Typer
JSON →Typer is a library for building CLI applications based on Python type hints, created by the author of FastAPI. It leverages type hints for argument parsing and integrates with Rich for beautiful output. The current version is 0.25.1, released in 2025, with a release cadence of several minor and patch versions per year. It requires Python >=3.10.
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API endpoints
full doc /v1/registry/typer
install /v1/registry/typer/install
compatibility /v1/registry/typer/compatibility