Introduction

Knot is a merchant connectivity platform that financial institutions and other businesses of all sizes with technology that connects their applications to the online merchant accounts of their end users. At a high level, Knot allows your application to read and write data to online merchant accounts for various use cases. CardSwitcher, for example, allows users to quickly and securely update their credit and debit cards on-file with merchants. This allows card issuers to improve and maintain top-of-wallet status across merchants. All integrations to Knot’s platform include two aspects:

A client-side SDK integration which handles credential validation, multi-factor authentication, and error handling.
A server-side integration to read data from & write data to Knot, as well as receive webhook events.