> For the complete documentation index, see [llms.txt](https://brownfi.gitbook.io/brownfi-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://brownfi.gitbook.io/brownfi-docs/brownfi-v3/architecture-overview/router.md).

# Router

The Router is the user-facing entry point for all swaps. It supports 02 modes:

* Exact output: trader specifies how much they want to receive; Router works backwards to quote the required input.
* Exact input: trader specifies how much they want to send; Router works forwards to compute the output.

In both cases the Router enforces the imbalance cap automatically: if a trade would breach gamma, it is reduced to the maximum allowable size and the interface is notified.

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