> For the complete documentation index, see [llms.txt](https://ibvm.gitbook.io/ibvm-doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ibvm.gitbook.io/ibvm-doc/system-contracts.md).

# System Contracts

- [Vault](https://ibvm.gitbook.io/ibvm-doc/system-contracts/vault.md): Overview
- [Bridge](https://ibvm.gitbook.io/ibvm-doc/system-contracts/bridge.md)
- [BTC / ZKbtc / ZkIBVM](https://ibvm.gitbook.io/ibvm-doc/system-contracts/btc-zkbtc-zkibvm.md)