> ## Documentation Index
> Fetch the complete documentation index at: https://developers.stellar.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Contract account examples

> Real projects that showcase policy signers, passkeys, and contract-account UX on Stellar.

Use these projects as references or starting points. They are community-built; review and test before reusing in production.

### Zafegard

A smart wallet that demonstrates the use of stateful policy signers.

* View the [code](https://github.com/kalepail/zafegard)
* Watch the [demo video](https://www.youtube.com/watch?v=I4i6sL-pHrs)

### Do Math

A smart wallet that demonstrates the use of multi-sig and policy signers to, surprisingly, do math without needing to input a passkey for every interaction.

* View the [code](https://github.com/kalepail/do-math)
* Watch the [demo video](https://www.youtube.com/watch?v=lwvE6pEBmXw)

### Soroban by example

An app that uses passkeys to sign Stellar smart contract transactions.

* View the [demo](https://passkey.sorobanbyexample.org)
* View the [code](https://github.com/kalepail/soroban-passkey)
* Watch the [demo video](https://www.youtube.com/watch?v=y38_O4oIvbY)
* Watch the [discussion](https://developers.stellar.org/meetings/2024/05/09.md)
* Read the [blog](https://kalepail.com/blockchain/the-passkey-powered-future-of-web3)

### Super Peach

A passkey-powered multi-signer abstract account contract example.

* View the [demo](https://superpeach.xyz)
* View the [code](https://github.com/kalepail/superpeach)
* Watch the [demo video](https://youtu.be/0Agiwso2OMc?si=CHD9U8s-YLyqbXUJ)

### Ye Olde Guestbook

A passkey-powered internet guestbook from yesteryear built with smart contracts and frontend code.

* View the [demo](https://ye-olde-guestbook.vercel.app)
* View the [code](https://github.com/ElliotFriend/ye-olde-guestbook)
* Read the [tutorial](https://developers.stellar.org/docs/build/apps/guestbook)