# `qiskit-fermions` C API reference

This is the reference for the C API of the `qiskit-fermions` package.

## Operators

* [Operator Representations](qf-operators.html.md)
* [Operator Library](qf-operators-library.html.md)
* [Operator Terms](qf-operators-terms.html.md)

## Mappers

* [Mapper Library](qf-mappers-library.html.md)
* [Ternary Trees](qf-ternary-tree.html.md)

## Miscellaneous

* [Various](qf-various.html.md)