> For the complete documentation index, see [llms.txt](https://docs.piperx.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.piperx.xyz/developer/api.md).

# API

### Requirement

The PiperX APIs provide a way to query PiperX standard (v2) and concentrated pools (v3) status. The below examples demonstrated how to query them. Note that PiperX API implemented [CORS Policy](https://aws.amazon.com/what-is/cross-origin-resource-sharing/#:~:text=Cross%2Dorigin%20resource%20sharing%20\(CORS\)%20is%20an%20extension%20of,that%20are%20public%20or%20authorized.). Therefore, if you want to use PiperX APIs from your deployed site (<https://example.xyz>), you need to contact PiperX team first to add your site.