# MassSwitcher: Update a card at many merchants at once | Knot

> MassSwitcher lets users update their card at many merchant accounts at once by logging in with their password manager or keychain.

MassSwitcher™

## Update cards instantly across all merchants with a single login

Knot’s MassSwitcher™ allows users to update their card information across many merchant accounts instantly by logging in with their password manager or keychain. No more manual updates or repetitive logins—just effortless card management.

- [Get Started](https://www.knotapi.com/demo/)

## Trusted by

Current, Visa, Mastercard, OnePay, Bilt, American Express, PayPal, Plaid, Step, Unit

- [Unit Press Release](https://updates.unit.co/announcements/knot-integration)

## Instantly update 100+ merchants in seconds

Knot’s MassSwitcher™ lets users instantly update their card details across multiple merchant accounts by simply logging in with their password manager or keychain. Say goodbye to manual updates and repetitive logins—card management has never been easier.

## Supercharge revenue with a few lines of code

Boost revenue exponentially with instant updates to your users' merchant accounts simultaneously. Capture interchange revenue faster and more broadly with a single user experience.

## Reduce User Friction

With MassSwitcher™, create a frictionless login experience to merchant accounts for your users - one login and they can switch their card everywhere instantly.

CardSwitcher

## Become the default card-on-file and stay top of wallet

Banks and fintechs use Knot to automatically update default payment methods on behalf of their users — making sure their card is top of wallet at (almost) every merchant.

- [CardSwitcher™](https://www.knotapi.com/cardswitcher/)

AccountUpdater

## Update cardholder information in seconds

Banks and fintechs trust Knot to seamlessly update cardholder information, enhancing the top-of-wallet status and reducing declines.

- [AccountUpdater™](https://www.knotapi.com/accountupdater/)

## MassSwitcher™ supports where your customers spend

Lyft, Uber, Netflix, Amazon, Walmart, Spotify

+ 100s more

## The leading solution for changing card payments

## Personal Banking

Make switching banks easy for your customers.

- [Learn more](https://www.knotapi.com/personal-banking/)

## Business Banking

Ensure your company card is the default payment method.

- [Learn more](https://www.knotapi.com/business-banking/)

## BaaS

Know when a customer switches banks and reduce card errors.

- [Learn more](https://www.knotapi.com/baas/)

## Merchants

Transform your product offering with our APIs.

- [Learn more](https://www.knotapi.com/merchants/)

Get started

## Effortless card updates are just a login away

- [Get started](https://www.knotapi.com/demo/)

---

Canonical URL: https://www.knotapi.com/mass-switcher/
More: [Site map](https://www.knotapi.com/sitemap.xml) · [llms.txt](https://www.knotapi.com/llms.txt) · [Developer docs](https://docs.knotapi.com)