Basics
API for partners is an OAuth 2.0-based solution allowing applications (for example, CRM or CMS) to carry out transactions as Yandex.Checkout users and access private information without requesting the secret key.
Using this solution, you can create seamless integration for your users, for example, accepting payments in CMS and messengers or issuing invoices from CRM.
 How it works
To engage in the payment process on behalf of a Yandex.Checkout user, you will need to get their permission:
  1. Place the Connect to Yandex.Checkout button in the section accessible to your authorized users.
  2. When the user clicks the button, redirect them to the Yandex’s OAuth server page so they can grant you the rights.
    Only Yandex.Checkout users with the Owner role can grant rights.
  3. Once the user permits to act as them, you will receive an OAuth token. Use it to access the Yandex.Checkout API.
 Onboarding
Use Quick start for partners to complete all the main steps for integration with Yandex.Checkout.
 See also
Quick start for partnersOAuth authorization