Other integrations
July 30, 2026
Integration paths beyond shop and CMS plugins: FlowAlp Pay custom API builds, form and donation flows, and pay links as no-code fallback.
Your platform is not covered by the e-commerce, CMS or business software catalogues? You can still accept FlowAlp Pay payments — this page maps the remaining routes, from a plain pay link to a fully custom API build.
Quick decision guide
| Situation | Recommended path |
|---|---|
| A plugin exists for your platform | Install and connect it — see the e-commerce overview |
| You need a button, invoice attachment or poster | Pay links and QR codes — no code at all |
| The checkout should appear inside your page | iFrame or modal embedding of a payment page or Gateway link |
| Custom checkout, app or bespoke basket logic | Gateway API, optionally with the PHP SDK |
| Payments collected through forms or donations | Form connectors or pay links — see below |
Custom builds with the Merchant API
- Your backend creates a Gateway with amount in minor units, ISO currency and your
referenceId. - Redirect the customer to the returned payment link, or embed it.
- Confirm the result through webhooks with signature verification.
- New to the API? Start with your first API request.
Forms and donation flows
Form tools with a payment connector — Gravity Forms on WordPress, aforms, or fundraising platforms such as Cura Fundraising — collect the payment as part of the submission. Where no connector exists, end the form with a pay link: create one link per purpose or amount and place it on the confirmation step. For printed campaigns, the QR-code variant of the same link works on posters, flyers and payment slips.
Pay links: the no-code fallback
A pay link created in the dashboard at https://pay.flowalp.com is a complete hosted checkout behind a URL. Share it by e-mail, chat, social media or QR code — it works anywhere a link works, with the payment methods of your account (TWINT, cards, wallets and more, depending on your account configuration).
Next step: still undecided? Choose an integration compares plugin, pay link and API side by side.