Knot is the first merchant connectivity platform offering card-on-file switching for hundreds of online merchant accounts. Major financial institutions and startups embed Knot’s SDK to power customer experiences. Headquartered in New York City, Knot was founded in 2021 by Rory and Kieran O’Reilly and is backed by leading investors, including Nava Ventures, 8VC, American Express, Plaid, and many more.
“Making the process of putting Fizz top-of-wallet as smooth as possible for our users is a huge priority. Knot's CardSwitcher has been instrumental in helping us achieve market-leading adoption rates.”




Read Knot Reviews, Testimonials & Customer References from 6 real Knot customers.
Browse Knot Case Studies, Customer Success Stories, & Customer References from 7 businesses that use Knot.