# Page Not Found

The URL `guide/introduction/how-humanity-protocol-works` does not exist.

You might be looking for one of these pages:
- [How Biometric Proof-of-Humanity Works](https://docs.humanity.org/understanding-humanity/how-biometric-proof-of-humanity-works.md)
- [@humanity-org/connect-sdk](https://docs.humanity.org/build-with-humanity/build-with-the-sdk-api/humanity-org-connect-sdk.md)
- [@humanity-org/react-sdk](https://docs.humanity.org/build-with-humanity/build-with-the-sdk-api/humanity-org-react-sdk.md)
- [Add Humanity Testnet to Metamask](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/connect-wallets/add-humanity-testnet-to-metamask.md)
- [Add Humanity Mainnet to Metamask](https://docs.humanity.org/developer-guides-and-tutorials/on-chain-guides/connect-wallets/add-humanity-mainnet-to-metamask.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.humanity.org/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.humanity.org/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/understanding-humanity/how-biometric-proof-of-humanity-works.md`)
- Use `Accept: text/markdown` header for content negotiation