Enable other businesses to accept payments directly

Install Stripe’s official libraries so you can access the API from your application:

# Available as a gem
sudo gem install stripe

# If you use bundler, you can add this line to your Gemfile
gem 'stripe'

When a user (seller or service provider) signs up on your platform, create a user Account (referred to as a connected account) so you can accept payments and move funds to their bank account. Connected accounts represent your user in Stripe’s API and help facilitate the collection of onboarding requirements so Stripe can verify the user’s identity. In our store builder example, the connected account represents the business setting up their Internet store.

Step 2.1: Create a Standard account and prefill information

Use the /v1/accounts API to create a Standard account and set type to standard in the account creation request.

curl https://api.stripe.com/v1/accounts \
  -u 
sk_test_4eC39HqLyjWDarjtT1zdp7dc
: \
  -d "type"="standard"

If you have previously collected information for your connected accounts, you can prefill that information on the account object for the user and it won’t be collected again in the Connect Onboarding flow. Connect Onboarding will only collect required information when you create or update an account.

Step 2.2: Create an account link

You can create an account link by calling the Account Links API with the following parameters:

• account
• refresh_url
• return_url
• type = account_onboarding

curl https://api.stripe.com/v1/account_links \
  -u 
sk_test_4eC39HqLyjWDarjtT1zdp7dc
: \
  -d "account"="acct_1032D82eZvKYlo2C" \
  -d "refresh_url"="https://example.com/reauth" \
  -d "return_url"="https://example.com/return" \
  -d "type"="account_onboarding"

Step 2.3: Redirect your user to the account link URL

The response to your Account Links request includes a value for the key url. Redirect to this link to send your user into the flow. URLs from the Account Links API are temporary and can be used only once because they grant access to the account holder’s personal information. Authenticate the user in your application before redirecting them to this URL. If you want to prefill information, you must do so before generating the account link. After you create the account link for a Standard account, you will not be able to read or write information for the account.

Step 2.4: Handle the user returning to your platform

Connect Onboarding requires you to pass both a return_url and refresh_url to handle all cases where the user will be redirected to your platform. It’s important that you implement these correctly to provide the best experience for your user.

return_url

Stripe issues a redirect to this URL when the user completes the Connect Onboarding flow. This does not mean that all information has been collected or that there are no outstanding requirements on the account. This only means the flow was entered and exited properly.

No state is passed through this URL. After a user is redirected to your return_url, check the state of the details_submitted parameter on their account by doing either of the following:

• Listening to account.updated webhooks
• Calling the Accounts API and inspecting the returned object

refresh_url

Your user will be redirected to the refresh_url in these cases:

• The link is expired (a few minutes went by since the link was created)
• The link was already visited (the user refreshed the page or clicked back or forward in the browser)
• Your platform is no longer able to access the account
• The account has been rejected

Your refresh_url should trigger a method on your server to call Account Links again with the same parameters, and redirect the user to the Connect Onboarding flow to create a seamless experience.

Step 2.5: Handle users that have not completed onboarding

A user that is redirected to your return_url might not have completed the onboarding process. Use the /v1/accounts endpoint to retrieve the user’s account and check for charges_enabled. If the account is not fully onboarded, provide UI prompts to allow the user to continue onboarding later. The user can complete their account activation through a new account link (generated by your integration). You can check the state of the details_submitted parameter on their account to see if they’ve completed the onboarding process.

Stripe Elements is a set of prebuilt UI components, like inputs and buttons, for building your checkout flow. If you’d rather not build your own payment form, consider Checkout, a Stripe-hosted page to accept payments for one-time purchases and subscriptions.

Elements

Checkout

What you're building

Clone from GitHub

Clone with CLI

Pay

Prefill card details

Step 3.1: Create a PaymentIntent Server-side

Stripe uses a PaymentIntent object to represent your intent to collect payment from a customer, tracking charge attempts and payment state changes throughout the process.

Create a PaymentIntent on your server with an amount and currency. Always decide how much to charge on the server side, a trusted environment, as opposed to the client. This prevents malicious customers from being able to choose their own prices.

curl

Ruby

Python

PHP

Java

Node

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.NET

Terminal

curl https://api.stripe.com/v1/payment_intents \
  -u 
sk_test_4eC39HqLyjWDarjtT1zdp7dc
: \
  -d "payment_method_types[]"=card \
  -d amount=1000 \
  -d currency="usd" \
  -d application_fee_amount="123" \
  -H "Stripe-Account: {{CONNECTED_STRIPE_ACCOUNT_ID}}"

In our store builder example, we want to build an experience where customers pay businesses directly. To set this experience up:

• Indicate a purchase from the business is a direct charge with the Stripe-Account header.
• Specify how much of the purchase from the business will go to the platform with application_fee_amount.

