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Paysum

Introduction

Create a store, sell your first product, and build integrations with Paysum.

Paysum is a hosted platform for selling digital products - license keys, files, Discord roles and more - with automated delivery, card, PayPal and crypto payments, custom domains and fraud protection. These docs cover running a store from the dashboard and integrating it with your own systems through the API.

Start with your store #

Create your first store

Name your shop, add a product, connect payments, and test the buyer’s journey.

Products and delivery

Set up variants, keys, downloads, and the information customers receive.

Connect payments

Configure the payment methods that work for your store and products.

Make it yours

Choose a theme, customize your storefront, and connect a domain.

Build on Paysum #

Preview the checkout embed

Try the real modal checkout, appearance settings, languages, and copy button code.

API reference

Explore supported endpoints, examples, errors, and the OpenAPI specification.

Hosted checkout

Create checkout sessions on your server and send buyers to payment.

Theme CLI

Edit your storefront in your own editor with a live preview, then publish.

MCP server

Let AI assistants manage products, coupons and your theme with a scoped key.

What the API covers #

The public API is organised by resource, each unlocked by its own key permission:

  • Store API - products, orders, customers, coupons and theme code for the store the key belongs to.
  • Checkout sessions - create hosted checkouts for custom line items or products in your store, then track or cancel them.
  • Withdrawals - read crypto wallet balances and send payouts to external addresses.
  • Customer balance - look up customers and credit or debit their store balance.

Prefer the dashboard?

Everything in the Guides tab can be done without code. The API is optional and only needed when you want to automate or embed Paysum in another product.