# Primis > Primis is a post-purchase customer experience platform for eCommerce businesses, providing branded order tracking, discounted shipping, streamlined returns, and cross-border international logistics. The Primis REST API (OpenAPI 3.0.0) exposes retailer, order, shipment, product, campaign, billing, user, and tracking-page resources over HTTPS with bearer-token authentication. ## APIs - [Primis REST API](https://api.primis.cx): Production REST API base URL (JSON over HTTPS, bearer-token auth) - [Primis API docs (Swagger UI)](https://api.primis.cx/api-docs): Interactive OpenAPI reference - [QA server](https://api.qa.primis.cx): Test environment ## Specs - [OpenAPI 3.0.0](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/openapi/primis-openapi-original.json): 42 operations across 12 tags (Authentication, Billing, Retailer, User, Campaign, Order, Shipment, Product, FAQ, Document, Index, Tracking) ## Authentication - Bearer token in the Authorization header. Three token types: JWT (from POST /auth/login, sent as `Bearer `), Retailer API Key, and CMS API Key (both sent without the `Bearer` prefix). ## Artifacts - [Authentication profile](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/authentication/primis-authentication.yml) - [API conventions](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/conventions/primis-conventions.yml) - [Data model](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/data-model/primis-data-model.yml) - [Error catalog](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/errors/primis-problem-types.yml) - [Lifecycle](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/lifecycle/primis-lifecycle.yml) - [MCP candidate tools](https://raw.githubusercontent.com/api-evangelist/primis/refs/heads/main/mcp/primis-mcp.yml) ## Docs - [Primis website](https://primis.cx) - [Integrations](https://primis.cx/integrations/): Shopify, BigCommerce, Magento/Adobe Commerce, WooCommerce, Brightpearl, plus carriers (DPD, DHL, USPS, Evri, UPS, FedEx) - [Pricing](https://primis.cx/pricing/) - [Retailer login](https://retailer.primis.cx) - [Contact](https://primis.cx/contact-us/)