> For the complete documentation index, see [llms.txt](https://web3-username.gitbook.io/.web3-username-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://web3-username.gitbook.io/.web3-username-docs/third-party-intergation.md).

# Third Party Intergation

- [CNS-Open-Service](https://web3-username.gitbook.io/.web3-username-docs/third-party-intergation/cns-backend.md): 若需在产品中支持域名售卖和注册，请参考此文档；
- [Open Service APIs](https://web3-username.gitbook.io/.web3-username-docs/third-party-intergation/open-service-apis.md)