> For the complete documentation index, see [llms.txt](https://learn.onpop.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.onpop.io/chains/welcome/readme.md).

# Build a Polkadot Chain

<figure><img src="/files/JWbEhHZqrDTBAFQxC6je" alt=""><figcaption></figcaption></figure>

Build custom blockchain that can operate as solo chains or connect to Polkadot for shared security and interoperability, using the [Polkadot SDK](https://docs.polkadot.com/).

Start building with the [Polkadot documentation](https://docs.polkadot.com/).

**Ready to build your first chain?** [Start here!](/chains/guides/create-a-new-chain.md)