Command Line Interface
Command Line Interface on the APIs.io network is a curated area collecting 4 resources — specifications, tools, and documentation — for this subject.
24 providers on the network work in this area, including Shell Scripting, Aider, Plandex, PowerShell, HTTPie, Warp, and 18 more — each links out to that provider’s APIs, schemas, and governance artifacts.
Related areas: Linux/Unix System. Browse every area at areas.apis.io.
About this area
Command Line Interface (CLI) is a text-based way of interacting with software by typing commands at a prompt. Modern CLI design draws on decades of UNIX conventions while incorporating contemporary practices around discoverability, human-friendly output, machine-readable formats, configuration, subcommands, and progressive disclosure of complexity. CLIs remain a central surface for developer tools, infrastructure automation, package managers, build systems, and anything that benefits from scripting and composition.
Curated resources (4)
Command Line Interface Guidelines
An open source guide that distills decades of CLI design wisdom into concrete, actionable guidelines. Authored by engineers from Docker, Squarespace, and others, it covers philosophy, arguments and flags, output, erro...
POSIX Utility Conventions
The POSIX Utility Conventions specify the expected behavior of command line utilities including argument parsing, flag styles, end-of-options separators, and exit status. Following POSIX makes a tool feel native to UN...
CLI Frameworks Landscape
A survey of widely adopted CLI frameworks across programming language ecosystems. These libraries handle argument parsing, subcommand routing, flag validation, help text generation, shell completion, and other cross-c...
Heroku CLI Style Guide
Heroku's internal style guide for CLI design, made public to share their lessons in building a polished developer experience. Covers naming, output, error handling, JSON output, and progressive disclosure of power-use...
Related providers (370)
Top 24 of 370 network providers tagged for this area — search the full set on apis.io.
| Provider | Description | APIs | Rating |
|---|---|---|---|
| Shell Scripting | A collection of APIs and resources for Shell Scripting development, including utilities, documentation, and tools. | 5 | minimal |
| Aider | Aider is an open-source, terminal-based AI pair programmer that edits code directly inside a developer's local Git repository. Written in Python and distributed via PyPI under t... | 2 | thin |
| Plandex | Plandex is an open-source, terminal-based AI coding agent designed to take on large, multi-step software development tasks across many files in real world codebases. Written in ... | 1 | developing |
| PowerShell | PowerShell is a cross-platform task automation solution made up of a command-line shell, a scripting language, and a configuration management framework. The PowerShell ecosystem... | 3 | thin |
| HTTPie | HTTPie is a user-friendly command-line and web-based HTTP client designed for testing, debugging, and interacting with APIs and HTTP services. It provides expressive syntax that... | 1 | thin |
| Warp | Warp is an open-source, Rust-based, GPU-accelerated agentic development environment built on top of a modern terminal. It combines a high-performance terminal with AI-powered cl... | 3 | developing |
| Continue | Continue is the open-source AI code assistant for VS Code and JetBrains, distributed under Apache 2.0. The Continue IDE extensions and the Continue CLI federate to any LLM provi... | 5 | developing |
| Google Apps Script | The Apps Script API provides programmatic access to manage Google Apps Script projects, deployments, and executions. It enables creating and updating script projects, managing p... | 1 | developing |
| Liblab | liblab generates and publishes type-safe, idiomatic SDKs in TypeScript, Python, Java, .NET, Go, PHP, and Terraform from OpenAPI/Swagger/Postman specs, plus MCP servers that expo... | 4 | thin |
| Amazon CloudShell | AWS CloudShell is a browser-based terminal that enables users to manage and explore AWS resources directly from the AWS Management Console. Pre-authenticated, pre-installed with... | 1 | thin |
| Promptfoo | Promptfoo is an open-source LLM evaluation and red-teaming framework distributed as a TypeScript CLI and Node.js library under the MIT license. Developers use it to evaluate pro... | 6 | minimal |
| Konfig | Konfig was a developer-tools startup that generated SDKs, API documentation, interactive demos, and tutorials from OpenAPI Specifications and Postman Collections, delivered prim... | 1 | minimal |
| Xh | xh is a friendly and fast command-line HTTP client written in Rust, designed as a modern, high-performance alternative to HTTPie. It reimplements HTTPie's request-item syntax an... | 1 | minimal |
| Oapi-Codegen | oapi-codegen is an open source Go code generator that produces client and server boilerplate from OpenAPI 3.0 and 3.1 specifications with support for Echo, Chi, Gin, Gorilla/Mux... | 1 | minimal |
| pnpm | pnpm is a fast, disk space efficient package manager for JavaScript and Node.js projects. It uses a content-addressable store and a strict, symlinked node_modules layout so ever... | 5 | minimal |
| AVAP BRUNIX | AVAP BRUNIX is an AI-powered API development platform that serves as a copilot for developers, integrating artificial intelligence directly into the core of the AVAP framework t... | 1 | minimal |
| Cline | Cline (formerly Claude Dev) is an open-source autonomous coding agent. The Cline VS Code extension has 5M+ installs; JetBrains is in early access; the Cline CLI is also availabl... | 5 | minimal |
| Postman | Postman is the world's leading API platform, used by 35+ million developers to design, build, test, document, mock, monitor, and govern APIs across the entire API lifecycle. The... | 17 | exemplar |
| UiPath | UiPath is an enterprise automation platform offering robotic process automation (RPA), AI-powered automation, and agentic automation capabilities. The platform includes Orchestr... | 6 | exemplar |
| Workato | Workato is an enterprise automation and integration platform that enables organizations to integrate their apps and automate business workflows without extensive coding. It prov... | 4 | strong |
| Svix | Svix is an enterprise webhooks-as-a-service platform on the sending side of the webhook market. It provides a single API for delivering reliable, secure, low-latency webhooks at... | 4 | strong |
| Sentry | Sentry is a developer-first application monitoring platform that helps software teams discover, triage, and prioritize errors and performance issues in production. Sentry provid... | 3 | strong |
| Oracle Integration | Oracle Integration provides native connectivity to Oracle and non-Oracle Software as a Service (SaaS) and on-premises applications, such as Oracle ERP Cloud, Oracle Service Clou... | 4 | strong |
| Amazon EC2 Image Builder | EC2 Image Builder simplifies the building, testing, and deployment of Virtual Machine and container images for use on AWS or on-premises. It provides an automated pipeline to cr... | 1 | strong |
Related areas
Tags: Automation, CLI, Command Line, Developer Experience, Developer Tools, Scripting, Shell, Terminal, Tooling, UNIX.
Sourced from the api-evangelist/command-line-interface topic repo.