# Reference

API documentation and normative format contracts.

```{toctree}
:maxdepth: 1
:caption: Formats

formats
sg_manifest
sg_on_gmsh
```

```{toctree}
:maxdepth: 1
:caption: API

sg
sg_analysis_config
fe_model
structural_model
section
mesh
model/index
io
plot
```