# Package Retriever API

## Docs

- [API Reference](https://docs.packageretriever.com/api-reference/overview.md): Complete reference for every Package Retriever API endpoint.
- [Authentication](https://docs.packageretriever.com/guides/authentication.md): How to authenticate with the Package Retriever API using Bearer tokens.
- [Migrating from ShipStation](https://docs.packageretriever.com/guides/migrating-from/shipstation.md): Move your shipping integration from ShipStation to Package Retriever in hours, not days.
- [Rate Limits](https://docs.packageretriever.com/guides/rate-limits.md): Published rate limits for every API endpoint. No surprises.
- [Sandbox & Testing](https://docs.packageretriever.com/guides/sandbox-and-testing.md): Test your integration without real billing or real labels using sandbox API keys.
- [Tracking & Webhooks](https://docs.packageretriever.com/guides/tracking-and-webhooks.md): Track shipments and receive label.created webhook notifications.
- [Changelog](https://docs.packageretriever.com/pages/changelog.md): API changes, new features, and deprecations.
- [Error Code Reference](https://docs.packageretriever.com/pages/error-reference.md): Every error code the Package Retriever API returns, with HTTP status, description, and fix.
- [Package Retriever API](https://docs.packageretriever.com/pages/introduction.md): The free shipping API for multi-carrier label creation, rate shopping, and real-time tracking.
- [Quickstart: cURL](https://docs.packageretriever.com/pages/quickstart-curl.md): Test the API from your terminal in 2 minutes.
- [Quickstart: Node.js](https://docs.packageretriever.com/pages/quickstart-node.md): Ship your first label in under 5 minutes with TypeScript.
- [Quickstart: Python](https://docs.packageretriever.com/pages/quickstart-python.md): Ship your first label in under 5 minutes with Python.

## OpenAPI Specs

- [openapi](https://docs.packageretriever.com/api-reference/openapi.json)