# API Reference

The cellspec API is organized into three main modules, following the scanpy convention:

- **pp** (preprocessing): Loading VCFs, annotation, filtering
- **tl** (tools): Computing spectra, rates, and identifying patterns
- **pl** (plotting): Visualization functions

## Modules

```{toctree}
:maxdepth: 1

preprocessing
tools
plotting
```

## Import cellspec

```python
import cellspec as spc
```