---
myst:
  html_meta:
    description: PyTorch C++ API reference — complete documentation for ATen, Autograd, nn, optim, data, CUDA, and more.
    keywords: PyTorch, C++, API reference, ATen, Autograd, nn, optim, CUDA
---

# C++ API Reference

This section provides reference documentation for the PyTorch C++ API,
organized by module.

```{toctree}
:maxdepth: 2
:caption: Core

aten/index
c10/index
autograd/index
cuda/index
xpu/index
```

```{toctree}
:maxdepth: 2
:caption: C++ Frontend

nn/index
optim/index
data/index
serialize/index
```

```{toctree}
:maxdepth: 2
:caption: Extensions

library/index
stable/index
```