Square

Square is a payment service provider best known for combining card processing with point-of-sale hardware, used widely by small and mid-sized merchants for both in-person and online payments. It lets merchants accept all major card networks through a single account, with optional ACH bank debits and in-person acceptance via Square terminals. Square is strongest in the United States but also operates across several other markets. The connection to Square uses OAuth, so merchants can authorise the connection by logging in to Square without handling API credentials directly.

At a glance

Website	squareup.com
Type	Gateway
Connection	OAuth
Links	Dashboard · Support · Status · Terms · Privacy · Test cards

Where it operates

Merchants can onboard Square in the following countries:

Australia, Canada, Japan, United Kingdom, United States.

Payment methods

Through our Square integration, merchants can accept:

• Cards: Visa, Mastercard, American Express, Discover, Diners Club, JCB, and UnionPay
• Bank debits: ACH (US)
• In person: Card payments taken on a Square terminal (point of sale)

ACH is enabled per connection in the Square connection settings, and must also be enabled on your Square account. Square terminal (point of sale) acceptance is a platform-level setting rather than a per-connection option, available on request.

Connecting Square

See the Connecting Square guide for step-by-step setup instructions.