. Only this cryptos will be shown to the user.
excludeCryptos	A comma-separated list of crypto codes to exclude. This cryptos will be excluded from the list of available cryptos.
onlyFiat	Only the fiat currencies added there will be available to pick.
excludeFiat	The fiat currencies added there will be excluded from the available ones.
onlyGateways	Only the gateways added here will be availables. By default all are availables.
isAddressEditable	Allow the user to edit the crypto address that is passed through the parameter defaultAddrs or wallets.
color	Color to change the highlight of the widget. Should be an hex color.