# API Reference

> **For a build-free API overview**, see the
> [C++ Quick Reference](cpp_quick_reference.md) — readable directly on GitHub
> without running Doxygen or Sphinx.

DTL API documentation is generated from headers with Doxygen and surfaced in
this site via Breathe.

```{toctree}
:maxdepth: 1

cpp_quick_reference
c_api_reference
python_api_reference
fortran_api_reference
README
```

## C and C++ API (Doxygen)

```{eval-rst}
.. doxygenindex::
   :project: DTL
```