# API Reference

::: pdm.core.Core
    options:
      show_root_heading: yes
      show_source: false
      heading_level: 2

::: pdm.core.Project
    options:
      show_root_heading: yes
      show_source: false
      heading_level: 2

## Signals

!!! tip
    Added in 1.12.0.

::: pdm.signals
    options:
      heading_level: 3
