dotnet/command-line-api

Health v2 · maintenance only

Adoption not part of the score

3674 stars · 431 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

System.CommandLine is a .NET library for command line parsing, model binding, invocation, and rendering of terminal output, plus the dotnet-suggest tool for shell completions. It is maintained under the dotnet organization and documented on Microsoft Learn.

Use cases

• parse command line arguments in a .NET app
• build a CLI tool in C#
• add shell tab completions to a command line program
• bind command line options to strongly typed models
• render help text and terminal output for a CLI
• implement POSIX-style options and subcommands

When to choose

• you are building a command line application or tool in .NET
• you want first-party Microsoft-supported parsing with model binding
• you need shell completion support for your CLI

When to avoid

• you are not on the .NET platform
• you need a full CLI framework with scaffolding and plugins rather than a parsing library
• you need a stable long-term API, as the library has had evolving pre-release APIs

Facets

library · maturity active

parser cli developer-tools developer-tools parsers cross-platform dotnet cli system-commandline shell-completions posix dotnet-suggest csharp command-line

Member repositories

For agents

markdown · JSON · MCP: product_card(name="dotnet/command-line-api")