> For the complete documentation index, see [llms.txt](https://docs.3adao.org/3a-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.3adao.org/3a-protocol/technical-documentation/smart-contracts/interacting-with-contracts.md).

# Interacting with contracts

- [Creating a vault](https://docs.3adao.org/3a-protocol/technical-documentation/smart-contracts/interacting-with-contracts/creating-a-vault.md)
- [Adding and removing collateral](https://docs.3adao.org/3a-protocol/technical-documentation/smart-contracts/interacting-with-contracts/adding-and-removing-collateral.md)
- [Borrowing and Repaying](https://docs.3adao.org/3a-protocol/technical-documentation/smart-contracts/interacting-with-contracts/borrowing-and-repaying.md)