> For the complete documentation index, see [llms.txt](https://docs.casa.io/wealth-security-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.casa.io/wealth-security-protocol/chosen-key-schemes.md).

# ✅Chosen Key Schemes

- [5-Key Vault](https://docs.casa.io/wealth-security-protocol/chosen-key-schemes/3-of-5-key-shield.md)
- [3-Key Vault](https://docs.casa.io/wealth-security-protocol/chosen-key-schemes/2-of-3-basic-multisig.md)
- [Pay Wallet](https://docs.casa.io/wealth-security-protocol/chosen-key-schemes/mobile-key.md)