Website Twitter Discord

🛒Checkout Widget

Embed crypto payments in your website or app with a few lines of code

Integrate the Helio Checkout Widget with a few lines of code into any website or app to accept payments in USDC & 100s of digital currencies across Solana, Ethereum, Polygon, Bitcoin, as well as card payments via a simple "on-ramp" flow.

We offer a Vanilla JS & React integration, each with a broad range of config options to customise the checkout for your theme

Customise your widget

Helio Checkout (Vanilla JS)

Our standard way to embed our checkout is with our JS/HTML embed.

This is ideal if you would like to embed the Helio Checkout in your website. Log into Helio and generate the code snippet on step 4 of our Pay Link creation as follows:

Helio Checkout (React)

If you have a React based app, then the easiest way to embed Helio Checkout is with our React component.

Install the dependancy:

yarn add @heliofi/checkout-react
# or npm install @heliofi/checkout-react

Then in your React components import it in (simply grab the example code snippet for our React component on step 4 when creating your Pay Link.)

import {HelioCheckout} from '@heliofi/checkout-react'

const helioConfig = {
    paylinkId: "6571e7cd4a2bee8095ee84da",
    amount: "5.99",
};

function YourCheckoutComponent() {
  return <HelioCheckout config={helioConfig} />;
}

Note: if you are dynamically generating the config object, we recommend wrapping it in `useMemo()`

Config options

The configuration options object is the same for our Vanilla JS and React version.

Common config options:

  • paylinkId (required)

    • This is the ID for the Pay Link you would like to embed

    • example: paylinkId: "6571e7cd4a2bee1095ee84da"

  • network (optional - default is main)

    • values: main or test

    • example: network: "test"

    • This is only required if you generated a Pay Link on our dev/testnet site `https://app.dev.hel.io/`

    • See note below how our network value works.

  • paymentType (optional - default is paylink)

    • values: paylink or paystream

    • example: paymentType: "paystream"

    • This is only required if you set up a recurring paystream embed.

    • If your Pay Link is recurring, the code snippet on step 4 will already include paymentType: "paystream"

  • platform only if you are embedding from presale.magiceden.io

    • If you are embedding our checkout for a Pay link created from https://app.hel.io you should not set this value.

    • This will automatically be added to the code snippet on step 4 of Pay Link creation if you are on https://presale.magiceden.io

    • values: magic_eden

    • example: platform: "magic_eden"

Customising the look of the embed:

  • display (optional - default is inline)

    • values: button or inline

    • example: display: "button"

    • Use this to display a button which opens up a modal with our checkout flow

  • primaryPaymentMethod (optional - default is crypto)

    • values: crypto or fiat

    • example: primaryPaymentMethod: "fiat"

    • If set to fiat, then 'pay with card' will be the default button option.

  • customTexts (optional)

    • Use this to override some texts/copy within the embed.

    • Current options are as follows:

{
  customTexts: {
    mainButtonTitle: "Click to pay now"
  }
}

  • theme (optional)

    • Use this to override theming options within the embed.

    • themeMode (use this to switch between light or dark appearances):

      • values: light or dark

    • Example usage:

{
    paylinkId: "6571e7cd4a2bee1095ee84da",
    theme: {
        themeMode: "dark", // or "light"
    }
}

  • primaryColor (optional, required when neutralColor is defined)

    • Use this to customise main colours within the embed

  • neutralColor (optional, required when primaryColor is defined)

    • Use this to customise neutral colours such as border and text colours within the embed

    • Example usage:

{
    paylinkId: "6571e7cd4a2bee1095ee84da",
    primaryColor: "#E60000",
    neutralColor: "#5A6578"
}

  • showPayWithCard (optional - default is true)

    • Use this to remove the 'Pay with card' button from the embed.

    • values: true or false

    • example: showPayWithCard: false

Dynamic config options

If you have a dynamic payment (where you programatically set the amount and other data) then you will need to use these options:

  • amount (required for dynamic payments)

    • values: a string value

    • example: amount: "5.99"

    • This will be the amount of the payment currency

  • Use step 2 of the Pay link creation process on https://app.hel.io to set the currencies you will receive in.

Callback config options

Use our callbacks to run Javascript code when certain actions occur.

You can use these to trigger changes in your application.

  • onSuccess

  • onError

  • onPending

  • onCancel

  • onStartPayment

Example:

{
  // ... (your other config options) ...
  onSuccess: event => console.log(event),
  onError: event => console.log(event),
  onPending: event => console.log(event),
  onCancel: () => console.log("Cancelled payment"),
  onStartPayment: () => console.log("Starting payment"),
}

In addition, we recommend using our webhooks to verify transaction on your backend. You can find an end-to-end developer example here including the Checkout Widget and webhooks here:

Advanced config options:

  • debug (optional - default is false)

    • true or false

    • example: debug: true

    • if true then it will output some helpful debug information

  • additionalJSON (optional)

    • values can be any valid JSON data.

    • example: additionalJSON: {customerId: "customer1", product: "T-shirt"}

    • Anything you pass in here will get stored when a customer makes a transaction.

    • You can retrieve this on transactions by listening for our webhooks, which include all relevant values

Our network options for testnet

When you generate a paylink on app.dev.hel.io (for test transactions), then you must set network: "test" in your config.

If you generate on app.hel.io (mainnet) you do not need to set network config options!

(You cannot set network: "test" for a paylink generated on app.hel.io)

The testnets that we use for each blockchain are described below:

  • Solana:

    • main = mainnet

    • test = devnet

  • Ethereum

    • main = mainnet

    • test = Sepolia

  • Polygon

    • main = mainnet

    • test = Mumbai

  • Bitcoin

    • main = mainnet

    • test = testnet3

Supported Currencies

Use our Swagger API to get a list of currencies currently supported : https://api.hel.io/v1/docs#/Currency/CurrencyController_value

Try it out with currency 'type' of "DIGITAL" to return all supported currencies

Or pull directly from : https://api.hel.io/v1/currency?type=DIGITAL

PreviousHelio API keyNextWebhooks

Last updated