Create an Account and App

Make your First API Call

View the API Logs

Verify the Payment

Developer Tools

Sample Applications

Build your First Query

GraphQL Explorer

Create Redirect URL and Authorization Page URL

Receive Authorization and Manage OAuth Tokens

Refresh and Revoke OAuth Tokens

Token Introspection

OAuth Best Practices

OAuth Walkthrough

Migrate to the Square API OAuth Flow

Move OAuth to Production

Permissions Reference

Webhook Subscriptions

Migrate from Deprecated APIs

Deprecated Items

API Migration Guides

v1 Payments API

Square Transactions API

Migrate Employees to Team Members

Migrate from CreateCheckout to CreatePaymentLink

International Development

Develop for Japan

Compliance with Japan's Tax Invoice System

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Common Data Types

The following data types are common across Square APIs:

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