Payment service provider / Acquirer / DIRECTORY

Square

An independent overview of Square's public criteria. CrystalCore helps assess fit, prepare the KYB pack and navigate the application process without promising approval.

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CATEGORIES

Payment service provider / Acquirer

STATED COVERAGE

United States · Canada · Australia · Japan · United Kingdom · Ireland · France · Spain

INTEGRATIONS

Payments API · Web Payments SDK · In-App Payments SDK

DATA REVIEWED

August 9, 2026

Best fit and business types

Retail, hospitality, professional services, ecommerce, and other SMBs in eight supported processing markets.

Capabilities

  • POS and in-person acquiring
  • Online payments, invoices, and payment links
  • Commerce, orders, and business software

How onboarding works

Online in the processing-account country; the seller must be located in the activation country to process card payments.

Baseline eligibility

A business and settlement account in a supported country, valid activity, and required identity verification.

Restrictions and risk review

Illegal goods, cash-like or self-payments, gambling, adult, selected financial services, weapons, and some card-not-present goods are unsupported.

Channels and integrations

Payments APIWeb Payments SDKIn-App Payments SDKPOSPluginsWebhooks

Official sources

Public information reviewed on August 9, 2026. Criteria may change without notice, so current requirements are reconfirmed with the organisation before applying.

IMPORTANT / NO APPROVAL GUARANTEE

This page is informational and does not state a partnership between CrystalCore and Square. Availability depends on company jurisdiction, UBO residence and citizenship, activity, markets, turnover and an independent KYC/KYB/AML review. Square makes the final decision.