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

# Legacy

We have implemented the most used services from the current system in the new API in order to provide a high degree of compatibility with the current tools accessing programatically our services.

The live documentation for this endpoints can be found [here](https://www.ebi.ac.uk/unichem/api/docs#/Legacy).