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

# DDXF

- [Marketplace Contract API](https://docs.ont.io/developer-tools/api/ddxf/marketplace-api.md): DDXF Marketplace smart contract API reference
- [Storage API](https://docs.ont.io/developer-tools/api/ddxf/storage-api.md): DDXF Storage API reference