UPS

UPS Developer Portal provides comprehensive REST APIs with OAuth 2.0 authentication (deprecated access keys after June 2024).

The API suite covers Shipping, Tracking, Time-in-Transit, Rating, Address Validation, Pickup, Dangerous Goods, Paperless Documents, and Freight services. Approximately 110 endpoints organized by customer journey (Prepare, Manage, Create Shipments).

Available in 150+ countries with 24 language support. Official SDKs available supporting both authorization code and client credentials OAuth flows. Sandbox environment for testing with mock data.

Rate limiting and API governance in place.

OpenAPI/Swagger documentation with interactive testing capabilities. Premium and core APIs available with tiered pricing. It's ideal for e-commerce platforms, logistics systems, warehouse management, and shipping automation needing global carrier integration with comprehensive tracking and label generation capabilities.