Add to website

A pay button on any website.

Press Add to website on any pay link and paste one line into your site. Or install the WordPress plugin. Or put the link on any button in Wix, Squarespace or Shopify. Works on any site, whoever built it.

One line, any site

Press Add to website on a pay link. Copy the line. Paste it where you want the button. The button opens your pay page.

WordPress plugin

Install the Flow plugin, paste your API key once, and use a shortcode on any page or post for a button, a pay link or an open-amount form.

Wix, Squarespace, Shopify

Any button that can hold a web address can hold a pay link. Paste the link into the button and you are done.

What the button does

It opens your pay page in the customer's browser, on your domain or on Flow's. Card and bank numbers go into secure fields served by our licensed processor; they never touch your website.

  • No card data on your server, so nothing for your site to protect
  • Your name and brand on the pay page
  • A receipt both ways when it clears
  • Every payment listed under the link in your account
<script src="https://flow.darkwater.work/button.js"
  data-link="k9d2qf" data-text="Pay deposit"></script>

The line Add to website gives you. The link code is yours; the text is whatever you want on the button.

Dark Water websites have it built in

A site built by Dark Water comes with the pay button wired to your own Flow account. Nothing to paste.

From invoice to paid.

Create your account, connect your bank, send your first payment link. One price per payment, one deposit, your name on everything. No monthly fee.