--- title: 'USPS' description: '' --- # USPS undefined | Detail | Value | |---|---| | Category | Logistics | | Base URL | `https://apis.usps.com/v3` | | Authentication | OAuth2 Client Credentials | | Endpoints | 6 | | Connector key | `usps` | ## Using USPS in a workflow 1. Go to **Connections** and click **New Connection**. 2. Pick **USPS** from the marketplace. 3. Enter your credentials (see Authentication above for what's expected). 4. In a workflow, drop an **API Call** node and select this connection. 5. Pick the operation you need from the Operation dropdown — see the table below. ## Available Endpoints | Endpoint | Summary | |---|---| | [GET ](./get_tracking_0) | Tracking | | [GET ](./get_address_validation_1) | Address Validation | | [GET ](./get_rates_2) | Rates | | [GET ](./get_labels_3) | Labels | | [GET ](./get_delivery_standards_4) | Delivery Standards | | [GET ](./get_pickup_5) | Pickup | > Each endpoint has its own page with parameter details, an example > `API Call` node configuration, and the response shape.