Developer overview

Everything you need to integrate MONEI into your website or app. Pick an integration approach, then wire up the API, client SDK, and webhooks.

Choose your integration

• Prebuilt payment page — redirect to a MONEI-hosted checkout with every payment method, almost no frontend code.
• Custom checkout — collect payment details on your own page with MONEI.js Components.
• Payments API — create and manage payments server-to-server.

Core building blocks

• REST API reference — every endpoint, with request and response schemas.
• GraphQL API — for MONEI Connect partners.
• MONEI.js — the client library for Components and .
• Webhooks — receive the authoritative payment status on your server.
• Channel tokenization — reuse saved payment methods across channels.

Before you go live

Test and go live — use test cards, Bizum, and PayPal to validate your integration, then switch to live keys.

Common questions

Which integration should I pick?

If you want the least work, use the prebuilt payment page. If you need the checkout to live on your own page, use a custom checkout. Use the API directly only when you process server-to-server.

How do I confirm a payment really succeeded?

Always rely on the webhook sent to your server — never the client-side result alone.