> For the complete documentation index, see [llms.txt](https://docs.parcellab.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parcellab.com/docs/developers/getting-started.md).

# Getting Started

- [Quickstart Guide](https://docs.parcellab.com/docs/developers/getting-started/quickstart-guide.md): Integrate the parcelLab API into your system and begin tracking shipments and sending status updates to your customers.
- [Authentication](https://docs.parcellab.com/docs/developers/getting-started/authentication.md): Authentication is required when you interact with the parcelLab API to send tracking information or status updates.
- [Error Codes](https://docs.parcellab.com/docs/developers/getting-started/error-codes.md): Quickly identify and resolve API request failures.
- [API Reference](https://docs.parcellab.com/docs/developers/getting-started/api-reference.md): Our API v4 Enhanced provides you with great flexibility and scope to retrieve and send data as you need.


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