# Paysum API Documentation

## Docs

- [Authentication](https://developers.paysum.io/api-reference/authentication.md): (Required) Use Paysum API key to authenticate your requests
- [Introduction](https://developers.paysum.io/api-reference/introduction.md): Learn how to use Paysum to create on-demand payments
- [Create Payment](https://developers.paysum.io/api-reference/payments/create.md): Create a payment
- [Webhooks](https://developers.paysum.io/api-reference/webhooks.md): Webhooks are used to receive real-time notifications about payment events or e-commerce notifications

## OpenAPI Specs

- [openapi](https://developers.paysum.io/api-reference/openapi.json)

## Optional

- [Help Center](https://help.paysum.io)
- [Discord Server](https://discord.gg/paysum)
- [Telegram Channel](https://t.me/paysumupdates)