anyswap-core

What the AnySwap server and SDKs share: the swap script and the transactions that spend it on Bitcoin and Liquid, key derivation, MuSig2, invoice parsing, fee arithmetic, request signing and the server API's types.

An integration wants anyswap-sdk instead, which re-exports what it needs from here and drives swaps to completion. The docs cover it, and the API reference is on docs.rs.