Fee Engine documentation

April 14th, 2025 Added We’ve released the first version of the Fee Engine documentation. Fee Engine helps you calculate and apply fees based on rules you can fully customize. This release includes:

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Guides

• Fee Engine: Understand how Fee Engine works and the problems it solves.
• Fee Engine Calculations: Explore the calculations behind Fee Engine.
• Using Fee Engine: Find out how to use Fee Engine in your projects.

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APIs

• Packages API: Manage your packages with this API.
• Calculation API: Use this API to calculate fees.
• Estimation API: Estimate fees before applying them using this API.
• Fee Engine Error List: List of errors that Fee Engine can return.