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Flex Forward API

Flex Forward is a unified shipping label platform that provides a single API for creating labels, retrieving label documents, and tracking shipments across multiple courier services.

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What you can do

Create Labels

Create shipping labels through supported courier services with idempotent requests.

Get Label Documents

Retrieve airway bill PDFs or PNGs for your created labels.

Track Shipments

Get real-time tracking status in a unified format across all couriers.

Authentication

Learn how to authenticate your API requests.

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Supported couriers

CourierSlugRegions
YunExpressyunexpressGlobal cross-border e-commerce
More couriers are being added. Contact us if you need a specific courier integration.

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Base URL

https://api.flexforward.com
All API requests must be made over HTTPS. Requests made over plain HTTP will be rejected.

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Need help?

If you have questions or need support, please open an issue on GitHub.