When a sale occurs, Stripe transfers the application_fee_amount from the connected account to the platform and deducts the Stripe fee from the connected account’s share. An illustration of this funds flow is below:

Included in the returned PaymentIntent is a client secret, which is used on the client side to securely complete the payment process instead of passing the entire PaymentIntent object. There are different approaches that you can use to pass the client secret to the client side.

Single-page application

Server-side rendering

You can retrieve the client secret from an endpoint on your server using the browser’s fetch function on the client side. This is generally the best approach when your client side is a single-page application, especially one built with a modern frontend framework such as React. This example shows how to create the server endpoint that serves the client secret:

Ruby

Python

PHP

Java

Node

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.NET

main.rb

get '/secret' do
  intent = # ... Create or retrieve the PaymentIntent
  {client_secret: intent.client_secret}.to_json
end

This example demonstrates how to fetch the client secret with JavaScript on the client side:

JavaScript

JavaScript (ESNext)

var response = fetch('/secret').then(function(response) {
  return response.json();
}).then(function(responseJson) {
  var clientSecret = responseJson.client_secret;
  // Call stripe.confirmCardPayment() with the client secret.
});

Step 3.2: Collect card details Client-side

You’re ready to collect card information on the client with Stripe Elements. Elements is a set of prebuilt UI components for collecting and validating card number, ZIP code, and expiration date.

A Stripe Element contains an iframe that securely sends the payment information to Stripe over an HTTPS connection. The checkout page address must also start with https:// rather than http:// for your integration to work.

You can test your integration without using HTTPS. Enable it when you’re ready to accept live payments.

Set up Stripe Elements

HTML + JS

React

Stripe Elements is automatically available as a feature of Stripe.js. Include the Stripe.js script on your checkout page by adding it to the head of your HTML file. Always load Stripe.js directly from js.stripe.com to remain PCI compliant. Do not include the script in a bundle or host a copy of it yourself.

checkout.html

<head>
  <title>Checkout</title>
  <script src="https://js.stripe.com/v3/"></script>
</head>

Create an instance of Elements with the following JavaScript on your checkout page:

script.js

// Initialize Stripe.js with the same connected account ID used when creating
// the PaymentIntent.
var stripe = Stripe(
'pk_test_TYooMQauvdEDq54NiTphI7jx', {
  stripeAccount: '{{CONNECTED_STRIPE_ACCOUNT_ID}}'
});

Add Elements to your payment page

Elements needs a place to live in your payment form. Create empty DOM nodes (containers) with unique IDs in your payment form and then pass those IDs to Elements.

checkout.html

View full sample

<form id="payment-form">
  <div id="card-element">
    <!-- Elements will create input elements here -->
  </div>

  <!-- We'll put the error messages in this element -->
  <div id="card-errors" role="alert"></div>

  <button id="submit">Pay</button>
</form>

When the form above has loaded, create an instance of an Element and mount it to the Element container:

client.js

View full sample

// Set up Stripe.js and Elements to use in checkout form
var elements = stripe.elements();
var style = {
  base: {
    color: "#32325d",
  }
};

var card = elements.create("card", { style: style });
card.mount("#card-element");

The card Element simplifies the form and minimizes the number of required fields by inserting a single, flexible input field that securely collects all necessary card and billing details. Otherwise, combine cardNumber, cardExpiry, and cardCvc Elements for a flexible, multi-input card form.

Always collect a postal code to increase card acceptance rates and reduce fraud.

The single input card Element automatically collects and sends the customer’s postal code to Stripe. If you build your payment form with multi-input card Elements (cardNumber, cardExpiry, cardCvc), add a separate input field for the customer’s postal code.

For a full list of supported Element types, refer to our Stripe.js reference documentation.

Elements validates user input as it is typed. To help your customers catch mistakes, listen to change events on the card Element and display any errors:

JavaScript

JavaScript (ESNext)

card.on('change', function(event) {
  var displayError = document.getElementById('card-errors');
  if (event.error) {
    displayError.textContent = event.error.message;
  } else {
    displayError.textContent = '';
  }
});

Postal code validation depends on your customer’s billing country. Use our international test cards to experiment with other postal code formats.

Step 3.3: Submit the payment to Stripe Client-side

Rather than sending the entire PaymentIntent object to the client, use its client secret from Step 3.1. This is different from your API keys that authenticate Stripe API requests.

The client secret should still be handled carefully because it can complete the charge. Do not log it, embed it in URLs, or expose it to anyone but the customer.

HTML + JS

React

To complete the payment when the user clicks, retrieve the client secret from the PaymentIntent you created in Step 3.1 and call stripe.confirmCardPayment with the client secret.

Pass additional billing details, such as the cardholder name and address, to the billing_details hash. The card Element automatically sends the customer’s postal code information. However, combining cardNumber, cardCvc, and cardExpiry Elements requires you to pass the postal code to billing_details[address][postal_code].

client.js

View full sample

var form = document.getElementById('payment-form');

form.addEventListener('submit', function(ev) {
  ev.preventDefault();
  stripe.confirmCardPayment(clientSecret, {
    payment_method: {
      card: card,
      billing_details: {
        name: 'Jenny Rosen'
      }
    }
  }).then(function(result) {
    if (result.error) {
      // Show error to your customer (e.g., insufficient funds)
      console.log(result.error.message);
    } else {
      // The payment has been processed!
      if (result.paymentIntent.status === 'succeeded') {
        // Show a success message to your customer
        // There's a risk of the customer closing the window before callback
        // execution. Set up a webhook or plugin to listen for the
        // payment_intent.succeeded event that handles any business critical
        // post-payment actions.
      }
    }
  });
});

stripe.confirmCardPayment may take several seconds to complete. During that time, disable your form from being resubmitted and show a waiting indicator like a spinner. If you receive an error, show it to the customer, re-enable the form, and hide the waiting indicator.

If the customer must authenticate the card, Stripe.js walks them through that process by showing them a modal. You can see an example of this modal experience by using the test card number 4000002500003155

with any CVC, future expiration date, and postal code in the demo at the top of the page.

When the payment completes successfully, the value of the returned PaymentIntent’s status property is succeeded. Check the status of a PaymentIntent in the Dashboard or by inspecting the status property on the object. If the payment is not successful, inspect the returned error to determine the cause.

Step 3.4: Fulfillment Server-side

After payment is completed, you must handle any necessary fulfillment. For example, a store builder must alert the business to send the purchased item to the customer.

Configure a webhook endpoint in your dashboard (for events from your Connect applications).

Then create an HTTP endpoint on your server to monitor for completed payments to then enable your users (connected accounts) to fulfill purchases.

Ruby

Python

PHP

Java

Node

Go

.NET

server.rb

# Using Sinatra.
require 'sinatra'
require 'stripe'

set :port, 4242
# Set your secret key. Remember to switch to your live secret key in production.
# See your keys here: https://dashboard.stripe.com/apikeys
Stripe.api_key = 
"sk_test_4eC39HqLyjWDarjtT1zdp7dc"

# If you are testing your webhook locally with the Stripe CLI you
# can find the endpoint's secret by running `stripe listen`
# Otherwise, find your endpoint's secret in your webhook settings in
# the Developer Dashboard
endpoint_secret = 'whsec_...'

post '/webhook' do
  payload = request.body.read
  sig_header = request.env['HTTP_STRIPE_SIGNATURE']

  event = nil

  # Verify webhook signature and extract the event.
  # See https://stripe.com/docs/webhooks/signatures for more information.
  begin
    event = Stripe::Webhook.construct_event(
      payload, sig_header, endpoint_secret
    )
  rescue JSON::ParserError => e
    # Invalid payload.
    status 400
    return
  rescue Stripe::SignatureVerificationError => e
    # Invalid Signature.
    status 400
    return
  end

  if event['type'] == 'payment_intent.succeeded'
    payment_intent = event['data']['object']
    connected_account_id = event['account']
    handle_successful_payment_intent(connected_account_id, payment_intent)
  end

  status 200
end

def handle_successful_payment_intent(connected_account_id, payment_intent)
  # Fulfill the purchase.
  puts 'Connected account ID: ' + connected_account_id
  puts payment_intent.to_s
end

Learn more in our fulfillment guide for payments.

Testing webhooks locally

Testing webhooks locally is easy with the Stripe CLI.

1. First, install the Stripe CLI on your machine if you haven’t already.

2. Then, to log in run stripe login in the command line, and follow the instructions.

3. Finally, to allow your local host to receive a simulated event on your connected account run stripe listen --forward-connect-to localhost:{PORT}/webhook in one terminal window, and run stripe trigger --stripe-account={{CONNECTED_STRIPE_ACCOUNT_ID}} payment_intent.succeeded (or trigger any other supported event) in another.

You now have a working integration. From your account dashboard, you can view an account and its balance.

Payouts

By default, any charge that you create for a connected account accumulates in the connected account’s Stripe balance and is paid out on a daily rolling basis. Standard accounts manage their own payout schedules in their Dashboard.

Testing

Test your account creation flow by creating accounts and using OAuth. You can use the available test cards to test your payments flow and simulate various payment outcomes.

Other resources

You have completed the steps required to build a working Connect integration. Based on your business needs, you can also do the following:

Manage connected accounts

Customize payments